CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Current Assets:
Cash and cash equivalents	$ 76,766	$ 72,354
Short-term investments	746	527
Restricted short-term investments	1,519	1,390
Accounts receivable, net	25,892	26,777
Inventories, net	78,137	79,754
Income tax refund and deposits	210	22
Prepaid expenses and other assets	8,147	3,272
Total current assets	191,417	184,096
Property, plant, and equipment, net	157,389	152,944
Goodwill and intangible assets, net	45,993	50,307
Other assets	8,939	9,390
Deferred tax assets	31,874	31,001
Total assets	435,612	427,738
Current Liabilities:
Accounts payable	19,302	16,196
Accrued liabilities	22,597	15,703
Income taxes payable	8,099	7,705
Accrued payroll and related benefits	15,533	13,847
Current portion of product return accrual	2,067	1,800
Current portion of long-term debt and capital leases	5,263	5,366
Total current liabilities	72,861	60,617
Long-term product return accrual	1,676	1,343
Long-term reserve for income tax liabilities	845	845
Long-term deferred revenue	280	97
Long-term debt and capital leases, net of current portion	31,148	32,356
Deferred Tax Liabilities, Net, Noncurrent	1,473	1,455
Other long-term liabilities	1,768	1,770
Total liabilities	110,051	98,483
Stockholders’ equity:
Preferred stock: par value $0.0001; 20,000,000 shares authorized; no shares issued and outstanding
Common stock: par value $0.0001; 300,000,000 shares authorized; 48,003,777 and 45,958,244 shares issued and outstanding as of March 31, 2017 and 47,765,149 and 46,248,622 shares issued and outstanding as of December 31, 2016, respectively	5	5
Additional paid-in capital	285,356	283,123
Retained earnings	72,620	70,855
Accumulated other comprehensive loss	(4,230)	(4,696)
Treasury stock	(28,190)	(20,032)
Total stockholders’ equity	325,561	329,255
Total liabilities and stockholders’ equity	$ 435,612	$ 427,738