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Investment Securities | 12 Months Ended
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Mar. 31, 2015
Notes |
Investment Securities | 3. INVESTMENT SECURITIES The amortized cost and approximate fair value of investment securities available for sale consisted of the following at the dates indicated (in thousands):
| Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Estimated Fair Value
March 31, 2015 |  |  |  |  |  |  |  |  |  |  |
Trust preferred | $ | 1,919 |  | $ | - |  | $ | (107 | ) | $ | 1,812
Agency securities |  | 14,008 |  |  | 38 |  |  | (107 | ) |  | 13,939
Total | $ | 15,927 |  | $ | 38 |  | $ | (214 | ) | $ | 15,751
March 31, 2014 |  |  |  |  |  |  |  |  |  |  |
Trust preferred | $ | 1,919 |  | $ | - |  | $ | (16 | ) | $ | 1,903
Agency securities |  | 21,947 |  |  | 6 |  |  | (462 | ) |  | 21,491
Total | $ | 23,866 |  | $ | 6 |  | $ | (478 | ) | $ | 23,394
The contractual maturities of investment securities available for sale at March 31, 2015 are as follows (in thousands):
March 31, 2015 |  | Amortized Cost |  |  | Estimated Fair Value |
Due in one year or less | $ | - |  | $ | - |
Due after one year through five years |  | 13,000 |  |  | 12,893 |
Due after five years through ten years |  | 1,008 |  |  | 1,046 |
Due after ten years |  | 1,919 |  |  | 1,812 |
Total | $ | 15,927 |  | $ | 15,751 |
The fair value of temporarily impaired securities, the amount of unrealized losses and the length of time these unrealized losses existed are as follows at the dates indicated (in thousands):
| Less than 12 months |  | 12 months or longer |  | Total |
March 31, 2015 |  | Fair Value |  |  | Unrealized Losses |  |  | Fair Value |  |  | Unrealized Losses |  |  | Fair Value |  |  | Unrealized Losses |
Trust preferred | $ | - |  | $ | - |  | $ | 1,812 |  | $ | (107 | ) | $ | 1,812 |  | $ | (107 | )
Agency securities |  | - |  |  | - |  |  | 12,893 |  |  | (107 | ) |  | 12,893 |  |  | (107 | )
Total | $ | - |  | $ | - |  | $ | 14,705 |  | $ | (214 | ) | $ | 14,705 |  | $ | (214 | )
March 31, 2014 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Trust preferred | $ | 1,903 |  | $ | (16 | ) | $ | - |  | $ | - |  | $ | 1,903 |  | $ | (16 | )
Agency securities |  | 17,985 |  |  | (462 | ) |  | - |  |  | - |  |  | 17,985 |  |  | (462 | )
Total | $ | 19,888 |  | $ | (478 | ) | $ | - |  | $ | - |  | $ | 19,888 |  | $ | (478 | )
At March 31, 2015, the Company had a single collateralized debt obligation which is secured by a pool of trust preferred securities issued by 15 other holding companies. The Company holds the mezzanine tranche of this security. All tranches senior to the mezzanine tranche have been repaid by the issuer. Four of the issuers of trust preferred securities in this pool have defaulted (representing 51% of the remaining collateral, including excess collateral), and one other issuer is currently deferring interest payments (representing 2% of the remaining collateral). The Company has estimated an expected default rate of 44% for its portion of this security. The expected default rate was estimated based primarily on an analysis of the financial condition of the underlying issuers. The Company estimates that a default rate of 68% would trigger additional other than temporary impairment (“OTTI”) of this security. The Company utilized a discount rate of 10% to estimate the fair value of this security. There was no excess subordination on this security. During the year ended March 31, 2015, the Company determined that there was no additional OTTI charge on the above collateralized debt obligation. The Company does not intend to sell this security and it is not more likely than not that the Company will be required to sell the security before the anticipated recovery of the remaining amortized cost basis. To determine the component of gross OTTI related to credit losses, the Company compared the amortized cost basis of the collateralized debt obligation to the present value of the revised expected cash flows, discounted using the current pre-impairment yield. The revised expected cash flow estimates are based primarily on an analysis of default rates, prepayment speeds and third-party analytical reports. Significant judgment of management is required in this analysis that includes, but is not limited to, assumptions regarding the ultimate collectability of principal and interest on the underlying collateral. The unrealized losses on the above agency securities were primarily attributable to increases in market interest rates subsequent to their purchase by the Company. The Company expects the fair value of the agency securities to recover as the agency securities approach their maturity dates or sooner if market yields for such securities decline. The Company does not believe that the agency securities are other than temporarily impaired because of their credit quality or related to any issuer or industry specific event. Based on management’s evaluation and intent, the unrealized losses related to the agency securities in this table are considered temporary. Proceeds from sale of investment securities totaled $2.5 million for the twelve months ended March 31, 2015. Gross realized gains on sales of investment securities totaled $31,000 for twelve months ended March 31, 2015. The Company had no sales and no realized gains or losses on investment securities for the twelve months ended March 31, 2014 or 2013. Investment securities with an amortized cost of $3.0 million and $1.0 million and a fair value of $3.0 million and $975,000 at March 31, 2015 and 2014, respectively, were pledged as collateral for government public funds held by the Bank.

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