2. LEASES (Details - Operating lease info) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Right of use operating lease assets	$ 4,039		$ 4,334
Current lease liabilities	1,196		1,181
Non-current lease liabilities	2,875		3,180
Total lease liabilities	4,071		$ 4,361
Components of lease expense
Short term lease expense	34	$ 65
Total lease expense	$ 402	444
Right of use assets obtained in exchange for new operating liabilities
Weighted average remaining lease (years) terms on operating leases	3 years 1 month 13 days		3 years 3 months 11 days
Weighted average discount rates on operating leases	5.374%		5.374%
Cost of Sales [Member]
Components of lease expense
Operating lease expense	$ 308	306
Selling, General and Administrative Expenses [Member]
Components of lease expense
Operating lease expense	$ 60	$ 73