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Employee Benefit Plans (Table Text Block) | 12 Months Ended
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Mar. 31, 2017
Table Text Block [Abstract] |
Summary Of Financing Arrangements for Leveraged ESOP Debt |
|  | Outstanding as of |  | Interest Payments
Financing Date |  | March 31, 2017 |  | 2017 |  | 2016 |  | 2015
|  | (In thousands)
June, 1991 | $ | 31 | $ | 2 | $ | 10 | $ | 48
July, 2009 |  | 775 |  | 36 |  | 33 |  | 31
February, 2016 |  | 5,245 |  | – |  | – |  | –
Shares Held by the ESOP Plan |
|  | Years Ended March 31,
|  | 2017 |  | 2016
|  | (In thousands)
Allocated shares |  | 1,160 |  | 1,203
Unreleased shares - leveraged |  | 21 |  | 22
Fair value of unreleased shares - leveraged | $ | 8,127 | $ | 8,072
Unreleased shares - non-leveraged |  | 9 |  | 8
Fair value of unreleased shares - non-leveraged | $ | 3,539 | $ | 2,756
Components of Net Periodic Post Retirement Benefit Cost |
|  | Years Ended March 31,
|  | 2017 |  | 2016 |  | 2015
|  | (In thousands)
Service cost for benefits earned during the period | $ | 1,026 | $ | 961 | $ | 827
Interest cost on accumulated postretirement benefit |  | 814 |  | 752 |  | 720
Other components |  | 88 |  | 35 |  | 14
Net periodic postretirement benefit cost | $ | 1,928 | $ | 1,748 | $ | 1,561
Components of Post Retirement Benefit Liabilities |
|  | Years Ended March 31,
|  | 2017 |  | 2016
|  | (In thousands)
Beginning of year | $ | 20,791 | $ | 18,554
Service cost for benefits earned during the period |  | 1,026 |  | 961
Interest cost on accumulated post retirement benefit |  | 814 |  | 752
Net benefit payments and expense |  | (443) |  | (541)
Actuarial loss |  | 59 |  | 1,065
Accumulated postretirement benefit obligation |  | 22,247 |  | 20,791
Current liabilities |  | 737 |  | 658
Non-current liabilities |  | 21,510 |  | 20,133
Total post retirement benefit liability recognized in statement of financial position |  | 22,247 |  | 20,791
Components included in accumulated other comprehensive income (loss): |  |  |  |
Unrecognized net loss |  | (2,817) |  | (2,847)
Cumulative net periodic benefit cost (in excess of employer contribution) | $ | 19,430 | $ | 17,944
Discount Rate Assumptions for Accumulated Postretirement Benefit Obligations |
|  | Years Ended March 31,
|  | 2017 |  | 2016 |  | 2015
|  | (In percentages)
Accumulated postretirement benefit obligation |  | 3.94% |  | 3.89% |  | 3.99%
Future Net Benefit Payments Expected for Post Employee Benefit Obligations |
|  | Future Net Benefit Payments
|  | (In thousands)
Year-ended: |  |
2018 | $ | 737
2019 |  | 871
2020 |  | 1,033
2021 |  | 1,208
2022 |  | 1,422
2023 through 2027 |  | 9,936
Total | $ | 15,207

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- Definition Tabular disclosure of benefit obligations including accumulated benefit obligation and projected benefit obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the assumptions used to determine for pension plans and/or other employee benefit plans the benefit obligation and net benefit cost, including assumed discount rates, rate increase in compensation increase, and expected long-term rates of return on plan assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the change in the accumulated postemployment benefit obligation from the beginning to the end of the period, showing separately, if applicable, the effects of the following: service cost, interest cost, contributions by plan participants, actuarial gains and losses, foreign currency exchange rate changes, benefits paid, plan amendments, business combinations, divestitures, curtailments, settlements, and special and contractual termination benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the details pertaining to each employee stock ownership plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=65895303&loc=d3e17540-113929 + Details
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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of share-based compensation plans that may be presented in a single table for outstanding, vested and expected to vest, and exercisable awards. The information that may be disclosed in this table may include, but is not limited to, number of shares, weighted average exercise price, weighted average remaining contractual life, and aggregate intrinsic value. + References No definition available. + Details
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