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Investment Securities Investment Securities Carrying Value (Amortized Cost) and Fair Value by remaining period of contractual maturity (Details) - USD ($) $ in Thousands | Sep. 30, 2015 | Mar. 31, 2015
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INVESTMENT SECURITIES [Abstract] |  |  |
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Amortized Cost Basis |  | $ 9,983 |
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value |  | $ 9,965 |
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Weighted Average Rate |  | 1.44% |
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Amortized Cost Basis |  | $ 19,183 |
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value |  | $ 18,891 |
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Weighted Average Rate |  | 1.99% |
Available-for-sale Securities, Debt Maturities, after Ten Years, Amortized Cost Basis |  | $ 47,412 |
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value |  | $ 46,904 |
Available-for-sale Securities, Debt Maturities, after Ten Years, Weighted Average Rate |  | 1.56% |
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis |  | $ 76,578 |
Available-for-sale |  | $ 75,760 | $ 101,185
Available-for-sale Securities, Debt Maturities, Weighted Average Rate |  | 1.65% |
Held-to-maturity Securities, Debt Maturities, after Five Through Ten Years, Net Carrying Amount |  | $ 7,076 |
Held-to-maturity Securities, Debt Maturities, Year Six Through Ten, Fair Value |  | $ 7,188 |
Held-to-maturity Securities, Debt Maturities, after Five Through Ten Years, Weighted Average Rate |  | 3.00% |
Held-to-maturity Securities, Debt Maturities, after Ten Years, Net Carrying Amount |  | $ 9,011 |
Held-to-maturity Securities, Debt Maturities, after Ten Years, Fair Value |  | $ 9,123 |
Held-to-maturity Securities, Debt Maturities, after Ten Years, Weighted Average Rate |  | 2.51% |
Held-to-maturity |  | $ 16,087 | 11,922
Held-to-maturity Securities, Fair Value | [1] | $ 16,311 | $ 12,231
Held-to-maturity Securities, Debt Maturities, Weighted Average Rate |  | 2.72% |
[1] | * The carrying amount and amortized cost are the same for all held-to-maturity securities, as no OTTI has been recorded.

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- Definition This item represents the cost of debt securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27161-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.2) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount after adjustments of available-for-sale debt securities at cost, maturing in the second fiscal year through the fifth fiscal year following the latest fiscal year. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings less cumulative-effect adjustments, and fair value hedge accounting adjustments. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.2) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27198-111563 + Details
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