Common Stock Common Stock (Reconciliation of Common Shares Issued) (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Common Stock [Abstract]
Common stock, shares authorized	80,000,000	80,000,000
Common stock, par value	$ 0.0001	$ 0.0001
Preferred stock. shares authorized	100,000	100,000
Preferred stock, par value	$ 0.0001	$ 0.0001
Reconciliation of Changes in Common Shares Issued
Shares issued at the beginning of the year	51,957,652	36,753,891
Issued in sale of common stock	0	3,665,000
Issued upon conversion of preferred stock	0	4,871,719
Issued in payment of term loan principal	0	171,154
Issued in exchange of convertible notes	0	559,007
Issued upon exercise of warrants	348,350	3,960,747
Issued as dividend payments on preferred stock	0	624,171
Issued as restricted stock award grants	750,476	1,287,731
Issued upon exercise of stock options	67,500	64,232
Shares issued at the end of the year	53,123,978	51,957,652