Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012		Apr. 02, 2011
Operating activities:
Net income	$ 1,605		$ 566
Less income from discontinued operations	1,870		381
(Loss) income from continuing operations	(265)		185
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation and amortization	113		73
Change in fair value of earn-out liability	29		0
Stock compensation cost recognized	147		129
Provision for doubtful accounts	(24)		(12)
Provision for inventory reserves	67		(18)
Changes in operating assets and liabilities, net of assets and liabilities acquired:
Accounts receivable	433		(554)
Inventories	(446)		(157)
Prepaid expenses and other current assets	(708)		(46)
Other long term assets	16		(53)
Accounts payable	(36)		(96)
Accrued compensation	307		(172)
Accrued expenses	(751)		(7)
Accrued warranty	(17)		13
Deferred revenue	(107)		(12)
Other long-term liabilities	(86)		0
Net cash used in operating activities	(1,328)		(727)
Investing activities:
Acquisition of property and equipment	(121)		(36)
Net cash used in investing activities	(121)		(36)
Cash flows from financing activities:
Proceeds from stock option exercises	236		112
Repurchase of common stock	(188)		(302)
Net cash provided by (used in) financing activities	48		(190)
Net cash (used in) provided by operating activities from discontinued operations	(199)		836
Net cash provided by in investing activities from discontinued operations	4,632		0
Net cash provided by financing activities from discontinued operations	0		0
Effect of foreign exchange rate changes from discontinued operations	35		0
Net cash provided by discontinued operations	4,468		836
Net increase (decrease) in cash and cash equivalents	3,067		(117)
Cash and cash equivalents, beginning of year	10,789	[1]	8,347
Cash and cash equivalents, end of year	13,856		8,230
Supplemental disclosure of cash flow information:
Income taxes	13		5
Interest paid	$ 0		$ 0

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