CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Statement [Abstract]
Revenue	$ 21,969,241	$ 25,445,373	$ 47,301,055	$ 52,094,414
Cost of revenue	17,594,606	20,695,798	38,383,422	42,801,994
Gross profit	4,374,635	4,749,575	8,917,633	9,292,420
Operating expenses:
Selling, general, and administrative	3,977,853	4,226,912	8,387,176	8,441,142
Depreciation and amortization	334,137	327,093	667,890	652,880
Total operating expenses	4,311,990	4,554,005	9,055,066	9,094,022
Operating income (loss)	62,645	195,570	(137,433)	198,398
Other income	1,258,068		1,258,068
Interest expense	87,224	113,697	171,545	225,508
Income (loss) before taxes	1,233,489	81,873	949,090	(27,110)
Income tax expense (benefit)	24,486	54,771	(28,246)	109,540
Net income (loss)	1,209,003	27,102	977,336	(136,650)
Net income (loss) applicable to common stockholders	$ 1,209,003	$ 27,102	$ 977,336	$ (136,650)
Net income (loss) per share applicable to common stockholders
Basic	$ 0.08	$ 0.00	$ 0.06	$ (0.01)
Diluted	$ 0.08	$ 0.00	$ 0.06	$ (0.01)
Weighted average number of common shares outstanding
Basic	15,464,604	15,339,743	15,430,653	15,334,397
Diluted	15,467,818	15,362,406	15,440,903	15,334,397