COMMON STOCK AND STOCK-BASED COMPENSATION (Details) (USD $) In Thousands, except Share data, unless otherwise specified	0 Months Ended	3 Months Ended				1 Months Ended	3 Months Ended			3 Months Ended														1 Months Ended	3 Months Ended			3 Months Ended										1 Months Ended			3 Months Ended
	Jul. 27, 2012	Jul. 28, 2012	Jul. 30, 2011	Jul. 28, 2012 2010 Stock Plan	Jul. 30, 2011 2010 Stock Plan	Jul. 31, 2012 2010 Stock Plan Stock options	Jul. 28, 2012 2010 Stock Plan Stock options	Jul. 30, 2011 2010 Stock Plan Stock options	Jul. 28, 2012 2010 Stock Plan Stock options	Jul. 28, 2012 2010 Stock Plan Stock options Fiscal 2013	Jul. 28, 2012 2010 Stock Plan Stock options Fiscal 2012	Jul. 28, 2012 2010 Stock Plan Stock options $9.24	Jul. 28, 2012 2010 Stock Plan Stock options $10.70	Jul. 28, 2012 2010 Stock Plan Stock options $8.64	Jul. 28, 2012 2010 Stock Plan Restricted Stock Awards (RSA's)	Jul. 30, 2011 2010 Stock Plan Restricted Stock Awards (RSA's)	Jul. 28, 2012 2010 Stock Plan Restricted Stock Units (RSUs)	Jul. 30, 2011 2010 Stock Plan Restricted Stock Units (RSUs)	Jul. 28, 2012 2010 Stock Plan Restricted Stock Awards (RSA's) and Restricted Stock Units (RSU's) Cliff vesting Fiscal 2011	Jul. 28, 2012 2010 Stock Plan Restricted Stock Awards (RSA's) and Restricted Stock Units (RSU's) Equal annual installments Fiscal 2012	Jul. 28, 2012 2010 Stock Plan Restricted Stock Awards (RSA's) and Restricted Stock Units (RSU's) Equal annual installments Fiscal 2011	Jul. 28, 2012 2007 Stock Plan	Jul. 30, 2011 2007 Stock Plan	Jul. 31, 2012 2007 Stock Plan Stock options	Jul. 28, 2012 2007 Stock Plan Stock options	Jul. 30, 2011 2007 Stock Plan Stock options	Jul. 28, 2012 2007 Stock Plan Stock options	Jul. 28, 2012 2007 Stock Plan Stock options Fiscal 2013	Jul. 28, 2012 2007 Stock Plan Stock options Fiscal 2012	Jul. 28, 2012 2007 Stock Plan Stock options $8.64	Jul. 28, 2012 2007 Stock Plan Stock options $2.72	Jul. 28, 2012 2007 Stock Plan Stock options $6.46	Jul. 28, 2012 2007 Stock Plan Stock options $8.13	Jul. 28, 2012 2007 Stock Plan Stock options $10.55	Jul. 28, 2012 2007 Stock Plan Stock options $8.10	Jul. 28, 2012 2007 Stock Plan Restricted Stock Awards (RSA's)	Jul. 30, 2011 2007 Stock Plan Restricted Stock Awards (RSA's)	Apr. 30, 2007 2007 Stock Plan Restricted Stock Units (RSUs)	Jul. 28, 2012 2007 Stock Plan Restricted Stock Units (RSUs)	Apr. 30, 2007 2007 Stock Plan Converted from RSA's to RSU's	Jul. 28, 2012 2000 and 2004 Stock Plans Stock options	Jul. 28, 2012 2000 and 2004 Stock Plans Stock options $11.44	Jul. 28, 2012 Probable 2010 Stock Plan Restricted Stock Awards (RSA's) and Restricted Stock Units (RSU's) Cliff vesting Fiscal 2011	Jul. 28, 2012 Probable 2010 Stock Plan Restricted Stock Awards (RSA's) and Restricted Stock Units (RSU's) Equal annual installments Fiscal 2012	Jul. 28, 2012 Probable 2010 Stock Plan Restricted Stock Awards (RSA's) and Restricted Stock Units (RSU's) Equal annual installments Fiscal 2011	Jul. 28, 2012 Target 2010 Stock Plan Restricted Stock Awards (RSA's) and Restricted Stock Units (RSU's) Cliff vesting Fiscal 2011	Jul. 28, 2012 Target 2010 Stock Plan Restricted Stock Awards (RSA's) and Restricted Stock Units (RSU's) Equal annual installments Fiscal 2012
Stock Issued or Granted During Period, Share-based Compensation [Abstract]
Balance at the beginning of the period		38,375,678	38,312,243
Options exercised		0	(21,975)				0																		0																0
Restricted stock awards vested		27,000	28,860
Balance at the end of the period		38,402,678	38,363,078
Common stock cash dividend	$ 2,592
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award expiration period						10 years																		10 years
