v3.5.0.2
Note 2 - Property, Equipment, and Leases (Details Textual) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2015
Jun. 30, 2016
Jun. 30, 2016
Jun. 30, 2015
Revenue Equipment Under Capital Leases [Member]        
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation   $ 50.9 $ 50.9 $ 54.8
Tractors [Member]        
Property, Plant and Equipment, Useful Life 3 years 4 years    
Trailers [Member]        
Property, Plant and Equipment, Useful Life 7 years 10 years    
Depreciation Expense [Member]        
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Operating Results     7.0  
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Net Income     $ 4.5  
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Basic and Diluted Earnings Per Share     $ 0.16