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Summary of Significant Accounting Policies (Fair Value of Financial Instruments) (Details) (USD $)
In Thousands, unless otherwise specified
0 Months Ended 0 Months Ended 1 Months Ended
Jun. 12, 2013
Warrant [Member]
Jun. 30, 2013
Warrant [Member]
Mar. 31, 2013
Warrant [Member]
Feb. 28, 2013
Warrant [Member]
Mar. 31, 2013
Warrant [Member]
Unsecured Notes [Member]
Feb. 28, 2013
Warrant [Member]
Unsecured Notes [Member]
Jun. 12, 2013
Common Stock [Member]
Convertible Debentures [Member]
Dec. 31, 2012
Common Stock [Member]
Convertible Debentures [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                
Shares isued in debt converstion             443 826
Unsecured notes         $ 6,750 $ 6,750    
Warrants issued   1,334 86 86        
Exercise price of warrants     13.92 13.92        
Exercise price of warrants as a percentage of public offering share price     90.00% 90.00%        
Fair value of warrants     454 435        
Additional paid in capital $ 435