Equity Components [Axis] Common Stock [Member] Additional Paid-in Capital [Member] Retained Earnings [Member] Treasury Stock [Member] Fair Value Hierarchy and NAV [Axis] Fair Value, Inputs, Level 1 [Member] Fair Value, Inputs, Level 2 [Member] Fair Value, Inputs, Level 3 [Member] Product and Service [Axis] Fluxing Systems [Member] In-Line Coating Systems [Member] Multi-Axis Coating Systems [Member] OEM Systems [Member] Spare Parts, Services and Other [Member] Total [Member] Plan Name [Axis] 2023 Stock Incentive Plan [Member] 2013 Stock Incentive Plan [Member] Award Type [Axis] Share-Based Payment Arrangement, Option [Member] Non Employee [Member] Credit Facility [Axis] Revolving Credit Facility [Member] Equipment line of credit [Member] Geographical [Axis] Asia Pacific [Member] EMEA [Member] Latin America [Member] Concentration Risk Type [Axis] Foreign Customers [Member] Concentration Risk Benchmark [Axis] Revenue Benchmark [Member] Customer Concentration Risk [Member] Customer [Axis] Two Customer [Member] Accounts Receivable [Member] One Customer [Member] Three Customer [Member] Subsegments [Axis] Operating Segment [Member] Cover [Abstract] Document Type Amendment Flag Amendment Description Document Registration Statement Document Annual Report Document Quarterly Report Document Transition Report Document Shell Company Report Document Shell Company Event Date Document Period Start Date Document Period End Date Document Fiscal Period Focus Document Fiscal Year Focus Current Fiscal Year End Date Entity File Number Entity Registrant Name Entity Central Index Key Entity Primary SIC Number Entity Tax Identification Number Entity Incorporation, State or Country Code Entity Address, Address Line One Entity Address, Address Line Two Entity Address, Address Line Three Entity Address, City or Town Entity Address, State or Province Entity Address, Country Entity Address, Postal Zip Code Country Region City Area Code Local Phone Number Extension Written Communications Soliciting Material Pre-commencement Tender Offer Pre-commencement Issuer Tender Offer Title of 12(b) Security No Trading Symbol Flag Trading Symbol Security Exchange Name Title of 12(g) Security Security Reporting Obligation Annual Information Form Audited Annual Financial Statements Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Small Business Entity Emerging Growth Company Elected Not To Use the Extended Transition Period Document Accounting Standard Other Reporting Standard Item Number Entity Shell Company Entity Public Float Entity Bankruptcy Proceedings, Reporting Current Entity Common Stock, Shares Outstanding Documents Incorporated by Reference [Text Block] Statement of Financial Position [Abstract] ASSETS Current Assets: Cash and cash equivalents Marketable securities Accounts receivable (less allowance of $12,225, respectively) Inventories Prepaid expenses and other current assets Total current assets Land Buildings, equipment, furnishings and leasehold improvements, net Intangible assets, net Deferred tax asset TOTAL ASSETS LIABILITIES AND STOCKHOLDERS’ EQUITY Current Liabilities: Accounts payable Accrued expenses Customer deposits Income taxes payable Total current liabilities Deferred tax liability Total liabilities Commitments and Contingencies (Note 10) Stockholders’ Equity Common stock, $.01 par value; 25,000,000 shares authorized, 15,716,723 and 15,710,389 issued and outstanding as of May 31, 2026 and February 28, 2026 Additional paid-in capital Accumulated earnings Total stockholders’ equity TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY Allowance for doubtful receivables Common stock, par value Common stock, shares authorized Common stock, shares issued Common stock, shares outstanding Income Statement [Abstract] Net Sales Cost of Goods Sold Gross Profit Operating Expenses Research and product development costs Marketing and selling expenses General and administrative costs Total Operating Expenses Operating Income Interest and Dividend Income Net unrealized (loss) on marketable securities Income Before Income Taxes Income Tax Expense Net Income Basic Earnings Per Share Diluted Earnings Per Share Weighted Average Shares - Basic Weighted Average Shares - Diluted Statement [Table] Statement [Line Items] Balance - February 28, 2025 Beginning balance, shares Stock-based compensation expense Treasury Stock Cashless exercise of stock options Cashless exercise of stock options, shares Proceeds from exercise of stock options Proceeds from exercise of stock options, shares Net Income Balance – May 31, 2025 (unaudited) Ending balance, shares Statement of Cash Flows [Abstract] CASH FLOWS FROM OPERATING ACTIVITIES: Net Income Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization Stock-based compensation expense Inventory write-off Unrealized loss on marketable securities Deferred income tax benefit, net (Increase) Decrease in: Accounts receivable Inventories Prepaid expenses and other assets Accounts payable Accrued expenses Customer deposits Income taxes payable Net Cash Provided by (Used in) Operating Activities CASH FLOWS FROM INVESTING ACTIVITIES: Purchase of equipment, furnishings and leasehold improvements Sale of marketable securities Purchase of marketable securities Net Cash (Used in) Provided by Investing Activities CASH FLOWS FROM FINANCING ACTIVITIES: Proceeds from exercise of stock options Purchase of treasury stock Net Cash Provided by (Used in) Financing Activities