Condensed Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Income Statement [Abstract]
Revenue	$ 5,398,923	$ 4,049,497	$ 9,999,216	$ 7,419,109
Operating costs and expenses
Cost of revenue	1,942,671	1,491,383	3,741,615	2,672,116
Selling, general and administrative expenses	1,426,985	1,237,335	3,124,648	2,734,852
Depreciation and amortization expense	941,683	899,373	1,877,710	1,837,395
Total operating costs and expenses	4,311,339	3,628,091	8,743,973	7,244,363
Operating income	1,087,584	421,406	1,255,243	174,746
Other income (expense)
Interest income	99,711	82,509	192,139	164,368
Interest expense	(182,497)	(215,103)	(374,050)	(474,128)
Other income				43,669
Loss on sale of assets		17,995		12,167
Total other expense	(82,786)	(114,599)	(181,911)	(253,924)
Net income (loss)	$ 1,004,798	$ 306,807	$ 1,073,332	$ (79,178)
Basic income earnings per common share	$ 0.04	$ 0.01	$ 0.04	$ 0.00
Basic weighted average common shares outstanding	24,535,155	24,197,148	24,535,155	24,196,726
Diluted income per common share	$ 0.04	$ 0.01	$ 0.04	$ 0.00
Diluted weighted average common shares outstanding	25,140,467	24,197,148	25,140,467	24,196,726