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EARNINGS PER SHARE - Additional information (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Jun. 30, 2021
EARNINGS PER SHARE
Antidilutive securities excluded from computation of earnings per share, amount	0	0	0	0
Stock repurchased	$ (1,231)		$ (1,724)	$ (1,447)
Repurchase program
EARNINGS PER SHARE
Maximum shares repurchase amount	$ 5,000		5,000		$ 5,000
Stock repurchased			$ (1,700)
Shares repurchased			249,908	500,000
Average price			$ 6.89	$ 4.89