XML 53 R26.htm IDEA: XBRL DOCUMENT v2.4.0.6
Acquisitions - Additional Information (Detail) (USD $)
1 Months Ended 3 Months Ended
Nov. 06, 2012
Mar. 31, 2013
Business Acquisition [Line Items]    
Closing price of share $ 1.69  
Phygen, LLC [Member]
   
Business Acquisition [Line Items]    
Effective acquisition date   Nov. 06, 2012
Number of unregistered shares issued to acquire business 4,069,087  
Cash paid at closing of Purchase Agreement $ 2,000,000  
Unregistered shares of common stock placed in escrow account 1,170,960  
Cash paid to set-off for indemnification claims 4,000,000  
Net tangible assets assumed 1,200,000 1,204,000
Acquired intangible assets 9,200,000  
Goodwill 8,000,000 7,982,000
Contingent consideration $ 3,700,000  
Inventory step-up reversal period 6 months