COMMITMENTS (Details - Operating Leases) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Future minimum payments under operating lease
Operating Leases, Future Minimum Payments, Due in One Year	$ 1,543,000
Operating Leases, Future Minimum Payments, Due in Two Years	1,374,000
Operating Leases, Future Minimum Payments, Due in Three Years	1,227,000
Operating Leases, Future Minimum Payments, Due in Four Years	1,025,000
Operating Leases, Future Minimum Payments, Due in Five Years	1,055,000
Total	6,224,000
Operating Leases, Rent Expense, Net	1,200,000	$ 1,100,000	$ 1,300,000
Sublease rental income	$ 0	$ 0	$ 18,000