OPERATING AND FINANCE LEASE OBLIGATIONS (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Operating lease expense
Cost of revenues	$ 2,865,785	$ 3,520,623	$ 6,058,183	$ 7,088,148
Selling, general and administrative expenses	1,261,878	820,052	2,396,936	2,410,307
Accounting Standards Update 2016-02 (842)
Operating lease expense
Cost of revenues	67,998	65,025	135,748	128,601
Selling, general and administrative expenses	22,033	25,006	44,313	49,997
Total operating lease expense	90,031	90,031	180,061	178,598
Finance lease expense
Interest expense	$ 6,267	$ 6,149	$ 12,151	$ 11,469