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Financial Statement Details (Tables)

12 Months Ended

Dec. 31, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Summary of Inventories

Inventories consist of the following (in thousands):

	December 31,
	2018				2017
Finished goods	$	14,797			$	14,331
Raw materials and components	11,634				6,072
	$	26,431			$	20,403

Summary of Property, Plant and Equipment and Rental Assets

Rental assets consist of the following (in thousands):

	December 31,
	2018				2017
Rental assets	$	16,648			$	16,602
Less—accumulated depreciation	(10,879		)		(9,039		)
	$	5,769			$	7,563

Property, plant and equipment consists of the following (in thousands):

	December 31,
	2018				2017
Land	$	247			$	288
Buildings	2,247				2,614
Test equipment	14,444				23,396
Computer equipment and purchased software	4,889				5,548
Product tooling	504				449
Furniture and fixtures	677				564
Vehicles	1,990				2,003
Leasehold improvements	136				267
	25,134				35,129
Less—accumulated depreciation and amortization	(18,436		)		(28,138		)
	$	6,698			$	6,991

Summary of Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities consist of the following (in thousands):

	December 31,
	2018				2017
Royalties	$	1,727			$	1,558
Payroll and related expenses	2,415				2,870
Professional fees	514				1,789
Accrued interest	239				239
Deferred revenue	2,048				1,823
Acquisition-related liabilities	1,000				13,186
Other	5,081				6,093
	$	13,024			$	27,558

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Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(13))
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Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

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-Name Accounting Standards Codification
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