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PRIOR PERIOD REVISIONS (Details) - USD ($)
$ in Thousands
Jan. 31, 2019
Oct. 31, 2018
Apr. 30, 2018
Feb. 01, 2018
Jan. 31, 2018
Nov. 01, 2017
Oct. 31, 2017
May 01, 2017
Apr. 30, 2017
Deferred income taxes, net $ 4,846   $ 4,865            
Accounts payable and accrued expenses 7,019   7,497            
Retained earnings $ 47,609 $ 47,641 47,525 $ 46,162 $ 46,162 $ 49,013 $ 49,013 $ 47,287 $ 47,287
Previously Reported [Member]                  
Deferred income taxes, net     5,060            
Accounts payable and accrued expenses     8,215            
Retained earnings     47,002 45,639   48,490   46,764  
Restatement Adjustment [Member]                  
Deferred income taxes, net     (195)            
Accounts payable and accrued expenses     (718)            
Retained earnings     $ 523 $ 523   $ 523   $ 523