CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Income Statement [Abstract]
Revenue	$ 25,920,215	$ 31,930,550	$ 78,544,764	$ 115,840,966
Cost of revenue	21,449,658	27,904,006	66,098,602	103,180,609
Gross profit	4,470,557	4,026,544	12,446,162	12,660,357
Operating expenses:
Selling, general, and administrative	4,638,585	3,977,662	12,269,625	13,539,654
Depreciation and amortization	406,726	1,002,687	2,372,916	2,999,747
Total operating expenses	5,045,311	4,980,349	14,642,541	16,539,401
Operating loss	(574,754)	(953,805)	(2,196,379)	(3,879,044)
Other expense:
Interest expense	(106,140)	(126,507)	(335,576)	(361,273)
Total other expense	(106,140)	(126,507)	(335,576)	(361,273)
Loss before taxes	(680,894)	(1,080,312)	(2,531,955)	(4,240,317)
Net loss	(680,894)	(1,080,312)	(2,531,955)	(4,240,317)
Net loss applicable to common stockholders	$ (680,894)	$ (1,080,312)	$ (2,531,955)	$ (4,240,317)
Net loss per share
Basic and diluted	$ (0.04)	$ (0.07)	$ (0.17)	$ (0.28)
Weighted average number of common shares outstanding
Basic and diluted	15,313,383	15,281,324	15,307,939	15,276,741