Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 28, 2013		Sep. 29, 2012
Operating activities:
Net income	$ 1,819		$ 1,196
Less income from discontinued operations	0		1,619
Income (loss) from continuing operations	1,819		(423)
Adjustments to reconcile net income (loss) from continuing operations to net cash provided by (used in) operating activities:
Depreciation and amortization	364		310
Change in fair value of earn-out liability	181		195
Stock compensation expense	511		277
Provision for doubtful accounts	60		(24)
Changes in operating assets and liabilities, net of assets and liabilities acquired:
Accounts receivable	(323)		79
Inventories	(1,963)		(883)
Prepaid expenses and other current assets	595		(653)
Other long-term assets	54		(20)
Accounts payable	(28)		(51)
Accrued compensation	(25)		807
Accrued expenses	35		(999)
Accrued warranty	19		(28)
Deferred revenue	58		(153)
Other long-term liabilities	0		21
Net cash provided by (used in) operating activities	1,357		(1,545)
Investing activities:
Acquisition of property and equipment	(235)		(310)
Payment on earn-out liability	(287)		(241)
Net cash used in investing activities	(522)		(551)
Financing activities:
Proceeds from stock option exercises	1,077		405
Repurchase of common stock	(194)		(578)
Payment of legal costs in connection with tender offer	(40)		0
Net cash provided by (used in) financing activities	843		(173)
Net cash provided by operating activities from discontinued operations	0		547
Net cash provided by investing activities from discontinued operations	510		4,632
Effect of foreign exchange rate changes from discontinued operations	0		35
Net cash provided by discontinued operations	510		5,214
Net increase in cash and cash equivalents	2,188		2,945
Cash and cash equivalents, beginning of period	11,901	[1]	10,789
Cash and cash equivalents, end of period	14,089		13,734
Cash paid during the period for:
Income taxes	12		29
Non-cash financing transaction:
Preferred stock conversion into common stock	$ 5		$ 0

[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.