Award annual vesting percentage						0.333														0.333				0.333
Award vesting period																			5 years		5 years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding at April 28, 2012							240,000																		738,000																251,365
Outstanding at April 28, 2012 - wtd avg exercise price							$ 9.97																		$ 5.79																$ 10.96
Granted						120,000	120,000																	42,500	42,500
Granted - wtd avg exercise price							$ 8.64																		$ 8.64
Options exercised		0	(21,975)				0																		0																0
Exercised - wtd avg exercise price							$ 0.00																		$ 0.00																$ 0.00
Cancelled							0																		0
Cancelled - wtd avg exercise price							$ 0.00																		$ 0.00
Expired																																									(128,105)
Expired - wtd avg exercise price																																									$ 10.50
Outstanding at July 28, 2012							360,000					120,000	120,000	120,000											780,500					42,500	285,000	260,000	35,500	105,000	52,500						123,260
Outstanding at July 28, 2012 - wtd avg exercise price							$ 9.53																		$ 5.95																$ 11.44
Options outstanding - exercise price												$ 9.24	$ 10.70	$ 8.64																$ 8.64	$ 2.72	$ 6.46	$ 8.13	$ 10.55	$ 8.10
Options outstanding - avg remaining life												8 years 2 months 12 days	9 years	9 years 10 months 24 days																9 years 10 months 24 days	6 years 7 months 6 days	7 years	7 years 4 months 24 days	8 years	9 years 1 month 6 days
Share-based Compensation Arrangement By Share-based Payment Award, Options, Exercisable [Abstract]
Options exercisable - exercise price												$ 9.24	$ 10.70																		$ 2.72	$ 6.46										$ 11.44
Options exercisable - wtd avg exercise price									$ 9.97																		$ 4.50
Options exercisable at July 28, 2012							80,000					40,000	40,000												545,000						285,000	260,000									123,260	123,260
Options exercisable - avg remaining life												8 years 2 months 12 days	9 years																		6 years 7 months 6 days	7 years										10 months 24 days
Options outstanding - intrinsic value							137																		2,888																0
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Average expected volatility										66.15%	52.76%																	66.15%	63.55%
Average risk-free interest rate										0.39%	0.63%																	0.39%	0.35%
Dividend yield										2.94%	2.66%																	2.94%	2.84%
Expected life of options (in years)										7 years 2 months 5 days	7 years 0 months 11 days																	7 years 2 months 5 days	7 years 0 months 11 days
Weighted-average grant-date fair value										$ 4.13	$ 4.27																	$ 4.13	$ 3.75
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Unvested and unissued at April 28, 2012															740,000		180,000
Awarded															0		0																			27,000
Vested															0		0
Forfeited and cancelled															0		0
Unvested and unissued at July 28, 2012															740,000		180,000
Number of shares																			640,000	100,000	304,000																			225,000
Weighted average value																			$ 9.70	$ 8.10	$ 9.70
Unearned compensation expense																																											3,562	606	823	3,562	606
CEO's RSU award issuance and delivery conditions, waiting period after termination																																						30 days
Number of non-option equity instruments vested and outstanding																																							225,000
Compensation Expense		$ 991	$ 1,110	$ 631	$ 657		$ 133	$ 109							$ 366	$ 321	$ 132	$ 227				$ 360	$ 453		$ 127	$ 144										$ 233	$ 309