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Fair Value of Financial Instruments (Tables)
9 Months Ended
Sep. 30, 2014
Fair Value Disclosures [Abstract]  
Liabilities measured on a recurring basis
The following table summarizes the warrant derivative liability measured at fair value on a recurring basis as of the dates presented, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value:
 
 (In thousands)
 
Total
 
Quoted prices in active markets for identical assets (Level 1)
 
Significant other observable inputs (Level 2)
 
Significant unobservable inputs
(Level 3)
Warrant liability
 
$
1,560

 
$

 
$

 
$
1,560

Liabilities measured on a recurring basis, unobservable input reconciliation
The following table reflects the activity for the warrant liability measured at fair value using Level 3 inputs for the nine month period ended September 30, 2014:
 
 (In thousands)
 
Balance as of December 31, 2013
$

Issuance of warrants
1,690

Unrealized gains related to the change in fair value
(130
)
Balance at September 30, 2014
$
1,560