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Note 9 - Pension Plans - Estimated Future Benefit Payments (Details)
$ in Thousands
Mar. 31, 2017
USD ($)
March 31, 2018 $ 1,525
March 31, 2019 1,561
March 31, 2020 1,632
March 31, 2021 1,660
March 31, 2022 1,611
Five fiscal years ended March 31, 2027 9,449
Total benefit payments for the ten fiscal years ended March 31, 2027 $ 17,438