10. Stock-based and Other Compensation (Details - Option Activity) - Options [Member] $ / shares in Units, shares in Thousands, $ in Thousands	9 Months Ended
	Sep. 30, 2018 USD ($) $ / shares shares
Options outstanding, beginning balance | shares	45
Options granted | shares	0
Options exercised | shares	0
Options forfeited | shares	(3)
Options outstanding, ending balance | shares	42
Options exercisable | shares	36
Weighted average exercise price, options outstanding, beginning balance | $ / shares	$ 10.45
Weighted average exercise price, options granted | $ / shares	0.00
Weighted average exercise price, options exercised | $ / shares	0.00
Weighted average exercise price, options forfeited | $ / shares	11.10
Weighted average exercise price, options outstanding, ending balance | $ / shares	10.40
Weighted average exercise price, options exercisable | $ / shares	$ 10.42
Weighted average remaining contractural life, outstanding	7 years 6 months
Weighted average remaining contractural life, exercisable	7 years 6 months
Aggregate intrinsic value, options outstanding | $	$ 0
Aggregate intrinsic value, options exercisable | $	$ 0