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Marketable Securities | 12 Months Ended
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Feb. 28, 2015
Marketable Securities [Abstract] |
Marketable Securities | Marketable Securities At February 28, 2015, the Company has investments in municipal bonds of $11.0 million; $0.3 million is current and $10.7 million is non-current. The Company’s wholly owned insurance subsidiary, Prism Assurance, Ltd., held all of the municipal bonds at the end of both fiscal 2015 and 2014. Prism insures a portion of the Company’s workers’ compensation, general liability and automobile liability risks using reinsurance agreements to meet statutory requirements. The reinsurance carrier requires Prism to maintain fixed-maturity investments, which are generally high-quality municipal bonds, for the purpose of providing collateral for Prism’s obligations under the reinsurance agreement. All of the Company’s fixed maturity investments are classified as “available-for-sale,” are carried at fair value and are reported as short-term marketable securities available for sale or marketable securities available for sale in the consolidated balance sheets. The amortized cost, gross unrealized gains and losses, and estimated fair values of investments available for sale at February 28, 2015 and March 1, 2014, are as follows:
(In thousands) | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Estimated Fair Value
February 28, 2015 |  |  |  |  |  |  |
Municipal bonds | $ | 10,973 |  |  | $ | 127 |  |  | $ | (118 | ) |  | $ | 10,982 |
Total investments | $ | 10,973 |  |  | $ | 127 |  |  | $ | (118 | ) |  | $ | 10,982 |
March 1, 2014 |  |  |  |  |  |  |
Municipal bonds | $ | 11,719 |  |  | $ | 94 |  |  | $ | (336 | ) |  | $ | 11,477 |
Total investments | $ | 11,719 |  |  | $ | 94 |  |  | $ | (336 | ) |  | $ | 11,477 |
The Company tests for other than temporary losses on a quarterly basis and considers the unrealized losses indicated above to be temporary in nature. The Company intends to hold the investments until it can recover the full principal amount and has the ability to do so based on other sources of liquidity. The Company expects such recoveries to occur prior to the contractual maturities. The following table presents the length of time that available-for-sale securities were in continuous unrealized loss positions, but were not deemed to be other than temporarily impaired, as of February 28, 2015:
| Less Than 12 Months |  | Greater Than or Equal to 12 Months |  | Total
(In thousands) | Fair Value |  | Unrealized Losses |  | Fair Value |  | Unrealized Losses |  | Fair Value |  | Unrealized Losses
Municipal bonds | $ | 2,229 |  |  | $ | (7 | ) |  | $ | 1,139 |  |  | $ | (111 | ) |  | $ | 3,368 |  |  | $ | (118 | )
Total investments | $ | 2,229 |  |  | $ | (7 | ) |  | $ | 1,139 |  |  | $ | (111 | ) |  | $ | 3,368 |  |  | $ | (118 | )
The amortized cost and estimated fair values of investments at February 28, 2015, by contractual maturity are shown below. Expected maturities may differ from contractual maturities as borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.
(In thousands) | Amortized Cost |  | Estimated Market Value
Due within one year | $ | 322 |  |  | $ | 327 |
Due after one year through five years | 2,835 |  |  | 2,848 |
Due after five years through 10 years | 6,566 |  |  | 6,668 |
Due after 10 years through 15 years | 1,250 |  |  | 1,139 |
Total | $ | 10,973 |  |  | $ | 10,982 |
Gross realized gains were $0.1 million in fiscal 2015, were not material in fiscal 2014, and were $0.3 million in fiscal 2013. Gross realized losses were not material during fiscal 2015, 2014 or 2013. The gross realized gains and losses are included in other income (expense), net in the accompanying consolidated results of operations.

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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 6 -URI http://asc.fasb.org/extlink&oid=27724398&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 9 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27357-111563 Reference 3: 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 4: 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 5: 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=27724398&loc=d3e27232-111563 Reference 6: 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 7: 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=27724398&loc=d3e27161-111563 Reference 8: 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=27724398&loc=d3e27405-111563 Reference 9: 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 + Details
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