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ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Aug. 01, 2015
Aug. 02, 2014
Aug. 01, 2015
Aug. 02, 2014
Jan. 31, 2015
Equity [Abstract]          
Accumulated other comprehensive income     $ 570 $ 703 $ 703
Amortization of postretirement benefit         (133)
Ending balance $ 570 $ 703 $ 570 $ 703 $ 570