Document And Entity Information [Abstract] Document And Entity Information Statement [Table] Statement [Line Items] Document Type Document Type Amendment Flag Amendment Flag Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Entity Current Reporting Status Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Entity Common Stock Shares Outstanding Entity Common Stock, Shares Outstanding CONDENSED BALANCE SHEETS (UNAUDITED) Assets [Abstract] ASSETS Assets Current [Abstract] Current assets: Cash And Cash Equivalents At Carrying Value Cash and cash equivalents, end of period Cash and cash equivalents, beginning of period Cash and cash equivalents Accounts Receivable Net Current Accounts receivable–trade, less allowance for doubtful accounts ($2.2 at October 31, 2018 and $2.3 at January 31, 2018) Inventory Net Inventories, net Other Assets Current Other current assets Assets Current Total current assets Property Plant And Equipment Net Property and equipment, net of accumulated depreciation ($148.4 at July 31, 2018 and $128.9 at January 31, 2018) Property, Plant and Equipment, Net, Total Intangible Assets Net Excluding Goodwill Identifiable intangible assets, net Other Assets Noncurrent Other assets Assets Total assets Total assets Liabilities And Stockholders Equity [Abstract] LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities Current [Abstract] Current liabilities: Accounts Payable Current Accounts payable Accrued Liabilities Current Accrued liabilities Total accrued liabilities Liabilities Current Total current liabilities Long Term Debt Noncurrent Long-term debt Other Liabilities Noncurrent Other non-current liabilities Commitments And Contingencies Commitments, contingencies and off-balance sheet arrangements (Note 8) Stockholders Equity [Abstract] Parent company equity: Common Stock Value Common stock, $0.01 par value; 110.0 million shares authorized; 22.3 million shares issued as of October 31, 2018 and 22.1 shares issued as of January 31, 2018 Additional Paid In Capital Additional paid-in capital Represents the amount of Parent Company investment. Parent Company Investment Former Parent investment Retained Earnings Accumulated Deficit Accumulated deficit Stockholders Equity Total Parent company equity Liabilities And Stockholders Equity Total liabilities and equity Allowance For Doubtful Accounts Receivable Current Accounts receivable - trade, allowance for doubtful accounts Accumulated Depreciation Depletion And Amortization Property Plant And Equipment Property and equipment, accumulated depreciation Less accumulated depreciation Common Stock Par Or Stated Value Per Share Common stock, par value Common Stock Shares Authorized Common stock, shares authorized Common Stock Shares Issued Common stock, shares issued CONDENSED STATEMENTS OF EARNINGS (LOSS) (UNAUDITED) Sales Revenue Net Revenues Service revenues Cost Of Goods And Services Sold Cost of sales Selling General And Administrative Expense Selling, general and administrative Research And Development Expense Research and development costs Operating Income Loss Operating earnings (loss) Operating earnings (loss) Income Tax Expense Benefit Income tax expense Net (loss) earnings Net earnings (loss) Net (loss) earnings Basic net earnings per share Basic net earnings per common share Net (loss) earnings per share - basic Diluted net earnings per share Diluted net earnings per common share Net (loss) earnings per share - diluted Weighted Average Number Of Shares Outstanding Basic Basic weighted average common shares (in millions) Weighted average common shares - basic Weighted Average Number Of Diluted Shares Outstanding Weighted average common shares - diluted Diluted weighted average common shares (in millions) CONDENSED STATEMENTS OF CASH FLOWS (UNAUDITED) Net Cash Provided By Used In Operating Activities Continuing Operations [Abstract] CASH FLOWS FROM OPERATING ACTIVITIES: Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract] Adjustments to reconcile net earnings (loss) to net cash flows provided by (used in) operating activities: Depreciation And Amortization Depreciation and amortization Share Based Compensation Non-cash compensation Amount of expense (income) related to adjustments to the provision for doubtful accounts. Adjustment for Doubtful Accounts Provision for doubtful accounts Gain Loss On Sale Of Property Plant Equipment Loss on disposal of property, equipment and other Increase Decrease In Operating Capital [Abstract] Changes in operating assets and liabilities: Increase Decrease In Accounts Receivable Accounts receivable Increase Decrease In Inventories Inventories Increase Decrease In Other Operating Assets Other current and non-current assets Increase Decrease In Accounts Payable And Accrued Liabilities Accounts payable Increase (Decrease) in Other Operating Liabilities Other current and