Note 2 - Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Jun. 30, 2026	Jun. 30, 2025
Numerator:
Net (loss)	$ (566)	$ (1,140)
Weighted average shares outstanding
Basic (in shares)	21,042,652	21,042,652
Net (loss) per share:
Basic (loss) per share (in dollars per share)	$ (0.03)	$ (0.05)