CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)	Total	Common Stock	Additional Paid in Capital	Accumulated Deficit	Treasury Stock
Beginning Balance, Shares at Dec. 31, 2013		23,386,780
Beginning Balance, Amount at Dec. 31, 2013	$ 5,341,866	$ 23,763	$ 127,908,328	$ (121,193,666)	$ (1,396,559)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	2,105,114			2,105,114
Stock-based compensation	991,948		991,948
Stock issued for vested restricted stock awards (in shares)		324,320
Stock issued for vested restricted stock awards	0	$ 324	(324)
Taxes withheld on vested restricted stock	(165,193)		(165,193)
Ending Balance, Shares at Dec. 31, 2014		23,711,100
Ending Balance, Amount at Dec. 31, 2014	8,273,735	$ 24,087	128,734,759	(119,088,552)	(1,396,559)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	2,339,774			2,339,774
Stock-based compensation	707,544		707,544
Stock issued for vested restricted stock awards (in shares)		664,781
Stock issued for vested restricted stock awards	(109,527)	$ 665	(110,192)
Taxes withheld on vested restricted stock	(251,082)		(251,082)
Ending Balance, Shares at Dec. 31, 2015		24,375,881
Ending Balance, Amount at Dec. 31, 2015	$ 10,960,444	$ 24,752	$ 129,081,029	$ (116,748,778)	$ (1,396,559)