PENSION BENEFIT PLANS - Net Periodic Pension Costs (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Retirement Benefits [Abstract]
Service cost	$ 55	$ 45	$ 159	$ 131
Interest cost	97	105	283	307
Net periodic pension cost	$ 152	$ 150	$ 442	$ 438