Note 1 - Summary of Significant Accounting Policies (Details Textual) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Aug. 29, 2025 |
Mar. 31, 2026 |
Mar. 31, 2025 |
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| Accounts Receivable, Allowance for Credit Loss | $ 400 | $ 100 | |
| Interest Paid, Including Capitalized Interest, Operating and Investing Activities | 3,900 | 3,000 | |
| Proceeds from Income Tax Refunds | $ 6,700 | 3,200 | |
| Unrecognized Tax Benefits, Ending Balance | $ 0 | ||
| Customer Concentration Risk [Member] | Revenue, Product and Service Benchmark [Member] | O'Neal Steel [Member] | |||
| Concentration Risk, Percentage | 15.00% | 16.00% | |
| Century Metals and Supplies [Member] | |||
| Notes Issued | $ 3,500 | ||
| Liabilities Assumed | 2,200 | ||
| Business Combination, Consideration Transferred, Working Capital | $ 1,100 | $ 1,100 | |
| X | ||||||||||
- Definition Amount of working capital transferred by the acquirer as part of consideration transferred in business combination. Includes, but is not limited to, business or subsidiary, or both, of acquirer transferred to former owner of acquiree. No definition available.
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- Definition Amount of allowance for credit loss on accounts receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of cash paid for interest, including, but not limited to, capitalized interest and payment to settle zero-coupon bond attributable to accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount; classified as operating and investing activities. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The fair value of liabilities assumed in noncash investing or financing activities. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The fair value of notes issued in noncash investing and financing activities. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of income tax refund received from tax jurisdiction. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of unrecognized tax benefits. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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