2. Finance Receivables (Details - Amortized Cost Basis) - USD ($)	Mar. 31, 2020	Dec. 31, 2019
Amortized cost basis	$ 772,851,000	$ 895,566,000
2012 Annual Vintage Pool [Member]
Amortized cost basis	1,816,000	2,432,000
2013 Annual Vintage Pool [Member]
Amortized cost basis	11,643,000	15,489,000
2014 Annual Vintage Pool [Member]
Amortized cost basis	48,794,000	61,290,000
2015 Annual Vintage Pool [Member]
Amortized cost basis	136,679,000	162,242,000
2016 Annual Vintage Pool [Member]
Amortized cost basis	253,339,000	292,360,000
2017 Annual Vintage Pool [Member]
Amortized cost basis	$ 320,580,000	$ 361,753,000