Condensed Consolidated Balance Sheets - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents		$ 36,269	$ 26,798
Marketable securities		34,257	59,871
Accounts receivable, net allowance for doubtful accounts of $181 and $185, respectively.		29,138	26,113
Other receivables		121	498
Inventories		30,588	31,325
Prepaid expenses and other current assets		2,592	3,162
Total current assets		132,965	147,767
Property and equipment, net		24,808	25,696
Goodwill	[1]	28,709	28,866
Intangibles, net		42,702	43,465
Deposits and other assets		2,138	2,415
Total assets		231,322	248,209
Current liabilities:
Accounts payable		11,760	11,027
Accrued payroll		11,469	13,337
Accrued expenses and other current liabilities		4,979	5,260
Total current liabilities		28,208	29,624
Deferred income tax		879	879
Deferred rent		8,078	8,060
Other liabilities		349	489
Contingently issuable common stock		14,800	14,600
Convertible notes		72,156	70,407
Total liabilities		$ 124,470	$ 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. 67,947,684 and 67,321,769 shares issued, respectively. 67,767,730 and 67,159,511 shares outstanding, respectively.		68	67
Treasury stock, at cost, 179,954 and 162,258 shares, respectively.		(2,619)	(2,328)
Additional paid-in capital		381,516	372,639
Accumulated deficit		(272,715)	(248,500)
Accumulated other comprehensive income		602	2,272
Total stockholders’ equity		106,852	124,150
Total liabilities and stockholders’ equity		$ 231,322	$ 248,209

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