Quarterly report pursuant to Section 13 or 15(d)

Note 3 - Income Taxes (Details Textual)

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Note 3 - Income Taxes (Details Textual)
3 Months Ended 9 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Mar. 31, 2017
Mar. 31, 2016
Effective Income Tax Rate Reconciliation, Percent 35.60% 34.70% 36.60% 36.00%