non-current liabilities Net Cash Provided By Used In Operating Activities Net cash flows provided by (used in) operating activities Net Cash Provided By Used In Investing Activities Continuing Operations [Abstract] CASH FLOWS FROM INVESTING ACTIVITIES: Payments To Acquire Property Plant And Equipment Capital expenditures Capital expenditures Net Cash Provided By Used In Investing Activities Net cash flows used in investing activities Net Cash Provided By Used In Financing Activities Continuing Operations [Abstract] CASH FLOWS FROM FINANCING ACTIVITIES: Proceeds From Issuance Of Long Term Debt Proceeds from long-term debt Payments Of Debt Issuance Costs Debt origination costs Proceeds from Contributions from Parent Capital contribution from Former Parent The cash inflow (outflow) from transfers from Parent. Net Transfers from Parent Net transfers from Former Parent Net Cash Provided By Used In Financing Activities Net cash flows provided by financing activities Cash And Cash Equivalents Period Increase Decrease Net change in cash and cash equivalents Noncash Investing and Financing Items [Abstract] Supplemental schedule of non-cash activities: Noncash or Part Noncash Acquisition, Fixed Assets Acquired Accrued capital expenditures Description of Business and Basis of Presentation Business Description And Basis Of Presentation [Text Block] Description of Business and Basis of Presentation Recent Accounting Pronouncements New Accounting Pronouncements And Changes In Accounting Principles [Text Block] Recent Accounting Pronouncements Property and Equipment, Net Property Plant And Equipment Disclosure [Text Block] Property and Equipment, Net Related Party Transactions Related Party Transactions Disclosure [Text Block] Related Party Transactions Accrued Liabilities Accounts Payable And Accrued Liabilities Disclosure [Text Block] Accrued Liabilities Long-Term Debt Long Term Debt [Text Block] Long-Term Debt Fair Value Measurements Fair Value Disclosures [Text Block] Fair Value Information Commitments, Contingencies and Off-Balance Sheet Arrangements Commitments And Contingencies Disclosure [Text Block] Commitments, Contingencies and Off-Balance-Sheet Arrangements Accounting for Stock-Based Compensation Disclosure Of Compensation Related Costs Share Based Payments [Text Block] Accounting for Stock-Based Compensation Income Taxes Income Tax Disclosure [Text Block] Income Taxes Segment Reporting Segment Reporting Disclosure [Text Block] Segment Reporting Net Earnings Per Common Share Earnings Per Share [Text Block] Net Earnings Per Common Share Subsequent Events Subsequent Events [Text Block] Subsequent Events Basis Of Accounting Policy Policy [Text Block] Basis of Presentation Property Plant And Equipment [Text Block] Property and Equipment Schedule Of Accrued Liabilities Table [Text Block] Accrued Liabilities Schedule of Segment Reporting Information, by Segment [Table Text Block] Revenues and Other Financial Information by Business Segment Tabular disclosure of revenues by service offering. Schedule of Segment Reporting Information by Service Offering [Table Text Block] Schedule of revenues by service offering by reportable segment Schedule of Property, Plant and Equipment, Net by Segment. Schedule Of Property Plant And Equipment Net By Segment [Text Block] Capital Expenditures by Reportable Segment Reconciliation Of Assets From Segment To Consolidated [Text Block] Total Assets by Reportable Segment Schedule Of Earnings Per Share Basic And Diluted Table [Text Block] Computation of Basic and Diluted Net Earnings Per Share Schedule Of Property Plant And Equipment [Table] Property, Plant and Equipment [Table] Property, Plant and Equipment, Type [Axis] Property Plant And Equipment Type [Domain] Property, Plant and Equipment, Type [Domain] Machinery [Member] Machinery [Member] Machinery Furniture And Equipment [Member] Furniture And Equipment [Member] Furniture and equipment Range [Axis] Range [Member] Range [Domain] Minimum [Member] Minimum Maximum [Member] Maximum Property Plant And Equipment [Line Items] Property, Plant and Equipment [Line Items] Property Plant And Equipment Useful Life Property and equipment, useful lives (years) Property Plant And Equipment Gross Property and equipment, gross Depreciation Depreciation expense Related Party Transaction, Selling, General and Administrative Expenses from Transactions with Related Party Allocations for general corporate expenses, including management costs and corporate support services Employee Related Liabilities Current Accrued salaries, vacation and related benefits Accrued Bonuses, Current Accrued bonuses Accrual for Taxes Other than Income Taxes, Current Accrued property taxes Other Accrued Liabilities Current Other accrued liabilities Debt Instrument [Table] Schedule of Long-term Debt Instruments [Table] Debt Instrument [Axis] Debt