INCOME TAX PROVISION Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Deferred Tax Assets
Net operating loss	$ 55,622	$ 52,006
Accrued compensation	3,314	2,979
Share based compensation	3,169	2,811
Tenant improvement allowance	381	168
Inventory reserves	904	935
Other deferred tax assets	2,212	2,149
Tax credits	1,215	1,665
Depreciation	1,655	576
Intangible assets amortization – definite lived	883	338
Interest limitation	4,247
Unrecognized gain on derivatives	492
Less: Valuation allowance	(55,771)	(53,877)
Deferred tax assets	18,323	9,750
Deferred Tax Liabilities
Other deferred tax liabilities	(16)	(285)
Convertible debt	(86)	(735)
Deferred revenue – current	(626)	(1,329)
Prepaid expenses	(119)	(128)
Intangible assets amortization – indefinite lived	(31,177)	(26,263)
Internally developed software	(254)	(377)
Deferred tax liabilities	(32,278)	(29,117)
Net deferred liability	$ (13,955)	$ (19,367)