Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 25, 2011	Dec. 26, 2010
Consolidated Balance Sheets [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 382	$ 350
Property and equipment, accumulated depreciation	104,773	91,383
Other intangibles, accumulated amortization	2,037	1,522
Series A Redeemable Convertible Preferred Stock	10.00%	10.00%
Series A 10% Redeemable Convertible Preferred Stock, par value	$ 0.01	$ 0.01
Series A 10% Redeemable Convertible Preferred Stock, shares authorized	25,000	25,000
Series A 10% Redeemable Convertible Preferred Stock, shares issued	25,000	25,000
Series A 10% Redeemable Convertible Preferred Stock, shares outstanding	25,000	25,000
Series A 10% Redeemable Convertible Preferred Stock, liquidation preference	$ 25,000	$ 25,000
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	34,150,389	33,981,509
Common stock, shares outstanding	34,150,389	33,981,509
Treasury stock, shares	71,950	71,950