CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Income Statement [Abstract]
Revenue	$ 41,370,594	$ 46,843,675	$ 83,910,416	$ 92,614,571
Cost of revenue	36,922,533	43,189,149	75,276,603	85,473,685
Gross profit	4,448,061	3,654,526	8,633,813	7,140,886
Operating expenses:
Selling, general, and administrative	4,581,897	4,637,498	9,561,992	9,292,661
Depreciation and amortization	996,326	1,007,864	1,997,060	2,026,428
Total operating expenses	5,578,223	5,645,362	11,559,052	11,319,089
Operating loss	(1,130,162)	(1,990,836)	(2,925,239)	(4,178,203)
Other expense:
Interest expense	(120,491)	(57,274)	(234,766)	(113,862)
Total other expense	(120,491)	(57,274)	(234,766)	(113,862)
Loss before taxes	(1,250,653)	(2,048,110)	(3,160,005)	(4,292,065)
Net loss	(1,250,653)	(2,048,110)	(3,160,005)	(4,292,065)
Net loss applicable to common stockholders	$ (1,250,653)	$ (2,048,110)	$ (3,160,005)	$ (4,292,065)
Net loss per share
Basic and diluted	$ (0.08)	$ (0.14)	$ (0.21)	$ (0.30)
Weighted average number of common shares outstanding
Basic and diluted	15,276,228	14,839,591	15,274,412	14,408,890