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Stockholders' Equity (Details) (USD $)
6 Months Ended
Jun. 30, 2012
Mar. 15, 2012
Dec. 31, 2011
Jun. 30, 2011
Stockholders' Equity (Textual) [Abstract]        
Selling of company aggregate shares of common stock 50,129,000   45,662,000  
Stockholders' Equity (Additional Textual) [Abstract]        
Issue of common stock $ 501,000   $ 457,000 $ 70,000
Average price per share $ 4.09      
Net proceeds under the agreement 15,339      
Annual incentive earned 1,542      
Taxes paid 535      
Common stock price, Ending   $ 5.23    
Common stock were issued and sales at market price $ 70,000      
Sales [Member]
       
Stockholders' Equity (Textual) [Abstract]        
Selling of company aggregate shares of common stock 3,879      
Restricted common stock [Member]
       
Stockholders' Equity (Textual) [Abstract]        
Restricted common stock in shares 193      
Maximum [Member]
       
Stockholders' Equity (Textual) [Abstract]        
Commission rate 3.00%      
Minimum [Member]
       
Stockholders' Equity (Textual) [Abstract]        
Commission rate 2.00%