Annual report pursuant to Section 13 and 15(d)

Note 1 - Description of Business and Summary of Significant Accounting Policies (Details Textual)

v3.19.3
Note 1 - Description of Business and Summary of Significant Accounting Policies (Details Textual)
$ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Mar. 31, 2019
USD ($)
Mar. 31, 2019
USD ($)
Jun. 30, 2019
USD ($)
Jun. 30, 2018
USD ($)
Jun. 30, 2017
USD ($)
Jul. 01, 2019
USD ($)
Jul. 01, 2018
USD ($)
Advertising Expense     $ 4,100 $ 3,800 $ 4,500    
Available-for-Sale Securities, Debt Maturities, Date Range Low     90 days        
Available-for-sale Securities, Debt Maturities, Date Range High     6 years        
Impairment of Long-Lived Assets Held-for-use     $ 0 0 $ 0    
Number of Reporting Units     1        
Goodwill, Impairment Loss     $ 0        
Available-for-sale Securities, Total     38,200 54,300     $ 54,300
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax, Total             35,400
Deferred Tax Liabilities, Other Comprehensive Income     4,542 8,384     8,300
Accumulated Other Comprehensive Income (Loss), Net of Tax, Total     (83,521) (44,814)      
Retained Earnings (Accumulated Deficit), Ending Balance     $ 931,934 $ 876,931      
Accounting Standards Update 2016-01 [Member]              
Accumulated Other Comprehensive Income (Loss), Net of Tax, Total             (27,100)
Retained Earnings (Accumulated Deficit), Ending Balance             27,100
Accounting Standards Update 2016-01 [Member] | Other Nonoperating Income (Expense) [Member]              
Equity Securities, FV-NI, Gain (Loss), Total $ 12,300 $ 2,900          
Accounting Standards Update 2018-02 [Member]              
Accumulated Other Comprehensive Income (Loss), Net of Tax, Total             2,400
Retained Earnings (Accumulated Deficit), Ending Balance             $ (2,400)
Accounting Standards Update 2016-02 [Member] | Subsequent Event [Member]              
Operating Lease, Right-of-Use Asset           $ 82,000  
Operating Lease, Liability, Total           $ 82,000  
Minimum [Member]              
Finite-Lived Intangible Asset, Useful Life     1 year        
Maximum [Member]              
Finite-Lived Intangible Asset, Useful Life     20 years        
Equipment [Member] | Minimum [Member]              
Property, Plant and Equipment, Useful Life     3 years        
Equipment [Member] | Maximum [Member]              
Property, Plant and Equipment, Useful Life     5 years        
Building, Building Improvements and Leasehold Improvements [Member] | Minimum [Member]              
Property, Plant and Equipment, Useful Life     5 years        
Building, Building Improvements and Leasehold Improvements [Member] | Maximum [Member]              
Property, Plant and Equipment, Useful Life     40 years