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Employee Benefit Plans (Table Text Block) | 6 Months Ended
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Sep. 30, 2014
Disclosure Text Block Supplement [Abstract] |
Net period benefit and postretirement costs | The components of the net periodic benefit costs with respect to postretirement benefits were as follows:
|  | Quarter Ended September 30,
|  | 2014 |  | 2013
|  | (Unaudited)
|  | (In thousands)
Service cost for benefits earned during the period | $ | 206 | $ | 181
Interest cost on accumulated postretirement benefit |  | 180 |  | 141
Other components |  | 4 |  | 5
Net periodic postretirement benefit cost | $ | 390 | $ | 327
|  | Six Months Ended September 30,
|  | 2014 |  | 2013
|  | (Unaudited)
|  | (In thousands)
Service cost for benefits earned during the period | $ | 413 | $ | 362
Interest cost on accumulated postretirement benefit |  | 360 |  | 282
Other components |  | 7 |  | 10
Net periodic postretirement benefit cost | $ | 780 | $ | 654

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- Definition Tabular disclosure of the costs related to the various types of retirement plans including defined benefit pension plan cost, defined contribution plan cost, other postretirement benefit plan cost, and net periodic benefit cost. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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