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7. Accrued Compensation (Tables)
 12 Months Ended
Dec. 31, 2013
Compensation Related Costs [Abstract]  
Schedule of accrued compensation
   December 31, 
   2013   2012 
Accrued vacation  $439,000   $423,000 
Accrued salaries   137,000    111,000 
Accrued bonuses   45,000    33,000 
Accrued commissions   26,000    31,000 
Total accrued compensation  $647,000   $598,000