CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (unaudited) (USD $)	Series A Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Accumulated Deficit [Member]	Total
Balance at Dec. 31, 2011	$ 0	$ 74,307	$ 73,868,604	$ (25,000)	$ (62,021,346)	$ 11,896,565
Balance (in shares) at Dec. 31, 2011	0	74,306,895
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Employee share-based compensation expense	0	0	878,491	0	0	878,491
Other share-based compensation expense	0	0	207,709	0	0	207,709
Exercise of stock options	0	325	314,970	0	0	315,295
Exercise of stock options (in shares)		324,750
Exercise of warrants	0	3,453	320,185	0	0	323,638
Exercise of warrants (in shares)		3,453,869
Cashless exercise of warrants	0	167	(167)	0	0	0
Cashless exercise of warrants (in shares)		167,183				167,183
Common stock issued for accrued Director fees	0	167	184,486	0	0	184,653
Common stock issued for accrued Director fees (in shares)		167,086				167,086
Common stock issued for Earn-out liability	0	2,633	3,182,590	0	0	3,185,223
Common stock issued for Earn-out liability (in shares)		2,632,576
Discount on beneficial conversion feature recognized on vested contingent warrants on the line of credit with related party	0	0	514,456	0	0	514,456
Net loss for the period	0	0	0	0	(1,837,721)	(1,837,721)
Balance at Jun. 30, 2012	$ 0	$ 81,052	$ 79,471,324	$ (25,000)	$ (63,859,067)	$ 15,668,309
Balance (in shares) at Jun. 30, 2012	0	81,052,359