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Fair Value Measurement (Narrative) (Details) (USD $)
0 Months Ended 3 Months Ended 6 Months Ended
Apr. 08, 2013
Jun. 30, 2014
Jun. 30, 2014
Feb. 18, 2014
Jun. 30, 2014
Money Market Funds [Member]
Fair Value, Inputs, Level 1 [Member]
Dec. 31, 2013
Money Market Funds [Member]
Fair Value, Inputs, Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]            
Cash Equivalents         $ 11,604,000 $ 14,001,000
Stipulation of settlement, payment to plaintiff, warrants 250,000     250,000    
Expected volatility rate     41.00%      
Risk free interest rate     1.50%      
Stipulation of settlement, payment to plaintiff, warrants, term 5 years   5 years      
Warrants, fair value per share   6.59 6.59      
Liabilities, Fair Value Adjustment   $ 400,000 $ 400,000