Note 14 - Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Dec. 31, 2025	Sep. 30, 2025	Jun. 30, 2025	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2025	Dec. 31, 2024
Net earnings	$ 3,043	$ 2,240	$ 5,028	$ (1,152)	$ (675)	$ 2,567	$ 10,311	$ 740
Less: Allocation to unvested restricted stock awards	55			1			154	3
Net earnings (loss) attributable to common shareholders	$ 2,988			$ (1,153)			$ 10,157	$ 737
Weighted average common shares outstanding (in shares)	6,965,880			6,948,023			6,965,880	6,942,216