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1. Summary of Significant Accounting Policies (Details - Other income) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Primary components of Other Income      
Other income for the period $ 9,478 $ 10,209 $ 13,286
Direct Mail Revenues [Member]      
Primary components of Other Income      
Other income for the period 5,829 6,432 9,202
Convenience Fee Revenue [Member]      
Primary components of Other Income      
Other income for the period 1,700 1,900 2,145
Recoveries on Previously Charged-Off Contracts [Member]      
Primary components of Other Income      
Other income for the period 248 563 766
Sales Tax Refunds [Member]      
Primary components of Other Income      
Other income for the period 887 866 811
Other Income [Member]      
Primary components of Other Income      
Other income for the period $ 814 $ 448 $ 362