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12. Commitments (Details Narrative) (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Operating lease expense $ 581,000 $ 579,000
Sublease income 44,000  
Depreciation expense 1,567,000 1,851,000
Interest expense on notes payable 9,000 5,000
Assets Held under Capital Leases [Member]
    
Depreciation expense $ 83,000 $ 271,000