CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 122,233	$ 54,092
Marketable securities	19,547	17,682
Accounts receivable, less reserve for doubtful accounts of $23 and $31, respectively	15,194	11,300
Royalties and other receivables	839	82
Inventories, net	24,696	17,998
Prepaid expenses and other current assets	1,644	2,098
Total current assets	184,153	103,252
Property, plant and equipment, net	14,956	13,801
Long-term marketable securities	0	1,633
Intangible assets, net	29,806	12,755
Goodwill	59,548	14,346
Restricted cash	450	450
Total assets	288,913	146,237
Current liabilities:
Accounts payable	5,061	6,724
Accrued liabilities	16,014	12,057
Total current liabilities	21,075	18,781
Convertible senior notes, net	95,272
Other long-term liabilities	3,802	4,708
Commitments and contingencies (Note 6)
Stockholders' equity:
Preferred stock, $.01 par value, 5,000,000 shares authorized, no shares issued or outstanding
Common stock, $.01 par value, 80,000,000 shares authorized, 33,844,074 shares at December 31, 2016 and 32,949,353 shares at December 31, 2015 issued and outstanding	338	329
Additional paid-in capital	242,036	202,527
Accumulated other comprehensive loss	(13,749)	(8,566)
Accumulated deficit	(59,861)	(71,542)
Total stockholders' equity	168,764	122,748
Total liabilities and stockholders' equity	$ 288,913	$ 146,237