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Note E - Accrued Liabilities (Tables)
6 Months Ended
Oct. 31, 2016
Notes Tables  
Schedule of Accrued Liabilities [Table Text Block]
(In thousands)   October 31, 2016   April 30, 2016
         
Employee compensation   $ 4,450     $ 3,684  
Cash overdrafts (see Note B)     589       -  
Deferred sales tax (see Note B)     3,047       2,736  
Other     4,806       4,825  
                 
Total   $ 12,892     $ 11,245