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Note 4 - Balance Sheet Components - Annual Amortization of Identifiable Intangible Assets (Details)
Sep. 30, 2015
USD ($)
Year Ending December 31,  
2015 (remaining 3 months) $ 203,000
2016 765,000
2017 688,000
2018 661,000
2019 661,000
Thereafter 1,853,000
Total future amortization expense $ 4,831,000