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7. Notes Payable (Tables)
3 Months Ended
Mar. 31, 2017
Debt Disclosure [Abstract]  
Schedule Of Notes Payable
   March 31, 2017   December 31, 2016 
         
Variable rate term loan due May 31, 2018. Principal and interest (3.28% at March 31, 2017) payable monthly with a balloon payment due at maturity.  $3,212    $3, 339 
           
Variable rate term loan due May 31, 2019. Principal and interest (3.28% at March 31, 2017) payable monthly with a balloon payment due at maturity.   3,697    3,780 
Total notes payable   6,909    7,119 
Less current portion   (840)   (840)
Total long-term portion  $6,069   $6,279