Right-of-use Asset and Leasing Liabilities (Details - Income Statement) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Operating expense:
Amortization expense – Finance ROU	$ 111	$ 11	$ 144	$ 32
Lease expense – Operating ROU	66	82	252	248
Other expense:
Interest expense – Finance ROU	$ 8		$ 9	$ 2