CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 44,094	$ 44,948
Accounts receivable, net of allowances of $8,445 and $8,618 at June 30, 2017 and December 31, 2016, respectively	40,864	43,520
Inventories	41,160	50,701
Prepaid expenses	8,537	6,031
Other current assets	9,925	5,805
Total current assets	144,580	151,005
Property and equipment, net	23,273	30,146
Intangible assets, net	15,995	22,932
Goodwill	32,643	32,643
Long-term deferred tax assets, net	1,355	1,245
Other long-term assets	7,404	11,610
Total assets	225,250	249,581
Current liabilities:
Accounts payable	28,620	26,435
Accrued compensation and benefits	32,734	25,387
Accrued expenses and other current liabilities	32,848	34,088
Income taxes payable	806	1,012
Short-term debt	5,072	5,000
Deferred revenues	122,475	146,014
Total current liabilities	222,555	237,936
Long-term debt	191,300	188,795
Long-term deferred tax liabilities, net	0	913
Long-term deferred revenues	72,091	79,670
Other long-term liabilities	9,726	12,178
Total liabilities	495,672	519,492
Contingencies (Note 7)
Stockholders' deficit:
Common stock	423	423
Additional paid-in capital	1,038,308	1,043,063
Accumulated deficit	(1,283,822)	(1,271,148)
Treasury stock at cost	(22,238)	(32,353)
Accumulated other comprehensive loss	(3,093)	(9,896)
Total stockholders' deficit	(270,422)	(269,911)
Total liabilities and stockholders' deficit	$ 225,250	$ 249,581