Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Sep. 29, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 13,734	$ 10,789	[1]
Accounts receivable, net of allowance for doubtful accounts of $148 at September 29, 2012 and $162 at December 31, 2011	5,496	5,551	[1]
Inventories, net	7,542	6,659	[1]
Prepaid expenses and other current assets	1,117	464	[1]
Current assets of discontinued operations	724	6,043	[1]
Total current assets	28,613	29,506	[1]
Property and equipment, net	468	325	[1]
Intangible assets, net	602	745	[1]
Goodwill	533	533	[1]
Other long-term assets	219	199	[1]
Non-current assets of discontinued operations	4	841	[1]
Total assets	30,439	32,149	[1]
Current liabilities:
Accounts payable	1,529	1,580	[1]
Accrued compensation	1,987	1,180	[1]
Accrued expenses	1,000	1,920	[1]
Accrued warranty	528	556	[1]
Deferred revenue	861	1,014	[1]
Current liabilities of discontinued operations	67	2,663	[1]
Total current liabilities	5,972	8,913	[1]
Long-term liabilities:
Other long-term liabilities	706	810	[1]
Total liabilities	6,678	9,723	[1]
Stockholders' equity:
Convertible preferred stock, $0.01 par value: Authorized: 2,000,000 shares; Issued and outstanding: 500,000 shares at September 29, 2012 and at December 31, 2011	5	5	[1]
Common stock, $0.01 par value: Authorized: 30,000,000 shares; Issued and outstanding 8,960,397 and 8,917,824 shares at September 29, 2012 and December 31, 2011, respectively	94	92	[1]
Additional paid-in capital	42,712	42,032	[1]
Accumulated other comprehensive loss	0	(35)	[1]
Treasury stock, at cost (419,784 and 167,885 shares at September 29, 2012 and December 31, 2011, respectively)	(1,656)	(1,078)	[1]
Accumulated deficit	(17,394)	(18,590)	[1]
Total stockholders' equity	23,761	22,426	[1]
Total liabilities and stockholders' equity	$ 30,439	$ 32,149	[1]

[1] Derived from the audited consolidated financial statements included in the annual report filed on Form 10-K with the SEC for the year ended December 31, 2011.