Note 5 - Debt and Other Financing Arrangements	6 Months Ended
Note 5 - Debt and Other Financing Arrangements	Dec. 31, 2016
Notes to Financial Statements
Debt Disclosure [Text Block]	Note 5. Debt and Other Financing Arrangements: The Company entered into a new revolving line-of-credit facility governed by a Credit Agreement (the Credit Agreement) dated July 28, 2016. The Credit Agreement provides for a revolving credit facility of $400 million, which can be increased by an additional $200 million subject to certain conditions. Borrowings under the Credit Agreement may be used for working capital and expenditures of the Company and its subsidiaries, including financing permitted acquisitions. Borrowings under the Credit Agreement for base rate loans bear interest at a variable rate equal to the greater of (i) the prime commercial rate, (ii) the per annum federal funds rate plus 0.5%, or (iii) LIBOR + 1.00% - 1.75% depending on the existing total leverage ratio of Debt to Earnings Before Interest, Taxes, Depreciation and Amortization (as defined in the Credit Agreement). The annualized fee for any unused portion of the credit facility is currently 15 basis points. The Credit Agreement matures on July 28, 2021 and contains customary restrictive and financial covenants and customary events of default. As of December 31, 2016, the outstanding balance under the Credit Agreement was $343.5 million.