Note 10 - Stock Repurchase Program	9 Months Ended
Dec. 31, 2021
Notes to Financial Statements
Stock Repurchase Plan Disclosure [Text Block]	*NOTE 10.* STOCK REPURCHASE PROGRAM** On January 21, 2009 we announced that our Board of Directors authorized the repurchase of up to $2,500,000 of our Common Stock from time to time in open market, block, or privately negotiated transactions. The timing and extent of any repurchases depends on market conditions, the trading price of the company’s stock, and other factors, and subject to the restrictions relating to volume, price, and timing under applicable law. On August 27, 2015, we announced that our Board of Directors authorized up to $5,000,000 of additional repurchases. Our repurchase program does not have an expiration date and does not obligate us to purchase any shares. The Program may be modified or discontinued at any time without notice. We intend to finance any stock repurchases with cash provided by operating activities or maturating marketable securities. The remaining authorization was $3,762,040 as of December 31, 2021. We have not repurchased any of our Common Stock during fiscal 2022.

Note 10 - Stock Repurchase Program

9 Months Ended

Dec. 31, 2021

Stock Repurchase Plan Disclosure [Text Block]

NOTE 10. STOCK REPURCHASE PROGRAM

On January 21, 2009 we announced that our Board of Directors authorized the repurchase of up to $2,500,000 of our Common Stock from time to time in open market, block, or privately negotiated transactions. The timing and extent of any repurchases depends on market conditions, the trading price of the company’s stock, and other factors, and subject to the restrictions relating to volume, price, and timing under applicable law. On August 27, 2015, we announced that our Board of Directors authorized up to $5,000,000 of additional repurchases. Our repurchase program does not have an expiration date and does not obligate us to purchase any shares. The Program may be modified or discontinued at any time without notice. We intend to finance any stock repurchases with cash provided by operating activities or maturating marketable securities. The remaining authorization was $3,762,040 as of December 31, 2021. We have not repurchased any of our Common Stock during fiscal 2022.