Condensed Consolidated Statements of Cash Flows (unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Apr. 01, 2012	Apr. 03, 2011
Cash flows from operating activities:
Net income (loss)	$ (3,721)	$ (878)
Adjustments to reconcile net income (loss) to net cash provided by (used for) operating activities:
Depreciation and amortization	290	335
Stock-based compensation	384	443
Write-down of inventories	329	118
Tax effect on other comprehensive income	(63)	0
Bad Debt	10	0
Changes in operating assets and liabilities:
Accounts receivable	(85)	453
Inventories	318	(736)
Other assets	(195)	(22)
Trade payables	(420)	(14)
Accrued liabilities	336	(212)
Deferred royalty revenue	(8)	125
Other long-term liabilities	(9)	5
Net cash provided by (used for) operating activities	(2,834)	(383)
Cash flows from investing activities:
Capital expenditures for property and equipment	(69)	(310)
Net cash provided by (used for) investing activities	(69)	(310)
Cash flows from financing activities:
Payment of debt and capital lease obligations	(116)	(165)
Proceeds from issuance of common stock	39	1,400
Net cash provided by (used for) financing activities	(77)	1,235
Net increase (decrease) in cash and cash equivalents	(2,980)	542
Cash and Cash Equivalents at beginning of period	20,203	21,956
Cash and Cash Equivalents at end of period	17,223	22,498
Supplemental schedule of non-cash investing and financing activities :
Capital lease obligation to finance capital expenditures and related maintenance	917	243
Purchase of fixed assets included in accounts payable	$ 765	$ 67