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Note F - Accrued Liabilities (Tables)
12 Months Ended
Jun. 30, 2020
Notes Tables  
Schedule of Accounts Payable and Accrued Liabilities [Table Text Block]
   
2020
   
2019
 
Customer deposits
  $
11,541
    $
14,924
 
Salaries and wages
   
5,116
     
6,982
 
Distributor rebates
   
3,769
     
2,943
 
Retirement benefits
   
3,559
     
2,730
 
Warranty
   
3,520
     
3,034
 
Other
   
8,875
     
11,033
 
    $
36,380
    $
41,646