Quarterly report pursuant to Section 13 or 15(d)

Note 1 - Basis of Presentation and Summary of Significant Accounting Policies (Details Textual)

v3.10.0.1
Note 1 - Basis of Presentation and Summary of Significant Accounting Policies (Details Textual)
 3 Months Ended 12 Months Ended
Sep. 30, 2018
USD ($)
Jun. 30, 2018
USD ($)
Jul. 01, 2018
USD ($)
Number of Operating Segments   5  
Number of Reportable Segments 2    
Retained Earnings (Accumulated Deficit), Ending Balance $ 905,139,000 $ 876,931,000  
Available-for-sale Securities, Total   54,300,000  
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax, Total   35,400,000  
Deferred Tax Liabilities, Other Comprehensive Income   8,300,000  
Accumulated Other Comprehensive Income (Loss), Net of Tax, Total (70,632,000) $ (44,814,000)  
Accounting Standards Update 2014-09 [Member]      
Retained Earnings (Accumulated Deficit), Ending Balance     $ 98,000
Accounting Standards Update 2016-01 [Member]      
Retained Earnings (Accumulated Deficit), Ending Balance     27,100,000
Accumulated Other Comprehensive Income (Loss), Net of Tax, Total     (27,100,000)
Accounting Standards Update 2016-01 [Member] | Other Nonoperating Income (Expense) [Member]      
Equity Securities, FV-NI, Gain (Loss), Total $ (2,200,000)    
Accounting Standards Update 2018-02 [Member]      
Retained Earnings (Accumulated Deficit), Ending Balance     (2,400,000)
Accumulated Other Comprehensive Income (Loss), Net of Tax, Total     $ 1,900,000