Instrument Name [Domain] Debt Instrument, Name [Domain] Senior secured 11.5% notes due 2025. Senior Secured Notes Eleven Point Five Percent Due Twenty Twenty Five [Member] Senior Secured Notes 11.5 Percent Due 2025 Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Revolving Credit Facility [Member] Asset based revolving line of credit Debt Instrument [Line Items] Debt Instrument [Line Items] Debt Instrument Face Amount Principle amount Debt Instrument, Interest Rate, Stated Percentage Debt instrument, stated interest rate (as a percent) Debt Instrument Carrying Amount Senior secured notes, net Long-term Line of Credit Amount outstanding Line Of Credit Facility Maximum Borrowing Capacity Revolving credit facility Letters Of Credit Outstanding Amount Outstanding letter of credit amount Fair Value By Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Fair Value By Fair Value Hierarchy Level [Axis] Fair Value Measurements Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Fair Value Inputs Level2 [Member] Fair Value, Inputs, Level 2 Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Long Term Debt Fair Value Senior secured notes, fair value Lease Arrangement, Type [Axis] Lease Arrangement Type [Domain] Lease Arrangement, Type [Domain] Real Estate [Member] Real Estate Operating Leases Future Minimum Payments Due Future minimum lease payments Expected gain (loss) upon termination of distribution agreement. Expected Gain (Loss) on Distribution Agreement Expected gain on termination distribution agreement Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] Employee Stock Purchase Plan Member. Employee Stock Purchase Plan [Member] Employee Stock Purchase Plan Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Allocated Share Based Compensation Expense Share based compensation Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Unrecognized compensation cost Share Based Compensation Arrangement By Share Based Payment Award Discount From Market Price Purchase Date Qualified employees purchase of stock at a price equal to percentage of closing price Number of key executives receiving restricted stock awards during the period. Number of Key Executives Receiving Restricted Stock Awards Number of key executives receiving restricted stock awards during the period Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate Effective U.S. federal income tax rate Reconciliation Of Revenue From Segments To Consolidated [Table] Reconciliation of Revenue from Segments to Consolidated [Table] Segment Reporting Revenue Reconciling Item [Line Items] Segment Reporting, Revenue Reconciling Item [Line Items] Reportable Segments [Abstract] Number Of Reportable Segments Number of reportable segments Revenues [Abstract] Revenues Operating Income (Loss) [Abstract] Operating earnings (loss) Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments (Loss) earnings before income taxes Business Combination, Integration Related Costs Merger costs Schedule Of Segment Reporting Information By Segment [Table] Segment Reporting Information [Line Items] Reconciliation Of Assets From Segment To Consolidated [Table] Reconciliation of Assets from Segment to Consolidated [Table] Segment Reporting Asset Reconciling Item [Line Items] Segment Reporting, Asset Reconciling Item [Line Items] Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount Anti-dilutive securities excluded from determination of diluted earnings per common share Incremental Common Shares Attributable to Restricted Shares and Restricted Stock Units Incremental Common Shares Attributable To Restricted Shares And Restricted Stock Units Effect of dilutive securities - dilutive securities Number of shares received for each share of former parent entity at the distribution date. Number of Shares Received for Each Share of Former Parent Entity Number of shares received for each share of former parent entity Number of shares of former parent used in share distribution calculation. Number of Shares of Former Parent Used in Share Distribution Calculation Number of shares of former parent used in share distribution calculation Subsequent Event [Table] Subsequent Event [Table] Subsequent Event [Line Items] Subsequent Event [Line Items] Payments to Acquire Businesses, Gross Cash paid for acquisition Business Combination, Consideration Transferred, Equity Interests Issued and Issuable Equity interest payable Land And Building [Member] Land, buildings and improvements Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Selling General And Administrative Expenses [Member] Selling, general and administrative expenses Accelerated vesting of restricted stock due to sale of former Parent Company. Accelerated Vesting Sale Of Former Parent Company [Member] Accelerated Vesting, Sale of Former Parent Company Statement Business Segments [Axis] Segment [Domain] Segments [Domain]