(1) Summary of Significant Accounting Policies (Details - Stock purchases) - Common Stock [Member] - $ / shares	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Equity, Class of Treasury Stock [Line Items]
Total stock purchases, shares	178,731	0
Total stock purchases, average price per share	$ 4.22
Open Market Purchases[Member]
Equity, Class of Treasury Stock [Line Items]
Total stock purchases, shares	138,004	0
Total stock purchases, average price per share	$ 4.18
Residual Interest Financings
Equity, Class of Treasury Stock [Line Items]
Total stock purchases, shares	40,727	0
Total stock purchases, average price per share	$ 4.36