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8. Income Taxes (Details 1)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Income Taxes Details 1    
Statutory U.S. income tax rate 34.00% 34.00%
States taxes, net of federal benefit 1.29% 1.50%
Permanent differences 2.36% 1.04%
Change in valuation allowance (0.84%) (8.19%)
Change in net operating loss carryforwards and tax credits (5.02%) 0.30%
Other (0.70%) (0.33%)
Effective income tax rate 31.09% 28.32%