Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014		Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 42,179		$ 95,152
Marketable securities	77,418		31,313
Accounts receivable, net allowance for doubtful accounts of $195 and $399, respectively.	25,448		24,972
Other receivables	690		310
Inventories	24,036		19,558
Prepaid expenses and other current assets	2,537		2,328
Total current assets	172,308		173,633
Property and equipment, net	11,224		7,338
Goodwill	29,101	[1]	29,103	[1]
Intangibles, net	42,980		43,096
Deposits and other assets	2,525		3,027
Total assets	258,138		256,197
Current liabilities:
Accounts payable	11,232		6,265
Accrued payroll	9,796		11,476
Accrued expenses and other current liabilities	4,231		3,094
Contingently issuable common stock	34,800		46,500
Total current liabilities	60,059		67,335
Deferred income tax	1,024		1,135
Deferred rent	3,749		1,585
Contingently issuable common stock	14,300		14,400
Convertible notes	67,901		67,101
Total liabilities	147,033		151,556
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; 75,000,000 shares authorized. 64,050,204 and 63,866,392 shares issued, respectively. 64,004,986 and 63,866,392 shares outstanding, respectively.	64		64
Treasury stock, at cost, 45,218 and 0 shares, respectively.	(644)		0
Additional paid-in capital	323,615		321,756
Accumulated deficit	(210,787)		(216,082)
Accumulated other comprehensive loss	(1,143)		(1,097)
Total stockholders’ equity	111,105		104,641
Total liabilities and stockholders’ equity	$ 258,138		$ 256,197

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