Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Current Assets:
Cash and cash equivalents	$ 38,107	$ 17,172
Short-term marketable securities	1,626	4,278
Restricted cash	61	1,082
Accounts receivable, net of allowances of $208 and $269	20,763	26,520
Inventories	24,642	24,884
Prepaid expenses and other	4,454	2,147
Deferred income taxes	3,027	2,268
Total Current Assets	92,680	78,351
Fixed assets, net of accumulated depreciation of $28,407 and $27,730	8,100	6,403
Goodwill	12,823	14,471
Purchased intangible assets, net of accumulated amortization of $5,324 and $5,228	12,572	16,937
Deferred income taxes	1,262	1,235
Other assets	944	1,114
Total Assets	128,381	118,511
Current Liabilities:
Accounts payable	7,505	7,229
Deferred revenue	2,070	2,555
Accrued liabilities	9,505	8,859
Total Current Liabilities	19,080	18,643
Deferred revenue	329	548
Other long-term liabilities	1,511	2,119
Total Liabilities	20,920	21,310
Shareholders' Equity:
Common stock, $0.01 par value. Authorized 100,000 shares; issued and outstanding: 16,466 and 16,218	165	162
Additional paid-in capital	111,480	107,908
Accumulated other comprehensive income (loss)	(3,127)	118
Accumulated deficit	(1,057)	(10,987)
Total Shareholders' Equity	107,461	97,201
Total Liabilities and Shareholders' Equity	$ 128,381	$ 118,511