NET INCREASE/(DECREASE) IN CASH AND CASH EQUIVALENTS CASH AND CASH EQUIVALENTS: Beginning of period End of period Supplemental Cash Flow Disclosure: Interest Paid Income Taxes Paid Accounting Policies [Abstract] BUSINESS DESCRIPTION SIGNIFICANT ACCOUNTING POLICIES Revenue from Contract with Customer [Abstract] REVENUE RECOGNITION Inventory Disclosure [Abstract] INVENTORIES Equity [Abstract] STOCK BASED COMPENSATION Earnings Per Share [Abstract] EARNINGS PER SHARE Debt Disclosure [Abstract] REVOLVING LINE OF CREDIT Risks and Uncertainties [Abstract] CUSTOMER CONCENTRATIONS AND FOREIGN SALES Segment Reporting [Abstract] SEGMENT DATA Commitments and Contingencies Disclosure [Abstract] COMMITMENTS AND CONTINGENCIES Insider Trading Arrangements [Line Items] Rule 10b5-1 Arrangement Adopted [Flag] Non-Rule 10b5-1 Arrangement Adopted [Flag] Rule 10b5-1 Arrangement Terminated [Flag] Non-Rule 10b5-1 Arrangement Terminated [Flag] Cash and Cash Equivalents Consolidation Fair Value of Financial Instruments Income Taxes Inventories Land and Buildings Management Estimates Recent Accounting Pronouncements Not Yet Adopted Product Warranty Revenue Recognition Stock-Based Compensation Schedule of significant accounting policies - fair values of financial assets of the company Schedule of revenue recognition - sales revenue by product line Schedule of inventory, current Schedule of weighted-average black-scholes assumptions Schedule of computation of basic and diluted earnings per share Schedule of customer concentrations and foreign sales Schedule of segment data Defined Benefit Plan [Table] Defined Benefit Plan Disclosure [Line Items] Marketable Securities Bank deposits exceeding the FDIC insured limit Marketable securities Accruals for uncertain tax positions Disaggregation of Revenue [Table] Disaggregation of Revenue [Line Items] Sales revenue Sales revenue, percent Cash deposits Revenue recognized Raw materials and subassemblies Finished goods Work in process Total Allowance for slow moving inventory Expected life (in years) Risk free interest rate Expected volatility Expected dividend yield Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Stock options shares available for grants Stock options, outstanding Options granted Options, exercisable price Average grant date fair value, per share Stock-based compensation expense Stock option non-vested Options vested and exercisable aggregate intrinsic value Numerator for basic and diluted earnings per share Denominator for basic earnings per share - weighted average Effects of dilutive securities: Stock options for employees and directors Denominator for diluted earnings per share Anti-dilutive shares Line of Credit Facility [Table] Line of Credit Facility [Line Items] Revolving line of credit Interest rate Revolving credit line description Revolving line of credit, outstanding borrowings Outstanding borrowings under the line of credit Total sales Concentration Risk [Table] Concentration Risk [Line Items] Concentration percentage Segment Reporting [Table] Segment Reporting [Line Items] Direct cost of goods sold materials & freight Direct cost of goods sold production labor Direct cost of goods sold depreciation Direct cost of goods sold other Direct cost of goods sold Service department salaries Service department travel Service department outside installations Service department warranty costs Service department other Service department Total cost of goods & service Gross profit Research & product development salaries Research & product development insurance Research & product development depreciation Research & product development r & d materials Research & product development other Research & product development Marketing and selling salaries Marketing and selling Insurance Marketing and selling commissions Marketing and selling travel & entertainment Marketing and selling salaries advertising trade show Marketing and selling salaries depreciation Marketing and selling salaries other Marketing and selling General and administrative salaries General and administrative insurance General and administrative professional fees General and administrative corporate expenses General and administrative stock based compensation General and administrative depreciation General and administrative depreciation misc other General and administrative Total Operating Expenses Operating Income Interest Income & Unrealized Gain Income Before Taxes Percent of Sales Revenue Multi-Axis Coating Systems OEM Systems Total Product Line 2013 Stock Incentive Plan ("2013 Plan") Foreign Customers Assets, Current Assets Liabilities, Current Liabilities Equity, Attributable to Parent Liabilities and Equity Shares, Outstanding Stock or Unit Option Plan Expense Increase (Decrease) in Accounts Receivable Increase (Decrease) in Inventories Increase (Decrease) in Prepaid Expense and Other Assets Increase (Decrease) in Accounts Payable Increase (Decrease) in Accrued Liabilities Increase (Decrease) in Contract with Customer, Liability Increase (Decrease) in Accrued Taxes Payable Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Payments to Acquire Property, Plant, and Equipment Payments to Acquire Marketable Securities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Proceeds from Stock Options Exercised Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Inventory, Policy [Policy Text Block] Inventory, Net Share-Based Payment Arrangement, Noncash Expense