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Note 17 - Employee Benefit Plans (Details) - Fair values of pension plan assets (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2013
Jun. 30, 2012
Note 17 - Employee Benefit Plans (Details) - Fair values of pension plan assets [Line Items]    
Fair value on plan assets $ 231,060 $ 227,856
Cash and Cash Equivalents [Member] | Level 1 [Member]
    
Note 17 - Employee Benefit Plans (Details) - Fair values of pension plan assets [Line Items]    
Fair value on plan assets 439 222
Cash and Cash Equivalents [Member] | Level 2 [Member]
    
Note 17 - Employee Benefit Plans (Details) - Fair values of pension plan assets [Line Items]    
Fair value on plan assets 287 9,325
Cash and Cash Equivalents [Member]
    
Note 17 - Employee Benefit Plans (Details) - Fair values of pension plan assets [Line Items]    
Fair value on plan assets 726 9,547
Common And Preferred Stocks [Member] | Level 1 [Member]
    
Note 17 - Employee Benefit Plans (Details) - Fair values of pension plan assets [Line Items]    
Fair value on plan assets 18,824 16,585
Common And Preferred Stocks [Member] | Level 2 [Member]
    
Note 17 - Employee Benefit Plans (Details) - Fair values of pension plan assets [Line Items]    
Fair value on plan assets 88,306 72,910
Common And Preferred Stocks [Member]
    
Note 17 - Employee Benefit Plans (Details) - Fair values of pension plan assets [Line Items]    
Fair value on plan assets 107,130 89,495
U.S. Government Securities [Member] | Level 2 [Member]
    
Note 17 - Employee Benefit Plans (Details) - Fair values of pension plan assets [Line Items]    
Fair value on plan assets 13,018 18,159
U.S. Government Securities [Member]
    
Note 17 - Employee Benefit Plans (Details) - Fair values of pension plan assets [Line Items]    
Fair value on plan assets 13,018 18,159
Corporate Bond And Other Fixed Income Securities [Member] | Level 1 [Member]
    
Note 17 - Employee Benefit Plans (Details) - Fair values of pension plan assets [Line Items]    
Fair value on plan assets 775 641
Corporate Bond And Other Fixed Income Securities [Member] | Level 2 [Member]
    
Note 17 - Employee Benefit Plans (Details) - Fair values of pension plan assets [Line Items]    
Fair value on plan assets 101,215 89,411
Corporate Bond And Other Fixed Income Securities [Member]
    
Note 17 - Employee Benefit Plans (Details) - Fair values of pension plan assets [Line Items]    
Fair value on plan assets 101,990 90,052
Other Plan Asset [Member] | Level 2 [Member]
    
Note 17 - Employee Benefit Plans (Details) - Fair values of pension plan assets [Line Items]    
Fair value on plan assets 8,196 20,603
Other Plan Asset [Member]
    
Note 17 - Employee Benefit Plans (Details) - Fair values of pension plan assets [Line Items]    
Fair value on plan assets 8,196 20,603
Level 1 [Member]
    
Note 17 - Employee Benefit Plans (Details) - Fair values of pension plan assets [Line Items]    
Fair value on plan assets 23,608 17,448
Level 2 [Member]
    
Note 17 - Employee Benefit Plans (Details) - Fair values of pension plan assets [Line Items]    
Fair value on plan assets $ 207,452 $ 210,408