Consolidated Statements of Shareholders' Equity (Deficit) - USD ($)	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Deficit [Member]	Total
Beginning balance at Dec. 31, 2014		$ 11,200	$ 74,600,700	$ (76,205,800)
Beginning balance, shares at Dec. 31, 2014		7,502,814
Private placement of stock and warrants
Private placement of stock and warrants, shares		2,105,919
Employee stock option issuances
Employee stock option issuances, shares		6,000
Vesting of restricted stock awards		$ 200
Vesting of restricted stock awards, shares		116,500
Par value of shares issued in private placement		$ 3,200
Stock-based compensation expense			757,500
Company payment of employee taxes for stock-based compensation			(11,900)
Proceeds from exercise of employee stock options			4,900
Proceeds from private placement of common stock and warrants, net of par value of shares issued			2,547,300
Cost of private placement of common stock and warrants			(116,400)
Reclassification of warrants liability to equity (2014 PIPE)			407,300
Other Rounding			(100)
Net loss				(4,391,100)	(4,391,100)
Ending balance at Dec. 31, 2015		$ 14,600	78,189,300	(80,596,900)	(2,393,000)
Ending balance, shares at Dec. 31, 2015		9,731,233
Private placement of stock and warrants
Private placement of stock and warrants, shares
Employee stock option issuances
Employee stock option issuances, shares		1,800
Vesting of restricted stock awards		$ 100
Vesting of restricted stock awards, shares		71,429
Par value of shares issued in private placement
Stock-based compensation expense			324,400
Company payment of employee taxes for stock-based compensation			(2,700)
Proceeds from exercise of employee stock options			1,500
Proceeds from private placement of common stock and warrants, net of par value of shares issued
Cost of private placement of common stock and warrants
Reclassification of warrants liability to equity (2014 PIPE)
Other Rounding			(300)
Net loss				(1,852,900)	(1,852,900)
Ending balance at Dec. 31, 2016		$ 14,700	$ 78,491,300	$ (82,449,800)	$ (3,922,900)
Ending balance, shares at Dec. 31, 2016		9,804,462