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Note 12 - Stock Incentive Plans - Activity for Time-based and Performance-based Restricted Stock (Details) - $ / shares
1 Months Ended 12 Months Ended
Feb. 03, 2018
Feb. 02, 2019
Dec. 30, 2017
Restricted Stock [Member]      
Outstanding (in shares) 361,539   316,116
Outstanding, weighted average grant date fair value (in dollars per share) $ 10.97   $ 13.30
Granted (in shares) 3,479 208,913 258,060
Granted, weighted average grant date fair value (in dollars per share) $ 9.25 $ 8.68 $ 9.18
Vested (in shares) (129) (178,329) (179,132)
Vested, weighted average grant date fair value (in dollars per share) $ 11.65 $ 11.82 $ 12.20
Forfeited (in shares) (7,477) (12,345) (33,505)
Forfeited, weighted average grant date fair value (in dollars per share) $ 10.70 $ 10.99 $ 12.55
Canceled or expired (in shares)  
Canceled, weighted average grant date fair value (in dollars per share)  
Outstanding (in shares)   379,778 361,539
Outstanding, weighted average grant date fair value (in dollars per share)   $ 9.31 $ 10.97
Performance Shares [Member]      
Outstanding (in shares) 289,615   241,141
Outstanding, weighted average grant date fair value (in dollars per share) $ 13.66   $ 15.39
Granted (in shares)   83,256 83,897
Granted, weighted average grant date fair value (in dollars per share)   $ 8.60 $ 8.85
Vested (in shares)   (6,323) (6,472)
Vested, weighted average grant date fair value (in dollars per share)   $ 20.58 $ 20.54
Forfeited (in shares)   (15,247)
Forfeited, weighted average grant date fair value (in dollars per share)   $ 14.28
Canceled or expired (in shares)   (199,395) (13,704)
Canceled, weighted average grant date fair value (in dollars per share)   $ 15.47 $ 13.68
Outstanding (in shares)   167,153 289,615
Outstanding, weighted average grant date fair value (in dollars per share)   $ 8.73 $ 13.66