INCOME TAXES (Details - Income tax expense) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Federal current tax									$ (765)	$ 871	$ 88
State current tax									7,263	4,906	914
Other current tax									20	23	28
Federal deferred tax									(2,020)	21,389	2,539
State deferred tax									(4,104)	(2,879)	863
Income tax expense (benefit)	$ (2,441)	$ 2,827	$ 2,505	$ (2,497)	$ 20,133	$ 1,112	$ 3,523	$ (458)	$ 394	$ 24,310	$ 4,432