LONG-TERM DEBT. (Details) (USD $)			12 Months Ended						0 Months Ended			3 Months Ended		0 Months Ended			12 Months Ended							12 Months Ended										12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 29, 2012 G-2 Ltd Supreme Indiana item	Dec. 29, 2012 Sale Leaseback Transaction related to the Indiana Real Estate G-2 Ltd Supreme Indiana	Dec. 29, 2012 Sale Leaseback Transaction related to the Georgia Real Estate G-2 Ltd Supreme Indiana	Dec. 29, 2012 William J. Barrett G-2 Ltd	Dec. 29, 2012 Robert J. Campbell G-2 Ltd	Dec. 29, 2012 Herbert M. Gardner G-2 Ltd	May 12, 2011 William J. Barrett, Herbert M. Gardner and Edward L. Flynn Sale Leaseback Transaction related to the California Real Estate BFG2011 Limited Liability Company	Dec. 29, 2012 Revolving Line of Credit	Dec. 31, 2011 Revolving Line of Credit	Sep. 30, 2011 Revolving Line of Credit JPMC	Oct. 18, 2010 Revolving Line of Credit JPMC	Sep. 14, 2011 Revolving Line of Credit Wells Fargo item	Dec. 29, 2012 Revolving Line of Credit Wells Fargo	Dec. 31, 2011 Revolving Line of Credit Wells Fargo	Dec. 29, 2012 Revolving Line of Credit Wells Fargo Alternate base rate	Dec. 29, 2012 Revolving Line of Credit Wells Fargo Prime rate	Dec. 29, 2012 Revolving Line of Credit Wells Fargo Federal funds rate	Dec. 29, 2012 Revolving Line of Credit Wells Fargo LIBOR	Dec. 29, 2012 Revolving Line of Credit Wells Fargo Minimum	Dec. 29, 2012 Revolving Line of Credit Wells Fargo Minimum Alternate base rate	Dec. 29, 2012 Revolving Line of Credit Wells Fargo Minimum LIBOR	Dec. 29, 2012 Revolving Line of Credit Wells Fargo Maximum	Dec. 29, 2012 Revolving Line of Credit Wells Fargo Maximum Alternate base rate	Dec. 29, 2012 Revolving Line of Credit Wells Fargo Maximum LIBOR	Dec. 29, 2012 Capital lease obligation under a sale/leaseback transaction, collateralized by real estate	Dec. 31, 2011 Capital lease obligation under a sale/leaseback transaction, collateralized by real estate	Dec. 31, 2011 Obligation under industrial development revenue bonds, collateralized by real estate	Dec. 29, 2012 Term loan, collateralized by specific equipment	Dec. 31, 2011 Term loan, collateralized by specific equipment	Dec. 29, 2012 Letters of credit related to the workers' compensation insurances policies	Dec. 31, 2011 Letters of credit related to the workers' compensation insurances policies	Dec. 29, 2012 Irrevocable letters of credit item	Dec. 31, 2011 Irrevocable letters of credit
Long-term debt
Outstanding amount	$ 14,105,997	$ 15,948,659								$ 14,089,063	$ 11,653,460																	$ 3,528,374	$ 700,000	$ 16,934	$ 66,825
Less, current maturities	16,934	246,192																										100,000
Long-term debt	14,089,063	15,702,467																										3,400,000
Interest rate (as a percent)																											5.50%	5.50%		2.75%	2.75%
Maximum borrowing capacity													30,000,000	45,000,000	45,000,000
Maximum borrowing capacity																																3,100,000	3,500,000		900,000
Interest rate at the end of the period (as a percent)																3.04%
Number of financial covenants to be complied with														2
Unused credit capacity under the agreement																12,300,000
Additional deferred financing costs																1,000,000
Net book value of deferred financing costs written off												800,000
Option purchase price				3,600,000	1,800,000
Ownership interest received in the purchaser (as a percent)									64.52%
Number of lease agreements			2
General partner ownership interest percentage			1.00%
Limited partner ownership interest percentage						12.375%	12.375%	12.375%
Checks outstanding in excess of bank balances	400,000	200,000
Quarterly commitment fee (as a percent)																					0.20%			0.50%
Number of industrial revenue bonds																																		2
Maturities of long-term debt
2013	16,934
2017	14,089,063
Variable interest rate basis																	the higher of (a)the prime rate and (b)the federal funds rate plus 0.50%	prime rate	federal funds rate	LIBOR
Basis spread on variable interest rate basis (as a percent)																			0.50%			0.50%	1.50%		1.50%	2.50%
Minimum aggregate principal amount of secured borrowing commitments to establish with the lender prior to March 29, 2013																					10,000,000
Contingent reduction in the maximum borrowing capacity if additional borrowing commitments are not obtained prior to March 29, 2013															$ 10,000,000