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Note O - Pension and Other Postretirement Benefit Plans - Net Funded Status of Pension and Postretirement Plans (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Jun. 30, 2019 | Jun. 30, 2018
Net amount recognized | $ 41,901 | $ 30,877
Pension Plan [Member] |  |
Benefit obligation, beginning of year | 105,012 | 118,170
Service cost | 795 | 861
Interest cost | 4,020 | 3,979
Actuarial loss (gain) | 6,718 | (8,690)
Contributions by plan participants | 103 | 105
Benefits paid | (9,326) | (9,413)
Benefit obligation, end of year | 107,322 | 105,012
Fair value of assets, Balance | 90,258 | 94,372
Actual return on plan assets | 4,125 | 2,894
Employer contribution | 2,131 | 2,300
Contributions by plan participants | 103 | 105
Benefits paid | (9,326) | (9,413)
Fair value of assets, Balance | 87,291 | 90,258
Funded status | (20,031) | (14,754)
Other assets - noncurrent | 3 | 157
Accrued liabilities - current | (645) | (679)
Accrued retirement benefits - noncurrent | (19,389) | (14,232)
Net amount recognized | (20,031) | (14,754)
Net transition obligation | 178 | 204
Prior service cost | 144 | 360
Actuarial net loss | 42,185 | 31,146
Net amount recognized | 42,507 | 31,710
Other Postretirement Benefits Plan [Member] |  |
Benefit obligation, beginning of year | 8,077 | 11,574
Service cost | 19 | 20
Interest cost | 305 | 325
Actuarial loss (gain) | 18 | (2,608)
Contributions by plan participants | 389 | 440
Benefits paid | (1,357) | (1,674)
Benefit obligation, end of year | 7,451 | 8,077
Fair value of assets, Balance |  |
Actual return on plan assets |  |
Employer contribution | 968 | 1,234
Contributions by plan participants | 389 | 440
Benefits paid | (1,357) | (1,674)
Fair value of assets, Balance |  |
Funded status | (7,451) | (8,077)
Other assets - noncurrent |  |
Accrued liabilities - current | (962) | (1,241)
Accrued retirement benefits - noncurrent | (6,489) | (6,836)
Net amount recognized | (7,451) | (8,077)
Net transition obligation |  |
Prior service cost | (908) |
Actuarial net loss | 302 | (833)
Net amount recognized | $ (606) | $ (833)

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