EMPLOYEE BENEFIT PLANS - Activity related to options under all plans (Details) - $ / shares	12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2021
Number of Shares
Balance, beginning of year	17,332	23,332	43,332
Options exercised	(1,511)	(6,000)	(20,000)
Options expired	(1,511)
Balance, end of year	14,310	17,332	23,332
Weighted Average Exercise Price
Balance, beginning of year	$ 2.78	$ 2.78	$ 2.69
Options exercised	2.78	2.78	2.58
Options expired	2.78
Balance, end of year	$ 2.78	$ 2.78	$ 2.78