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12. Income Taxes (Tables)
12 Months Ended
Dec. 31, 2014
Income Tax Disclosure [Abstract]  
Reconciliation of income tax provision
   December 31, 
   2014   2013   2012 
Computed tax provision (benefit) at federal statutory rate (34%)  $(1,133,000)  $(1,993,000)  $(1,434,000)
State income taxes, net of federal benefit   (295,000)   (518,000)   (373,000)
Permanent items   0    0    0 
Valuation allowance   1,428,000    2,511,000    1,807,000 
Income tax provision  $   $   $ 
Net operating loss carryforwards
   December 31, 
   2014   2013 
Net operating loss carry forwards  $19,600,000   $18,400,000 
Valuation allowance   (19,600,000)   (18,400,000)
Total deferred taxes net of valuation allowance  $   $