Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Details Textual)

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Stockholders' Equity (Details Textual) (USD $)
 6 Months Ended 6 Months Ended 3 Months Ended
Jun. 30, 2012
Dec. 31, 2011
Jun. 30, 2012
Remeasuring [Member]
Dec. 31, 2011
Remeasuring [Member]
Jun. 30, 2012
Stock Warrants [Member]
Jun. 30, 2012
Stock Warrants [Member]
Remeasuring [Member]
Mar. 31, 2012
Stock Warrants [Member]
Remeasuring [Member]
Stockholders' Equity (Textual) [Abstract]              
Number of shares of common stock to be purchased by issuing warrants 250,000            
Exercise price of stock warrants 9.60 9.60          
Warrants expiration date Oct. 14, 2015            
Fair value of warrants outstanding $ 2,000,000     $ 883,000      
Increase in fair value of warrants due to remeasurements     $ 137,000        
Percentage of weighted average expected stock volatility         111.46% 55.13%  
Contract term of expected life assumption         5 years   3 years 3 months 18 days
Percentage of risk free rate for warrant         2.07% 0.66%