(1) Summary of Significant Accounting Policies (Details - Cash flow) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 1,932	$ 1,890	$ 3,858	$ 3,776
Operating cash flows from finance leases	248	36	481	36
Financing cash flows from finance leases	$ 45	$ 8	$ 91	$ 8