SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, Property, Plant and Equipment and Goodwill and Intangible Assets (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2017 USD ($) Asset	Dec. 31, 2016 USD ($) Asset
Property, Plant and Equipment [Line Items]
Estimated probability of deferred tax asset being realized	50.00%
Accrued income tax interest and penalties	$ 0	$ 0
Unrecognized tax benefits	$ 0	0
General period of examination of tax filings by tax authorities	5 years
Foreign currency translation gain (loss)	$ 271	(249)
Finite-Lived Intangible Assets [Line Items]
Impairment of goodwill	0	0
Capitalized software development costs	$ 398	$ 217
Impairment of Long-lived Assets [Abstract]
Number of long-lived assets impaired | Asset	0	0
Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	2 years
Amortization period of EECP systems	2 years
Finite-Lived Intangible Assets [Line Items]
Useful life of intangible assets	5 years
Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	8 years
Amortization period of EECP systems	5 years
Finite-Lived Intangible Assets [Line Items]
Useful life of intangible assets	10 years