REVENUE - disaggregated basis (Details) - USD ($)	3 Months Ended	9 Months Ended
	Dec. 31, 2018	Dec. 31, 2018
Revenue from Contract with Customer, Including Assessed Tax	$ 4,270,396	$ 11,990,404
Over-time [Member]
Revenue from Contract with Customer, Including Assessed Tax	4,086,713	11,314,849
Point-in-time [Member]
Revenue from Contract with Customer, Including Assessed Tax	183,683	675,555
Defense [Member]
Revenue from Contract with Customer, Including Assessed Tax	3,890,782	11,009,204
Energy [Member]
Revenue from Contract with Customer, Including Assessed Tax	371,864	798,356
Industrial [Member]
Revenue from Contract with Customer, Including Assessed Tax	$ 7,750	$ 182,844