Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 15,541	$ 26,120
Restricted cash	2,001	2,001
Marketable securities	18,496	20,988
Accounts receivable, net allowance for doubtful accounts of $1,080 and $1,037, respectively.	30,386	34,430
Other receivables	952	1,787
Inventories	42,694	41,160
Prepaid expenses and other current assets	2,886	3,359
Total current assets	112,956	129,845
Property and equipment, net	22,275	23,265
Goodwill	120,736	120,711
Intangibles, net	83,560	84,511
Deposits and other assets	1,335	1,352
Total assets	340,862	359,684
Current liabilities:
Accounts payable	9,612	13,237
Accrued payroll	20,162	19,997
Accrued expenses and other current liabilities	10,585	11,668
Total current liabilities	40,359	44,902
Deferred income taxes	879	879
Deferred rent	7,908	7,949
Other liabilities	3,727	3,783
Contingently issuable common stock	13,400	12,200
Convertible notes	179,669	177,178
Total liabilities	245,942	246,891
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; 135,000,000 shares authorized. 83,167,489 and 82,986,244 shares issued, respectively. 82,955,250 and 82,774,005 shares outstanding, respectively.	83	83
Treasury stock, at cost, 212,239 shares.	(2,942)	(2,942)
Additional paid-in capital	570,850	567,765
Accumulated deficit	(474,915)	(453,601)
Accumulated other comprehensive income	1,844	1,488
Total stockholders’ equity	94,920	112,793
Total liabilities and stockholders’ equity	$ 340,862	$ 359,684