COSTS INCURRED ON UNCOMPLETED CONTRACTS (Details) - USD ($)	3 Months Ended								12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Cost incurred on uncompleted contracts
Cost incurred on uncompleted contracts, beginning balance				$ 5,491,605				$ 4,068,488	$ 5,491,605	$ 4,068,488
Total cost incurred on contracts during the year									12,501,752	12,783,323
Less cost of sales, during the year									(12,454,542)	(11,360,206)
Cost incurred on uncompleted contracts, ending balance	$ 5,538,815				$ 5,491,605				5,538,815	5,491,605
Billings on uncompleted contracts
Billings on uncompleted contracts, beginning balance				3,095,963				2,060,244	3,095,963	2,060,244
Plus: Total billings incurred on contracts, during the year									18,896,305	17,889,671
Less: Contracts recognized as revenue, during the year	(4,931,000)	$ (5,319,000)	$ (3,656,000)	(4,644,000)	(4,869,000)	$ (3,507,000)	$ (4,103,000)	(4,374,000)	(18,550,674)	(16,853,952)
Billings on uncompleted contracts, ending balance	3,441,594				3,095,963				3,441,594	3,095,963
Cost incurred on uncompleted contracts
Cost incurred on uncompleted contracts, ending balance	5,538,815			5,491,605	5,491,605			4,068,488	5,491,605	5,491,605	$ 5,538,815	$ 5,491,605
Billings on uncompleted contracts, ending balance	$ 3,441,594			$ 3,095,963	$ 3,095,963			$ 2,060,244	$ 3,095,963	$ 3,095,963	3,441,594	3,095,963
Costs incurred on uncompleted contracts, in excess of progress billings											2,097,221	2,395,642
Billings in excess of costs											$ 642,831	$ 1,629,018