Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 28, 2014		Jun. 29, 2013
Operating activities:
Net income	$ 784		$ 1,289
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	203		240
Change in fair value of earn-out liability	191		91
Stock-based compensation expense	478		334
Provision for doubtful accounts	36		60
Changes in operating assets and liabilities:
Accounts receivable	50		(728)
Inventories	852		(905)
Prepaid expenses and other current assets	(10)		34
Other long-term assets	44		7
Accounts payable	(270)		468
Accrued compensation	(662)		(30)
Accrued expenses	(239)		(212)
Accrued warranty	38		4
Deferred revenue	(50)		14
Other long-term liabilities	(22)
Net cash provided by operating activities	1,423		666
Investing activities:
Acquisition of property and equipment	(344)		(72)
Payment on earn-out liability	(264)		(198)
Net cash used in investing activities	(608)		(270)
Financing activities:
Proceeds from stock option exercises	849		814
Repurchase of common stock	(2,246)		(76)
Payment of legal costs in connection with tender offer			(40)
Net cash (used in) provided by financing activities	(1,397)		698
Net cash provided by investing activities from discontinued operations			510
Net cash provided by discontinued operations			510
Net (decrease) increase in cash and cash equivalents	(582)		1,604
Cash and cash equivalents, beginning of period	13,444	[1]	11,901
Cash and cash equivalents, end of period	12,862		13,505
Cash paid during the period for:
Income taxes	47		1
Supplemental non-cash financing activities:
Preferred stock conversion into common stock			$ 5

[1] Derived from the audited consolidated financial statements included in the Annual Report on Form 10-K filed with the SEC for the year ended December 28, 2013.