Consolidate Statements of Shareholders' Equity (Deficit) (USD $)	Common stock [Member]	Additional paid-in capital [Member]	Accumulated deficit [Member]	Common stock held in treasury [Member]	Total
Balance at Dec. 31, 2009	$ 4,600	$ 58,861,500	$ (58,092,400)	$ (48,100)	$ (21,500)
Balance (in shares) at Dec. 31, 2009	46,284,292			550,000
Employee stock option issuances (in shares)	83,333
Private placement of common stock (in shares)	0
Private placement of common stock - par value	0
Stock-based compensation expense		83,200
Proceeds from private placement of common stock and warrants		0
Costs of private placement of common stock and warrants		0
Allocation of proceeds from common stock and warrants to warrants liability		0
Employee restricted stock awards (in shares)	0
Employee stock purchase plan issuances		400
Employee stock purchase plan issuances (in shares)	14,000
Treasury shares retired		(48,100)		48,100
Treasury shares retired (in shares)				(550,000)
Exercise of employee stock options		5,000
Reclass private placement of common stock - par value amount		0
Previously issued unearned performance-based restricted stock award forfeited (in shares)	(400,000)
Net loss			(835,700)		(835,700)
Balance at Dec. 31, 2010	4,600	58,902,000	(58,928,100)	0	(21,500)
Balance (in shares) at Dec. 31, 2010	45,981,625			0	0
Employee stock option issuances (in shares)	180,301
Private placement of common stock (in shares)	35,500,000
Private placement of common stock - par value	3,600
Stock-based compensation expense		264,800
Proceeds from private placement of common stock and warrants		7,100,000
Costs of private placement of common stock and warrants		(974,500)
Allocation of proceeds from common stock and warrants to warrants liability		(3,900,700)
Employee restricted stock awards (in shares)	225,000
Employee stock purchase plan issuances		0
Employee stock purchase plan issuances (in shares)	0
Treasury shares retired		0		0
Treasury shares retired (in shares)				0
Exercise of employee stock options		10,600
Reclass private placement of common stock - par value amount		(3,600)
Previously issued unearned performance-based restricted stock award forfeited (in shares)	0
Net loss			(1,761,100)		(1,761,100)
Balance at Dec. 31, 2011	$ 8,200	$ 61,398,600	$ (60,689,200)	$ 0	$ 717,600
Balance (in shares) at Dec. 31, 2011	81,886,926			0	0