| Note 10 - Shareholders' Equity | 12 Months Ended | 
|---|---|
| Mar. 29, 2020 | |
| Notes to Financial Statements | |
| Stockholders' Equity Note Disclosure [Text Block] | Note  10 – S hare holders’ Equity Dividends:The holders of shares of the Company’s common stock are entitled to receive dividends when and as declared by the Board. Aggregate cash dividends of $0.57and $0.32per share, amounting to $5.8million and $3.2million, were declared during fiscal years 2020and 2019,respectively. Cash dividends declared during fiscal year 2020included a special cash dividend of $0.25per share. The Company’s financing agreement with CIT permits the payment by the Company of cash dividends on its common stock without limitation, provided there is nodefault before or as a result of the payment of such dividends. Stock Repurchases: 12,000treasury shares during the fiscal year ended  March 29, 2020 at a weighted-average market value of $6.63per share and acquired 16,000treasury shares during the fiscal year ended  March 31, 2019 at a weighted-average market value of $5.87per share. | 
| X | ||||||||||
| 
- References No definition available. 
 | 
| X | ||||||||||
| 
- Definition The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
 |