Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Oct. 01, 2016		Oct. 03, 2015
Operating activities:
Net (loss) income	$ (898)		$ 36
Adjustments to reconcile net (loss) income to net cash provided by (used in) operating activities:
Depreciation and amortization	461		389
Change in fair value of earn-out liability	86		(129)
Stock-based compensation	1,270		725
Provision for doubtful accounts	66		36
Deferred income taxes			2
Changes in operating assets and liabilities:
Accounts receivable	1,290		565
Inventories	(1,572)		(2,065)
Prepaid expenses and other current assets	(839)		(156)
Other long-term assets	77		37
Accounts payable	249		801
Accrued compensation	2		(552)
Accrued expenses	16		(180)
Accrued warranty	(33)		59
Deferred revenue	(6)		32
Other long-term liabilities	26		46
Net cash provided by (used in) operating activities	195		(354)
Investing activities:
Acquisition of property and equipment	(792)		(731)
Payment on earn-out liability	(313)		(328)
Net cash used in investing activities	(1,105)		(1,059)
Financing activities:
Proceeds from stock option exercises	650		747
Repurchase of common stock	(59)		(1,543)
Repurchase of vested stock options			(275)
Taxes paid related to net share settlements of equity awards	(99)		(606)
Net cash provided by (used in) financing activities	492		(1,677)
Net decrease in cash and cash equivalents	(418)		(3,090)
Cash and cash equivalents, beginning of period	9,995	[1]	13,303
Cash and cash equivalents, end of period	9,577		10,213
Cash paid during the period for:
Income taxes	$ 37		$ 33

[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 2, 2016.