XML 17 R33.htm IDEA: XBRL DOCUMENT v2.4.0.8
Fair Value Measurements (Contingent Purchase Price Consideration, Measured at Estimated Fair Value on Recurring Basis) (Detail) (USD $)
Sep. 30, 2014
Dec. 31, 2013
Jun. 30, 2013
Assets:      
Marketable securities     $ 5,786,000
Liabilities:      
Warrants potentially settleable in cash 8,765,000 48,965,000  
Unobservable Inputs (Level 3) [Member]
      
Liabilities:      
Contingent purchase price consideration 6,880,000 6,821,000  
Fair Value, Measurements, Recurring [Member]
      
Assets:      
Cash equivalents 20,332,000 42,349,000  
Total assets 20,332,000 42,349,000  
Liabilities:      
Warrants potentially settleable in cash 8,765,000 48,965,000  
Contingent purchase price consideration 6,880,000 6,821,000  
Total liabilities 15,645,000 55,786,000  
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets (Level 1) [Member]
      
Assets:      
Cash equivalents 20,332,000 42,349,000  
Total assets 20,332,000 42,349,000  
Liabilities:      
Warrants potentially settleable in cash 0 0  
Contingent purchase price consideration 0 0  
Total liabilities 0 0  
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
      
Assets:      
Cash equivalents 0 0  
Total assets 0 0  
Liabilities:      
Warrants potentially settleable in cash 8,765,000 48,965,000  
Contingent purchase price consideration 0 0  
Total liabilities 8,765,000 48,965,000  
Fair Value, Measurements, Recurring [Member] | Unobservable Inputs (Level 3) [Member]
      
Assets:      
Cash equivalents 0 0  
Total assets 0 0  
Liabilities:      
Warrants potentially settleable in cash 0 0  
Contingent purchase price consideration 6,880,000 6,821,000  
Total liabilities $ 6,880,000 $ 6,821,000