16. Income Taxes (Details - Deferred tax classification) - USD ($) $ in Thousands	Dec. 30, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Deferred tax assets, noncurrent	$ 0	$ 2,081
Deferred tax liabilties, noncurrent	4,577	0
Net deferred tax liabilities	$ 4,577	$ 2,081