v3.5.0.2
Note 5 - Income Taxes (Details Textual) - USD ($)
$ in Millions
3 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Domestic Tax Authority [Member] | Earliest Tax Year [Member]    
Open Tax Year 2012  
Domestic Tax Authority [Member] | Latest Tax Year [Member]    
Open Tax Year 2014  
Effective Income Tax Rate Reconciliation, Percent 37.10% 36.60%
Unrecognized Tax Benefits $ 0.5