Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2023	Mar. 31, 2023
Allowance for expected credit losses	$ 723	$ 610
Common stock, stated value	$ 0.3	$ 0.3
Common stock, shares authorized	80,000,000	80,000,000
Common stock, shares issued	31,606,831	31,606,831
Common stock, shares outstanding	25,370,482	25,326,626
Treasury shares	6,236,349	6,280,205