Note 9. Stockholders' Equity (Detail) - Statement of Stockholders’ Equity (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended						6 Months Ended			6 Months Ended
	Jun. 24, 2012	Jun. 26, 2011	Jun. 24, 2012	Jun. 26, 2011	Jun. 24, 2012 Common Stock Class A Shares [Member]	Jun. 24, 2012 Common Stock Class A [Member]	Jun. 24, 2012 Common Stock Class B [Member]	Dec. 25, 2011 Common Stock Class B [Member]	Jun. 24, 2012 Additional Paid-in Capital [Member]	Jun. 24, 2012 Accumulated Other Comprehensive Income (Loss) [Member]	Dec. 25, 2011 Accumulated Other Comprehensive Income (Loss) [Member]	Jun. 24, 2012 Retained Earnings [Member]
Balance at December 25, 2011 (in Shares)					22,548,741
Balance at December 25, 2011			$ 33,953			$ 112,744	$ 2,743	$ 2,743	$ 28,711	$ (185,116)	$ (185,116)	$ 74,871
Net loss	(146,296)	(15,382)	(180,720)	(41,186)								(180,720)
Exercise of stock options (in Shares)					20,899
Exercise of stock options			45			104			(59)
Performance accelerated restricted stock (in Shares)					233,553
Performance accelerated restricted stock			(63)			1,168			(1,252)			21
Stock-based compensation			650						650
Issuance of common stock warrants			16,912						16,912
Other (in Shares)					165
Other			(39)			1			(40)
Balance at June 24, 2012 (in Shares)					22,803,358
Balance at June 24, 2012	$ (129,262)		$ (129,262)			$ 114,017	$ 2,743	$ 2,743	$ 44,922	$ (185,116)	$ (185,116)	$ (105,828)