Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2021	Mar. 31, 2021
Statement of Financial Position [Abstract]
Preferred stock, par value	$ 1.00	$ 1.00
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.50	$ 0.50
Common stock, shares authorized	40,000,000	40,000,000
Common stock, shares issued	2,188,666	2,143,666
Common stock, shares outstanding	2,121,666	2,076,666
Treasury stock, shares	67,000	67,000