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11. Commitments (Details Narrative) (USD $)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Operating lease expense $ 621,000us-gaap_OperatingLeasesRentExpenseNet $ 581,000us-gaap_OperatingLeasesRentExpenseNet
Sublease income 31,000us-gaap_OperatingLeasesIncomeStatementSubleaseRevenue  
Depreciation expense 1,652,000us-gaap_Depreciation 1,567,000us-gaap_Depreciation
Interest expense on notes payable 210,000us-gaap_InterestExpenseLongTermDebt 9,000us-gaap_InterestExpenseLongTermDebt
Assets Held under Capital Leases [Member]    
Depreciation expense $ 20,000us-gaap_Depreciation
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_AssetsHeldUnderCapitalLeasesMember		 $ 83,000us-gaap_Depreciation
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_AssetsHeldUnderCapitalLeasesMember