Note 1 - Depreciation of Property and Equipment and Amortization of Assets Under Capital Leases Are Computed (Details) |
12 Months Ended |
|---|---|
Jun. 30, 2016 | |
| Minimum [Member] | Revenue and Service Equipment [Member] | |
| Property, Plant and Equipment, Useful Life | 4 years |
| Minimum [Member] | Furniture and Office Equipment [Member] | |
| Property, Plant and Equipment, Useful Life | 4 years |
| Maximum [Member] | Revenue and Service Equipment [Member] | |
| Property, Plant and Equipment, Useful Life | 10 years |
| Maximum [Member] | Furniture and Office Equipment [Member] | |
| Property, Plant and Equipment, Useful Life | 5 years |
| Building [Member] | |
| Property, Plant and Equipment, Useful Life | 20 years |
| Leasehold Improvements [Member] | |
| Leasehold improvements | Lesser of life of lease (including expected renewals) or useful life of improvement |