Consolidated Balance Sheets - USD ($) $ in Thousands		Dec. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents		$ 124,553	$ 26,798
Marketable securities		52,768	59,871
Accounts receivable, net of allowance for doubtful accounts of $226 and $185, respectively		28,531	26,113
Other receivables		375	498
Inventories		27,860	31,325
Prepaid expenses and other current assets		3,374	3,162
Total current assets		237,461	147,767
Property and equipment, net		23,355	25,696
Goodwill	[1]	28,685	28,866
Intangibles, net		42,118	43,465
Deposits and other assets		4,198	2,415
Total assets		335,817	248,209
Current liabilities:
Accounts payable		17,549	11,027
Accrued payroll		13,030	13,337
Accrued expenses and other current liabilities		5,576	5,260
Contingently issuable common stock		14,700	0
Total current liabilities		50,855	29,624
Long-term liabilities:
Deferred income taxes		879	879
Deferred rent		8,051	8,060
Other liabilities		210	489
Contingently issuable common stock		0	14,600
Convertible notes		172,515	70,407
Total liabilities		$ 232,510	$ 124,059
Commitments and contingencies
Stockholders’ equity:
Convertible preferred stock, $0.001 par value; 5,000,000 shares authorized. No shares issued and outstanding.		$ 0	$ 0
Common stock, $0.001 par value; 100,000,000 shares authorized, 68,235,179 and 67,321,769 shares issued, respectively. 68,034,386 and 67,159,511 shares outstanding, respectively.		68	67
Additional paid-in capital		404,462	372,639
Accumulated deficit		(298,924)	(248,500)
Treasury stock, at cost, 200,793 and 162,258 shares, respectively.		(2,809)	(2,328)
Accumulated other comprehensive income		510	2,272
Total stockholders’ equity		103,307	124,150
Total liabilities and stockholders’ equity		$ 335,817	$ 248,209

[1] Difference in goodwill value between these dates is solely due to a foreign currency translation adjustment.