Consolidated Balance Sheet Detail

3 Months Ended

Mar. 31, 2019

Consolidated Balance Sheet Detail

6. Consolidated Balance Sheet Detail

Inventories, net

Inventories, net consists of the following:

	As of
	March 31,		December 31,
	2019		2018
	(Amounts in thousands)
Raw materials	$	26,899	$	24,937
Work-in-process		5,437		5,185
Finished products		12,584		12,141
Total inventories, net	$	44,920	$	42,263

Property, Plant and Equipment

Property, plant and equipment consist of the following:

	As of
	March 31,			December 31,
	2019			2018
	(Amounts in thousands)
Land	$	1,023		$	1,023
Buildings		764			764
Leasehold improvements		22,782			16,259
Equipment		26,332			24,092
Furniture and fixtures		6,362			5,448
Construction in progress(1)		6,826			12,906
Other		50			—
Total property, plant and equipment		64,139			60,492
Less - Accumulated depreciation		(29,613	)		(28,312	)
Total property, plant and equipment, net	$	34,526		$	32,180

(1) Construction in progress as of December 31, 2018 included $7.3 million for the buildout of our Marlborough facility, which was put into service and began depreciating on January 1, 2019, $2.1 million in capitalized internal-use software development costs and $2.1 million for a casting machine, among other projects.

Depreciation expenses totaled $1.6 million and $1.3 million for the three months ended March 31, 2019 and 2018, respectively.

Accrued Liabilities

Accrued liabilities consist of the following:

	As of
	March 31,		December 31,
	2019		2018
	(Amounts in thousands)
Employee compensation	$	6,329	$	9,953
Taxes		1,155		1,024
Royalty and license fees		645		242
Accrued purchases		527		683
Warranties		600		546
Professional fees		941		942
Deferred revenue		1,287		1,290
Other		1,276		1,185
Total accrued liabilities	$	12,760	$	15,865