INTANGIBLE ASSETS - Weighted Average Remaining Amortization Periods and Expected Amortization Expense for Next Five Years for Intangible Assets (Details) - Patents, trademarks and tradename $ in Thousands	6 Months Ended
	Jun. 30, 2019 USD ($)
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	6 years 6 months
Expected Amortization Expense-Remainder of 2019	$ 29
Expected Amortization Expense-2020	58
Expected Amortization Expense-2021	58
Expected Amortization Expense-2022	58
Expected Amortization Expense-2023	$ 58