CONTRACT ASSETS AND CONTRACT LIABILITIES (Details) - USD ($)	Mar. 31, 2018	Jan. 02, 2018	Dec. 31, 2017	[1]
Operating Leased Assets [Line Items]
Contract assets	$ 114,023,576		$ 111,158,551
Contract liabilities	(281,528)	$ (146,270)	(246,330)
Net contract assets (liabilities)	113,742,048		110,912,221
US Government [Member]
Operating Leased Assets [Line Items]
Contract assets	57,248,632		54,591,601
Contract liabilities	(226,712)		(224,339)
Net contract assets (liabilities)	57,021,920		54,367,262
Commercial [Member]
Operating Leased Assets [Line Items]
Contract assets	56,774,944		56,566,950
Contract liabilities	(54,816)		(21,991)
Net contract assets (liabilities)	$ 56,720,128		$ 56,544,959

[1] On January 1, 2018, as a result of the adoption of ASC 606, the Company reclassified costs and estimated earnings in excess of billings on uncompleted contracts to contract assets and billings in excess of costs and estimated earnings on uncompleted contracts to contract liabilities.