2. LEASES (Details - Operating lease info) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Jan. 02, 2019	Dec. 31, 2018
Right of use operating lease assets	$ 4,334	$ 5,707	$ 0
Current lease liabilities	1,181	1,215	0
Non-current lease liabilities	3,180	4,492	$ 0
Total lease liabilities	4,361	$ 5,707
Components of lease expense
Short term lease expense	309
Total lease expense	1,787
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 1,478
Right of use assets obtained in exchange for new operating liabilities
Weighted average remaining lease (years) terms on operating leases	3 years 3 months 11 days	4 years 6 months
Weighted average discount rates on operating leases	5.374%	5.374%
Cost of Sales [Member]
Components of lease expense
Operating lease expense	$ 1,238
Selling, General and Administrative Expenses [Member]
Components of lease expense
Operating lease expense	$ 240