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Note E - Accrued Liabilities (Tables)
6 Months Ended
Oct. 31, 2015
Notes Tables  
Schedule of Accrued Liabilities [Table Text Block]
(In thousands)   October 31, 2015   April 30, 2015
Employee compensation   $ 3,783     $ 3,954  
Cash overdrafts (see Note B)     1,227       1,587  
Deferred sales tax (see Note B)     2,773       2,762  
Other     4,521       4,405  
Total   $ 12,304     $ 12,708