CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)	Total	Common Stock	Additional Paid in Capital	Accumulated Deficit	Treasury Stock
Beginning Balance (in shares) at Dec. 31, 2017		28,618,580
Beginning Balance at Dec. 31, 2017	$ 14,087,342	$ 28,996	$ 136,033,967	$ (120,579,062)	$ (1,396,559)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(1,408,024)			(1,408,024)
Stock-based compensation	377,847		377,847
Stock issued for vested restricted stock awards (in shares)		178,618
Stock issued for vested restricted stock awards	0	$ 178	(178)
Ending Balance (in shares) at Mar. 31, 2018		28,797,198
Ending Balance at Mar. 31, 2018	13,057,165	$ 29,174	136,411,636	(121,987,086)	(1,396,559)
Beginning Balance (in shares) at Dec. 31, 2018		32,381,290
Beginning Balance at Dec. 31, 2018	11,033,815	$ 32,759	138,867,509	(126,469,894)	(1,396,559)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(2,462,393)
Stock-based compensation	96,871		96,871
Stock issued for vested restricted stock awards (in shares)		186,031
Stock issued for vested restricted stock awards	0	$ 186	(186)
Ending Balance (in shares) at Mar. 31, 2019		32,567,321
Ending Balance at Mar. 31, 2019	$ 8,668,293	$ 32,945	$ 138,964,194	$ (128,932,287)	$ (1,396,559)