INCOME TAXES (Details - Other) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Operating Loss Carryforwards [Line Items]
Change in valuation allowance	$ 1,564,000	$ (3,153,000)
Cash tax benefits resulting in net operating loss carryforward	1,300,000	1,200,000
Income from U.S. sources	1,500,000	70,600,000	$ 53,200,000
Income (loss) from foreign sources	1,100,000	273,000	(5,600,000)
Income taxes paid	1,300,000	$ 3,000,000	$ 6,500,000
Foreign Country [Member]
Operating Loss Carryforwards [Line Items]
Change in valuation allowance	(551,000)
Net operating loss carryforward	24,600,000
Domestic Country [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforward	$ 64,300,000
Operating loss carryforwards, first expiration date	Dec. 31, 2020
State and Local Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Change in valuation allowance	$ 2,180,000
Net operating loss carryforward	$ 6,900,000
Operating loss carryforwards, first expiration date	Dec. 31, 2020
Income tax credit carryforward	$ 2,300,000