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11. Stock-based and Other Compensation (Details - Option Activity) - Options [Member] - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 9 Months Ended
Sep. 30, 2017
Dec. 31, 2016
Options outstanding, beginning balance 45  
Options granted 0  
Options exercised 0  
Options forfeited 0  
Options outstanding, ending balance 45  
Options exercisable 29  
Weighted average exercise price, options outstanding, beginning balance $ 10.45  
Weighted average exercise price, options outstanding, ending balance 10.45  
Weighted average exercise price, options exercisable $ 10.42  
Weighted average remaining contractural life, outstanding 8 years 6 months  
Weighted average remaining contractural life, exercisable 8 years 6 months  
Aggregate intrinsic value, options outstanding   $ (70)
Aggregate intrinsic value, options exercisable   $ (44)