Condensed Consolidated Balance Sheets (unaudited) (USD $) In Thousands, unless otherwise specified	Jul. 01, 2012	Jan. 01, 2012
Current assets:
Cash and cash equivalents	$ 26,867	$ 20,203
Short-term investment in TowerJazz Semiconductor Ltd.	432	406
Accounts receivable, net of allowances for doubtful accounts of $20 and $10 , respectively	1,661	1,585
Inventories	2,727	3,764
Other current assets	862	613
Total current assets	32,549	26,571
Property and equipment, net	2,711	2,181
Other assets	214	211
TOTAL ASSETS	35,474	28,963
Current liabilities:
Trade payables	2,105	2,464
Accrued liabilities	1,543	1,118
Deferred royalty revenue	0	8
Current portion of debt and capital lease obligations	287	141
Total current liabilities	3,935	3,731
Long-term liabilities:
Capital lease obligations, less current portion	469	146
Other long-term liabilities	139	148
Total liabilities	4,543	4,025
Commitments and contingencies (see Note 13)
Stockholders' equity:
Preferred stock, $0.001 par value; 10,000 shares authorized; no shares issued and outstanding	0	0
Common stock, $0.001 par value; 100,000 shares authorized; 44,016 and 38,636 shares issued and outstanding, respectively	44	39
Additional paid-in capital	203,007	190,025
Accumulated other comprehensive income	76	113
Accumulated deficit	(172,196)	(165,239)
Total stockholders' equity	30,931	24,938
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 35,474	$ 28,963