Condensed Consolidated Statements of Income (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Income Statement [Abstract]
Revenue	$ 4,765,361	$ 4,446,540	$ 14,764,577	$ 11,865,648
Operating costs and expenses
Cost of revenue	1,665,774	1,716,740	5,407,389	4,388,860
Selling, general and administrative expenses	1,866,833	1,102,373	4,991,481	3,837,218
Depreciation and amortization expense	942,473	907,837	2,820,183	2,745,232
Total operating costs and expenses	4,475,080	3,726,950	13,219,053	10,971,310
Operating income	290,281	719,590	1,545,524	894,338
Other income (expense)
Interest income	113,555	90,959	305,694	255,327
Interest expense	(178,642)	(224,510)	(552,692)	(698,638)
Other income				43,669
Loss on sale of assets				12,167
Total other expense	(65,087)	(133,551)	(246,998)	(387,475)
Net income	$ 225,194	$ 586,039	$ 1,298,526	$ 506,863
Basic income earnings per common share	$ 0.01	$ 0.02	$ 0.05	$ 0.02
Basic weighted average common shares outstanding	24,542,551	24,261,272	24,537,647	24,218,477
Diluted income per common share	$ 0.01	$ 0.02	$ 0.05	$ 0.02
Diluted weighted average common shares outstanding	25,162,445	24,261,272	25,156,629	24,218,477