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Note E - Accrued Liabilities (Tables)
12 Months Ended
Apr. 30, 2016
Notes Tables  
Schedule of Accrued Liabilities [Table Text Block]
(In thousands)   April 30, 2016   April 30, 2015
Employee compensation   $ 3,684     $ 3,954  
Cash overdrafts (see Note B)     -       1,587  
Deferred sales tax (see Note B)     2,736       2,762  
Interest     -       230  
Other     4,825       4,175  
    $ 11,245     $ 12,708