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Investments In Available-For-Sale Securities (Tables) | 6 Months Ended
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Oct. 31, 2012
Investments In Available-For-Sale Securities [Abstract] |
Amortized Cost And Fair Value Of Securities Available-For-Sale |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (in 000s)
As of |  | October 31, 2012 |  |  | April 30, 2012
|  |  |  |  | Gross |  |  | Gross |  |  |  |  |  |  |  |  | Gross |  |  | Gross |  |  |
|  | Amortized |  |  | Unrealized |  |  | Unrealized |  |  | Fair |  |  | Amortized |  |  | Unrealized |  |  | Unrealized |  |  | Fair
|  | Cost |  |  | Gains |  |  | Losses (1) |  |  | Value |  |  | Cost |  |  | Gains |  |  | Losses (1) |  |  | Value
Short-term: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Municipal bonds | $ | 1,003 |  | $ | 11 |  | $ | - |  | $ | 1,014 |  | $ | 1,008 |  | $ | 29 |  | $ | - |  | $ | 1,037
Long-term: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage-backed |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
securities |  | 378,055 |  |  | 6,116 |  |  | (109) |  |  | 384,062 |  |  | 361,184 |  |  | 5,620 |  |  | (121) |  |  | 366,683
Municipal bonds |  | 4,207 |  |  | 371 |  |  | - |  |  | 4,578 |  |  | 4,236 |  |  | 396 |  |  | - |  |  | 4,632
|  | 382,262 |  |  | 6,487 |  |  | (109) |  |  | 388,640 |  |  | 365,420 |  |  | 6,016 |  |  | (121) |  |  | 371,315
Total | $ | 383,265 |  | $ | 6,498 |  | $ | (109) |  | $ | 389,654 |  | $ | 366,428 |  | $ | 6,045 |  | $ | (121) |  | $ | 372,352
(1) At October 31, 2012, mortgage-backed securities with a cost of $4.6 million and gross unrealized losses of $1 thousand had been in a continuous loss position for more than twelve months. At April 30, 2012, mortgage-backed securities with a cost of $8.1 million and gross unrealized losses of $21 thousand had been in a continuous loss position for more than twelve months.
Contractual Maturities Of AFS Debt Securities At Varying Dates Over The Next 30 Years |
|  |  |  |  | (in 000s)
As of October 31, 2012 |  | Cost Basis |  |  | Fair Value
Maturing in: |  |  |  |  |
Less than one year | $ | 1,003 |  | $ | 1,014
Two to five years |  | 4,207 |  |  | 4,578
More than five years |  | 378,055 |  |  | 384,062
| $ | 383,265 |  | $ | 389,654

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- Definition Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27290-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27198-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 03-1 -Paragraph 21 -Subparagraph a, b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62557-112803 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number FAS115-1/124-1 -Paragraph 17 -Subparagraph a, b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27337-111563 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 19, 20, 21 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27161-111563 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62586-112803 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27357-111563 + Details
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