Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Oct. 03, 2015		Sep. 27, 2014
Operating activities:
Net income	$ 36		$ 1,274
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	389		307
Change in fair value of earn-out liability	(129)		303
Stock-based compensation cost recognized	725		722
Provision for doubtful accounts	36		49
Deferred income taxes	2
Changes in operating assets and liabilities:
Accounts receivable	565		(282)
Inventories	(2,065)		1,001
Prepaid expenses and other current assets	(156)		28
Other long-term assets	37		65
Accounts payable	801		(436)
Accrued compensation	(552)		(389)
Accrued expenses	(180)		(73)
Accrued warranty	59		70
Deferred revenue	32		42
Other long-term liabilities	46		(21)
Net cash (used in) provided by operating activities	(354)		2,660
Investing activities:
Acquisition of property and equipment	(731)		(472)
Payment on earn-out liability	(328)		(361)
Net cash used in investing activities	(1,059)		(833)
Financing activities:
Proceeds from stock option exercises	747		1,182
Repurchase of common stock	(1,543)		(3,411)
Repurchase of vested stock options	(275)
Taxes paid related to net share settlements of equity awards	(606)
Net cash used in financing activities	(1,677)		(2,229)
Net decrease in cash and cash equivalents	(3,090)		(402)
Cash and cash equivalents, beginning of period	13,303	[1]	13,444
Cash and cash equivalents, end of period	10,213		13,042
Cash paid during the period for:
Income taxes	$ 33		$ 47

[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 January 3, 2015.