Note 12 - Employee Benefit and Retirement Plans - Future Pension and Other Benefits Payments (Details) $ in Thousands	Jun. 30, 2018 USD ($)
Pension Plan [Member]
2019	$ 7,192
2020	7,405
2021	7,612
2022	7,971
2023	8,201
2024-2028	44,223
Other Benefits [Member]
2019	338
2020	342
2021	347
2022	355
2023	347
2024-2028	$ 1,844

Amount of benefits for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following latest fiscal year.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920

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Amount of benefits for defined benefit plan expected to be paid in next fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in fifth fiscal year following latest fiscal year.

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