Consolidated Statement of Stockholders' Equity (USD $) Share data in Thousands	Total	Common Stock [Member]	Preferred Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]	Business Acquisition, Cost of Acquired Entity, Purchase Price, Equity Consideration [Member] Additional Paid-in Capital [Member]
Balance at Jan. 02, 2011	$ 44,907,000	$ 216,000	$ 0	$ 3,474,000	$ 39,823,000	$ 1,535,000	$ (141,000)
Common Stock, Shares, Outstanding at Jan. 02, 2011		21,632,402
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures		0
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	2,779,000	0	0	2,779,000	0	0	0
Stock Issued During Period, Value, Stock Options Exercised	551,000	1,000	0	550,000	0	0	0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period		97,376
Vesting of non-vested shares and excess tax benefits	152,000	1,000	0	151,000	0	0	0
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures		20,459
Change in postretirement benefit obligations	(382,000)	0	0	0	0	(382,000)	0
Net Income (Loss) Attributable to Parent	11,218,000	0	0	0	11,218,000	0	0
Change in valuation of interest rate swap	(68,000)	0	0	0	0	(68,000)	0
Balance at Jan. 01, 2012	59,157,000	218,000	0	6,954,000	51,041,000	1,085,000	(141,000)
Common Stock, Shares, Outstanding at Jan. 01, 2012	21,750	21,750,237
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures		0
Stock-based compensation	279,000
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	1,522,000	0	0	1,522,000	0	0	0
Stock Issued During Period, Value, Stock Options Exercised	295,000	0	0	295,000	0	0	0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	(69,824)	69,824
Stock Issued During Period, Shares, Other		666,090
Conversion of stock options	0	7,000	0	(7,000)	0	0	0
Vesting of non-vested shares and excess tax benefits	825,000	2,000	0	823,000	0	0	0
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures		255,860
Issuance of preferred stock	57,711,000	0	0		0	0	0
Distribution of Fiesta Restaurant Group (Note 3)	(9,870,000)	0	0	0	(9,870,000)	0	0
Net Income (Loss) Attributable to Parent	(3,777,000)	0	0	0	(3,777,000)	0	0
Change in valuation of interest rate swap	68,000	0	0	0	0	68,000	0
Balance at Jul. 01, 2012	$ 105,931,000	$ 227,000	$ 0	$ 67,298,000	$ 37,394,000	$ 1,153,000	$ (141,000)
Common Stock, Shares, Outstanding at Jul. 01, 2012	23	22,742,011