GOODWILL AND OTHER INTANGIBLE ASSETS (Details - Narrative) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill deductible for tax purposes	$ 148.3
Amortization expense	$ 3.7	$ 3.1	$ 2.7
Amortization period	25 years