Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 116,250	$ 117,252
Accounts receivable, net of allowances of $329 and $269	26,926	27,126
Inventory	49,486	46,131
Prepaid expenses and other current assets	7,149	8,084
Total current assets	199,811	198,593
Property, plant and equipment, net of accumulated depreciation of $60,120 and $58,633	41,012	27,747
Operating lease right-of-use assets	6,834
Intangible assets, net of accumulated amortization of $4,029 and $3,150	9,442	10,006
Goodwill	9,972	9,872
Other assets, net	4,718	3,748
Total assets	271,789	249,966
Current liabilities:
Accounts payable	17,244	12,700
Accrued liabilities	9,247	11,605
Deferred revenues	1,983	679
Operating lease liabilities	2,759
Current portion of long-term debt	35	51
Total current liabilities	31,268	25,035
Non-current income taxes payable	6,461	6,429
Long-term operating lease liabilities	4,373
Long-term debt	15,000	0
Other long-term liabilities	1,740	1,894
Total liabilities	58,842	33,358
Stockholders' equity:
Common stock - $0.0001 par value; 190,000 shares authorized, 38,473 shares issued and outstanding at March 31, 2020 and 38,084 shares issued and outstanding at December 31, 2019	15	15
Additional paid-in capital	341,042	336,732
Accumulated other comprehensive loss	(3,181)	(2,685)
Accumulated deficit	(124,929)	(117,454)
Total stockholders’ equity	212,947	216,608
Total liabilities and stockholders’ equity	$ 271,789	$ 249,966