CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY - 3 months ended Mar. 31, 2019 - USD ($)	Total	Common Stock	Treasury Stock	Additional paid-in capital	Accumulated deficit
Beginning balance (in shares) at Dec. 31, 2018	38,966,988	38,966,988	(12,253,502)
Beginning balance at Dec. 31, 2018	$ 42,451,169	$ 38,967	$ (18,929,915)	$ 94,385,230	$ (33,043,113)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	309,563			309,563
Net loss	$ (2,175,258)				(2,175,258)
Ending balance (in shares) at Mar. 31, 2019	38,966,988	38,966,988	(12,253,502)
Ending balance at Mar. 31, 2019	$ 40,585,474	$ 38,967	$ (18,929,915)	$ 94,694,793	$ (35,218,371)