INCOME TAXES (Details) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Tax open years subject to examination [Line Items]
Tax Cuts And Jobs Act Of 2017 Incomplete Accounting Provisional Federal And State Income Tax Expense Benefit			$ 0		$ 0
Income tax benefit (provision)			393,000	$ 850,000
Pre-tax income (loss)	$ (711,000)	$ (23,000)	$ (4,680,000)	$ (842,000)
Effective income tax rate			(8.40%)	(101.00%)
U.S. Federal statutory rate			21.00%	35.00%
Unrecognized tax benefits	2,001,000		$ 2,001,000		1,682,000
Accrued interest and penalties	598,000		598,000		$ 566,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense			$ 42,000	$ 44,000
U.S. Federal [Member]
Tax open years subject to examination [Line Items]
Open Tax Year			2015
Other U.S. state and local juristictions [Member]
Tax open years subject to examination [Line Items]
Open Tax Year			2013
Australia
Tax open years subject to examination [Line Items]
Open Tax Year			2017
BELGIUM
Tax open years subject to examination [Line Items]
Open Tax Year			2015
CANADA
Tax open years subject to examination [Line Items]
Open Tax Year			2014
NETHERLANDS
Tax open years subject to examination [Line Items]
Open Tax Year			2012
SWITZERLAND
Tax open years subject to examination [Line Items]
Open Tax Year			2013
United Kingdon
Tax open years subject to examination [Line Items]
Open Tax Year			2017
Justifications in Asia [Member]
Tax open years subject to examination [Line Items]
Open Tax Year			2018
Minimum
Tax open years subject to examination [Line Items]
Possible decrease of unrecognized tax benefits	0		$ 0
Maximum
Tax open years subject to examination [Line Items]
Possible decrease of unrecognized tax benefits	$ 180,000		$ 180,000