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Thin Film Japan Distribution Agreement (Details) (USD $)
 12 Months Ended
Dec. 31, 2013
Installment
Feb. 28, 2013
Dec. 31, 2012
Dec. 31, 2004
Thin Film Japan Distribution Agreement [Abstract]        
License fee recorded as deferred revenue $ 212,000 $ 2,379,000 $ 2,635,000 $ 1,500,000
Period before post commercialization in case of termination for proportional refund 3 years      
Milestone payments received 1,250,000      
Payment obligation under termination agreement 1,200,000      
Number of installment payments 6      
Periodic payment under termination agreement 200,000      
Deferred revenues 212,000 2,379,000 2,635,000 1,500,000
Aggregate installment payments paid 800,000      
Termination fee obligation 400,000      
Development revenue $ 1,179,000