Condensed Consolidated Balance Sheets (unaudited) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 24,333	$ 25,116
Restricted cash and time deposits	4,918	272
Accounts receivable, net	16,926	14,295
Inventories	9,374	9,657
Other current assets	2,177	2,378
Total current assets	57,728	51,718
Property and equipment, net	2,985	3,130
Intangible assets, net	893	1,064
Other assets	264	348
Total assets	61,870	56,260
Current liabilities:
Deferred consideration payable	233	233
Accounts payable	9,296	8,353
Accrued liabilities	9,974	9,195
Deferred revenue	7,223	6,146
Other current liabilities	4,778	156
Total current liabilities	31,504	24,083
Other long-term liabilities	3,968	3,478
Commitments and contingencies (Note 14)
Stockholders' equity:
Preferred Stock, $0.01 par value: Authorized — 1,000 shares; no shares issued or outstanding	0	0
Common Stock, $0.0017 par value: Authorized---16,000 shares; Issued---8,435 shares in 2017 and 8,425 shares in 2016; Outstanding — 6,812 shares in 2017 and 6,802 shares in 2016	270	270
Additional paid-in capital	1,288,135	1,287,336
Accumulated deficit	(1,242,501)	(1,239,308)
Treasury stock — 1,623 shares in 2017 and 2016	(18,098)	(18,098)
Accumulated other comprehensive loss	(1,408)	(1,501)
Total stockholders' equity	26,398	28,699
Total liabilities and stockholders' equity	$ 61,870	$ 56,260