Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 29, 2013	Dec. 30, 2012
Current assets:
Cash and cash equivalents	$ 14,871	$ 22,578
Short-term investment in TowerJazz Semiconductor Ltd.	0	345
Accounts receivable, net of allowances for doubtful accounts of $0 and $20, respectively	4,995	1,242
Inventories	2,851	3,028
Other current assets	672	986
Total current assets	23,389	28,179
Property and equipment, net	3,007	2,659
Other assets	238	186
TOTAL ASSETS	26,634	31,024
Current liabilities:
Revolving line of credit	1,000	0
Trade payables	3,087	1,965
Accrued liabilities	2,606	1,214
Current portion of capital lease obligations	194	160
Total current liabilities	6,887	3,339
Long-term liabilities:
Capital lease obligations, less current portion	0	266
Other long-term liabilities	114	141
Total liabilities	7,001	3,746
Commitments and contingencies (see Note 15)
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; 44,780 and 44,506 shares issued and outstanding, respectively	45	45
Additional paid-in capital	205,075	204,797
Accumulated other comprehensive income (loss)	0	(11)
Accumulated deficit	(185,487)	(177,553)
Total stockholders' equity	19,633	27,278
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 26,634	$ 31,024