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EARNINGS PER SHARE - Additional information (Details) - USD ($)			1 Months Ended	6 Months Ended	12 Months Ended
	Dec. 20, 2021	Apr. 17, 2020	Mar. 31, 2022	Dec. 20, 2021	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020	Jun. 30, 2021	Feb. 29, 2020
EARNINGS PER SHARE
Antidilutive securities excluded from computation of earnings per share, amount					0	0	0
Stock repurchased					$ 1,940,000	$ 1,447,000	$ 1,019,000
Repurchase program
EARNINGS PER SHARE
Maximum number of common shares to be repurchased									500,000
Maximum shares repurchase amount			$ 5,000,000.0		$ 5,000,000.0			$ 5,000,000.0
Stock repurchased			$ 216,000	$ 1,700,000
Shares repurchased		295,900					204,100
Average price	$ 6.89	$ 4.85	$ 7.63				$ 4.94