XML 57 R34.htm IDEA: XBRL DOCUMENT

Fair Value Measurements (Narrative) (Details) (USD $)	12 Months Ended
Fair Value Measurements (Narrative) (Details) (USD $)	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Fair Value Measurements [Line Items]
Change in fair value of derivative instruments	$ (591,039)	$ (7,144,983)	$ 5,457,550
Long-term debt, carrying value	2,500,000
Long-term debt, fair value	2,500,000
Level 3 [Member] \| Warrants [Member]
Fair Value Measurements [Line Items]
Change in fair value of derivative instruments	(591,039)	(7,144,983)	5,457,550
Level 3 [Member] \| Warrants [Member] \| Derivative Liabilities [Member]
Fair Value Measurements [Line Items]
Warrants to purchase common stock	2,899,991	2,899,991
Change in fair value of derivative instruments	$ (591,039)	$ (7,144,983)	$ 5,457,550
Closing stock price, per share	$ 1.12	$ 1.27	$ 4.23

Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date before deducting unamortized discount or premiums (if any). May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer.

+ References+ Details