Consolidated Statement of Stockholders' Equity (Unaudited) - 6 months ended Jun. 30, 2017 - USD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Total
Balance at Dec. 31, 2016	$ 10,719	$ 117,293,158	$ (104,368,426)	$ 12,935,451
Balance, shares at Dec. 31, 2016	10,718,553
Cumulative adjustment upon modified retrospective adoption of ASU 2016-09 at Jun. 30, 2017		33,894	(33,894)
Balance after adoption of recent accounting pronouncement at Dec. 31, 2016	10,719	117,327,052	(104,402,320)	12,935,451
Balance after adoption of recent accounting pronouncement, shares at Dec. 31, 2016	10,718,553
Stock-based compensation expense		191,518		191,518
Exercise of stock options	$ 10	10,090		10,100
Exercise of stock options, shares	10,000
Exercise of warrants	$ 62	137,438		137,500
Exercise of warrants, shares	62,500
Vesting of restricted stock	$ 17	(17)
Vesting of restricted stock, shares	16,974
Net loss			(2,035,310)	(2,035,310)
Balance at Jun. 30, 2017	$ 10,808	$ 117,666,081	$ (106,437,630)	$ 11,239,259
Balance, shares at Jun. 30, 2017	10,808,027