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9. Equity-Based Incentive Plans (Details - Option Activity - Stock Options [Member] - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Number of Options    
Number of Options Outstanding, Beginning 3,509,000  
Number of Options Granted 0 0
Number of Options Exercised (25,000)  
Number of Options Forfeited (3,158,000)  
Number of Options Outstanding, Ending 326,000 3,509,000
Number of Options Vested 281,000  
Number of Options Exercisable 281,000  
Weighted Average Exercise Price    
Weighted Average Exercise Price Outstanding, Beginning $ 4.96  
Weighted Average Exercise Price Exercised 3.12  
Weighted Average Exercise Price Forfeited 5.04  
Weighted Average Exercise Price Outstanding, Ending 4.38 $ 4.96
Weighted Average Exercise Price Vested 4.45  
Weighted Average Exercise Price Exercisable $ 4.45  
Remaining Contractual Term    
Options Outstanding 4 years 4 months 24 days  
Options Vested 3 years 10 months 25 days  
Options Exercisable 3 years 10 months 25 days  
Aggregate Intrinsic Value    
Aggregate intrinsic value options outstanding $ 0  
Aggregate intrinsic value options vested 0  
Aggregate intrinsic value options exercisable $ 0