Condensed Consolidated Statements of Stockholders' Equity (Deficit) (Unaudited) - USD ($)	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Deficit [Member]	Total
Beginning balance at Dec. 31, 2015		$ 14,600	$ 78,189,300	$ (80,596,900)
Beginning balance, shares at Dec. 31, 2015		9,731,233
Vesting of restricted stock awards
Vesting of restricted stock awards, shares		13,275
Stock-based compensation expense			86,200
Company payment of employee taxes for stock-based compensation			(1,500)
Net loss				(974,900)	(974,900)
Ending balance at Mar. 31, 2016		$ 14,600	78,274,000	(81,571,800)	(3,283,200)
Ending balance, shares at Mar. 31, 2016		9,744,508
Beginning balance at Dec. 31, 2016		$ 14,700	78,512,200	(82,449,800)	(3,922,900)
Beginning balance, shares at Dec. 31, 2016		9,804,400
Vesting of restricted stock awards
Stock-based compensation expense			15,300
Company payment of employee taxes for stock-based compensation
Net loss				(153,700)	(153,700)
Ending balance at Mar. 31, 2017		$ 14,700	$ 78,527,500	$ (82,603,500)	$ (4,061,300)
Ending balance, shares at Mar. 31, 2017		9,804,400