Condensed Consolidated Statements of Stockholders' Equity - USD ($)	Common Stock	Additional Paid In Capital	Accumulated Deficit	Total
Beginning Balance, Amount at Dec. 31, 2017	$ 152,865	$ 40,265,282	$ (37,246,561)	$ 3,171,586
Beginning Balance, Shares at Dec. 31, 2017	15,286,540
Net income (loss)			358,878	358,878
Stock option exercise, Amount	$ 5,913	146,550		152,463
Stock option exercise, Shares	591,250
Stock based compensation		33,798		33,798
Ending Balance, Amount at Mar. 31, 2018	$ 158,778	40,445,630	(36,887,683)	3,716,725
Ending Balance, Shares at Mar. 31, 2018	15,877,790
Beginning Balance, Amount at Dec. 31, 2018	$ 161,247	41,035,936	(37,320,838)	3,876,345
Beginning Balance, Shares at Dec. 31, 2018	16,124,681
Net income (loss)			(1,121,118)	(1,121,118)
Stock option exercise, Amount	$ 375	4,725		5,100
Stock option exercise, Shares	37,500
Stock based compensation		175,012		175,012
Ending Balance, Amount at Mar. 31, 2019	$ 161,622	$ 41,215,673	$ (38,441,956)	$ 2,935,339
Ending Balance, Shares at Mar. 31, 2019	16,162,181