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Schedule of Deferred Tax Assets and Liabilities (Details) (USD $)
Dec. 31, 2013
Dec. 31, 2012
Income Tax Disclosure [Abstract]    
Net operating loss carryforwards $ 10,347,000 $ 10,902,000
Credits 682,000 634,000
Capitalized research and development costs 295,000 446,000
Other acquired intangibles 165,000 184,000
Accruals not currently deductible 1,318,000 1,265,000
Total deferred tax assets 12,807,000 13,431,000
Valuation allowance for deferred tax assets (12,788,334) (13,417,395)
Net deferred tax assets 18,666 13,605
Deferred tax liability:    
Acquired intangibles (130,000) (93,000)
Net deferred tax liabilities $ (111,334) $ (79,395)