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Investments In Available-For-Sale Securities | 6 Months Ended
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Oct. 31, 2012
Investments In Available-For-Sale Securities [Abstract] |
Investments In Available-For-Sale Securities | 5. Investments in Available-for-Sale Securities The amortized cost and fair value of securities classified as available-for-sale (AFS) held at October 31, 2012 and April 30, 2012 are summarized below:
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (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. During the six months ended October 31, 2012, we received proceeds from the sale of AFS securities of $5.2 million, and recorded a gross realized gain of $0.2 million on this sale. We had no sales of AFS securities during the six months ended October 31, 2011. Contractual maturities of AFS debt securities at October 31, 2012, occur at varying dates over the next 30 years, and are set forth in the table below.
|  |  |  |  | (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 The entire disclosure for investments in certain debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27405-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 3, 19, 20, 21, 22, 137 -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 Accounting Standards Codification -Topic 320 -Glossary Equity Security -URI http://asc.fasb.org/extlink&oid=6511694 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -Glossary Debt Security -URI http://asc.fasb.org/extlink&oid=6509901 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27232-111563 Reference 8: 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 Reference 9: 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 10: 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 + Details
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