CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 157,651	$ 54,092
Marketable securities	21,060	17,682
Accounts receivable, less reserve for doubtful accounts of $19 at September 30, 2016 and $31 at December 31, 2015	15,154	11,300
Other receivables	226	82
Inventories	24,463	17,998
Prepaid expenses and other current assets	1,279	2,098
Total current assets	219,833	103,252
Property, plant and equipment, net	14,935	13,801
Long-term marketable securities	0	1,633
Intangible assets, net	18,671	12,755
Goodwill	31,161	14,346
Restricted cash	450	450
Total assets	285,050	146,237
Current liabilities:
Accounts payable	5,061	6,724
Accrued liabilities	15,131	12,057
Total current liabilities	20,192	18,781
Convertible senior notes	94,318
Deferred tax liabilities	2,124	451
Other long-term liabilities	1,894	4,257
Commitments and contingencies (Note 11)
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, 33,822,962 shares at September 30, 2016 and 32,949,353 shares at December 31, 2015 issued and outstanding	338	329
Additional paid-in capital	240,571	202,527
Accumulated other comprehensive loss	(9,496)	(8,566)
Accumulated deficit	(64,891)	(71,542)
Total stockholders' equity	166,522	122,748
Total liabilities and stockholders' equity	$ 285,050	$ 146,237

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.