Consolidated Balance Sheets (Parentheticals) - USD ($) shares in Thousands, $ in Thousands	Mar. 31, 2025	Mar. 31, 2024
Statement of Financial Position [Abstract]
Allowance For Credit Loss	$ 2	$ 0
Preferred stock, no par value (in dollars per share)	$ 0	$ 0
Preferred stock, shares authorized	5,000	5,000
Preferred stock, shares issued	0	0
Common stock, par value	$ 0.01	$ 0
Common stock, shares authorized	50,000	50,000
Common stock, shares issued	12,674	12,657
Common stock, shares outstanding	6,696	7,289
Treasury stock, common shares	6,020	5,368