Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Sep. 28, 2013	Dec. 29, 2012
Current assets:
Cash and cash equivalents	$ 14,089	$ 11,901	[1]
Accounts receivable, net of allowance for doubtful accounts of $206 at September 28, 2013 and $146 at December 29, 2012	5,743	5,480	[1]
Inventories	9,998	8,035	[1]
Prepaid expenses and other current assets	534	1,129	[1]
Current assets of discontinued operations	0	510	[1]
Total current assets	30,364	27,055	[1]
Property and equipment, net	526	483	[1]
Intangible assets, net	382	554	[1]
Goodwill	533	533	[1]
Other long-term assets	233	287	[1]
Total assets	32,038	28,912	[1]
Current liabilities:
Accounts payable	2,077	2,105	[1]
Accrued compensation	1,538	1,563	[1]
Accrued expenses	1,370	1,242	[1]
Accrued warranty	472	453	[1]
Deferred revenue	1,062	1,004	[1]
Total current liabilities	6,519	6,367	[1]
Long-term liabilities:
Other long-term liabilities	441	640	[1]
Total liabilities	6,960	7,007	[1]
Stockholders’ equity:
Convertible preferred stock, $0.01 par value: Authorized: 2,000,000 shares; Issued and outstanding: 0 and 500,000 shares at September 28, 2013 and at December 29, 2012, respectively	0	5	[1]
Common stock, $0.01 par value: Authorized: 30,000,000 shares; Issued and outstanding 9,818,012 and 8,452,971 shares at September 28, 2013 and at December 29, 2012, respectively	103	94	[1]
Additional paid-in capital	40,308	38,958	[1]
Accumulated deficit	(15,333)	(17,152)	[1]
Total stockholders’ equity	25,078	21,905	[1]
Total liabilities and stockholders’ equity	$ 32,038	$ 28,912	[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 29, 2012.