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BALANCE SHEET COMPONENTS (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Property and equipment:
Property, Plant and Equipment, Gross	$ 1,202	$ 2,523
Less accumulated depreciation	(1,014)	(1,943)
Property and Equipment, Net	188	580
Assets acquired under capital lease:
Original book value	461	461
Accumulated depreciation	(379)	(287)
Net book value	82	174
Furniture and Fixtures [Member]
Property and equipment:
Property, Plant and Equipment, Gross	998	911
Rental Inventory [Member]
Property and equipment:
Property, Plant and Equipment, Gross	0	1,411
Equipment [Member]
Property and equipment:
Property, Plant and Equipment, Gross	128	125
Vehicles [Member]
Property and equipment:
Property, Plant and Equipment, Gross	$ 76	$ 76

X

- Definition

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation of leased physical assets used in the normal conduct of business to produce goods and services.

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