Quarterly Financial (Unaudited) (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Operating Results
Revenues	$ 18,714,846	$ 16,994,858	$ 17,432,745	$ 17,695,568	$ 16,763,502	$ 14,555,908	$ 12,394,021	$ 9,602,779	$ 70,838,017	$ 53,316,210	$ 46,825,032
Gross profit	3,237,078	3,119,385	3,306,229	3,569,968	3,448,494	3,984,390	3,613,795	2,467,238	13,232,660	13,513,917	12,111,561
(Loss) income from operations	(1,333,984)	(1,631,776)	(1,401,464)	(1,094,737)	(1,034,182)	(879,839)	(1,233,765)	(1,503,222)	(5,461,961)	(4,651,008)	(1,175,294)
Net (loss) income	$ (1,135,940)	$ (1,763,280)	$ (1,409,628)	$ (1,157,759)	$ (902,993)	$ (5,901,696)	$ (669,239)	$ (926,698)	$ (5,466,607)	$ (8,400,626)	$ (1,694,785)
Basic EPS Computation:
Basic (in dollars per share)	$ (0.014)	$ (0.021)	$ (0.017)	$ (0.014)	$ (0.011)	$ (0.081)	$ (0.009)	$ (0.014)	$ (0.066)	$ (0.115)	$ (0.027)
Diluted (in dollars per share)	(0.014)	(0.021)	(0.017)	(0.014)	(0.011)	(0.081)	(0.009)	(0.014)	$ (0.066)	$ (0.115)	$ (0.027)
Maximum [Member]
Market price per share:
Market price per share	0.99	2.30	2.03	1.75	1.74	1.90	1.87	1.95
Minimum [Member]
Market price per share:
Market price per share	$ 0.64	$ 0.70	$ 1.29	$ 1.27	$ 0.99	$ 1.45	$ 1.28	$ 1.29