INCOME TAXES, Tax Credits and Net Operating Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Additional Income Tax Information [Abstract]
Federal statutory income tax rate	21.00%	35.00%
Deferred tax assets, net operating loss carryforwards	$ 8,370	$ 10,524
Income and dividend withholding taxes	400
One-time provisional transition tax expense		$ 18,100
Transitional tax expense	15,500
Deemed repatriation tax	(2,600)
Other Current Liabilities [Member]
Additional Income Tax Information [Abstract]
Tax Cuts And Jobs Act Of2017 Transition Tax For Accumulated Foreign Earnings Liability	10,800
Federal and State Jurisdiction [Member]
Additional Income Tax Information [Abstract]
Operating loss carryforwards	2,100
Tax credit carryforward	1,500
Tax credit carryforward, valuation allowance	(1,000)
Deferred tax assets, net operating loss carryforwards	400
Federal and State Jurisdiction [Member] | Array [Member]
Additional Income Tax Information [Abstract]
Operating loss carryforwards	1,800
Foreign Jurisdictions [Member]
Additional Income Tax Information [Abstract]
Operating loss carryforwards	35,600
Tax credit carryforward	300
Operating loss carryforwards, valuation allowance	(8,200)
Deferred tax assets, net operating loss carryforwards	8,200
Foreign Jurisdictions [Member] | Capital Loss Carryforward [Member]
Additional Income Tax Information [Abstract]
Tax credit carryforward	$ 200
Macao [Member]
Additional Income Tax Information [Abstract]
Federal statutory income tax rate	12.00%
People's Republic of China (PRC) [Member]
Additional Income Tax Information [Abstract]
Federal statutory income tax rate	25.00%