REVENUE - Disaggregated basis (Details) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Revenue from Contract with Customer, Including Assessed Tax	$ 3,667,276	$ 4,270,396	$ 11,075,620	$ 11,990,404
Over-time
Revenue from Contract with Customer, Including Assessed Tax	3,439,367	4,086,713	9,104,395	11,314,599
Point-in-time
Revenue from Contract with Customer, Including Assessed Tax	227,909	183,683	1,971,225	675,805
Defense
Revenue from Contract with Customer, Including Assessed Tax	3,200,671	4,196,944	9,725,635	11,507,854
Energy
Revenue from Contract with Customer, Including Assessed Tax	373,357	33,790	450,914	267,794
Industrial
Revenue from Contract with Customer, Including Assessed Tax	$ 93,248	$ 39,662	$ 899,071	$ 214,756