CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Income Statement [Abstract]
Revenue	$ 31,930,550	$ 46,157,414	$ 115,840,966	$ 138,771,985
Cost of revenue	27,904,006	42,562,397	103,180,609	128,036,082
Gross profit	4,026,544	3,595,017	12,660,357	10,735,903
Operating expenses:
Selling, general, and administrative	3,977,662	4,923,283	13,539,654	14,215,944
Depreciation and amortization	1,002,687	1,013,225	2,999,747	3,039,653
Total operating expenses	4,980,349	5,936,508	16,539,401	17,255,597
Operating loss	(953,805)	(2,341,491)	(3,879,044)	(6,519,694)
Other expense:
Interest expense	(126,507)	(62,345)	(361,273)	(176,207)
Total other expense	(126,507)	(62,345)	(361,273)	(176,207)
Loss before taxes	(1,080,312)	(2,403,836)	(4,240,317)	(6,695,901)
Net loss	(1,080,312)	(2,403,836)	(4,240,317)	(6,695,901)
Net loss applicable to common stockholders	$ (1,080,312)	$ (2,403,836)	$ (4,240,317)	$ (6,695,901)
Net loss per share
Basic and diluted	$ (0.07)	$ (0.16)	$ (0.28)	$ (0.46)
Weighted average number of common shares outstanding
Basic and diluted	15,281,324	14,853,675	15,276,741	14,559,874