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Note 4 - Fair Value Measurements | 6 Months Ended
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Feb. 28, 2015
Disclosure Text Block [Abstract] |
Fair Value, Measurement Inputs, Disclosure [Text Block] | 4. Fair Value Measurements US GAAP establishes a framework for measuring fair value and establishes disclosure requirements about fair value measurements. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. The fair value hierarchy prescribed under US GAAP contains three levels as follows:
Level 1 – | Quoted prices in active markets for identical assets or liabilities.
Level 2 – | Observable inputs other than quoted prices included in Level 1, such as quoted prices for similar assets and liabilities in active markets; quoted prices for identical or similar assets and liabilities in markets that are not active; or other inputs that are observable or can be corroborated by observable market data.
Level 3 – | Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. This includes certain pricing models, discounted cash flow methodologies and similar techniques that use significant unobservable inputs.
All financial assets or liabilities that are measured at fair value on a recurring basis (at least annually) have been segregated into the most appropriate level within the fair value hierarchy based on the inputs used to determine the fair value at the measurement date. The assets or liabilities measured at fair value on a recurring basis are summarized in the tables below (in thousands):
|  | As of February 28, 2015 |
|  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Fair Value |
Assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash equivalents |  | $ | 43,463 |  |  | $ | — |  |  | $ | — |  |  | $ | 43,463 |
Pension plan assets |  |  | — |  |  |  | 4,926 |  |  |  | — |  |  |  | 4,926 |
Total assets at fair value |  | $ | 43,463 |  |  | $ | 4,926 |  |  | $ | — |  |  | $ | 48,389 |
Liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Foreign currency forward contracts |  | $ | — |  |  | $ | 649 |  |  | $ | — |  |  | $ | 649 |
Total liabilities at fair value |  | $ | — |  |  | $ | 649 |  |  | $ | — |  |  | $ | 649 |
|  | As of August 30, 201 4 |
|  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Fair Value |
Assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash equivalents |  | $ | 47,552 |  |  | $ | — |  |  | $ | — |  |  | $ | 47,552 |
Pension plan assets |  |  | — |  |  |  | 5,008 |  |  |  | — |  |  |  | 5,008 |
Total assets at fair value |  | $ | 47,552 |  |  | $ | 5,008 |  |  | $ | — |  |  | $ | 52,560 |
The Company’s cash equivalents listed above represents money market securities and are classified within Level 1 of the fair value hierarchy because they are valued using quoted market prices. The Company does not adjust the quoted market price for such financial instruments. The Company’s pension plan assets listed above represent guaranteed deposit accounts that are maintained and operated by Prudential Retirement Insurance and Annuity Company (“PRIAC”). All assets are merged with the general assets of PRIAC and are invested predominantly in privately placed securities and mortgages. At the beginning of each calendar year, PRIAC notifies the Company of the annual rates of interest which will be applied to the amounts held in the guaranteed deposit account during the next calendar year. In determining the interest rate to be applied, PRIAC considers the investment performance of the underlying assets of the prior year; however, regardless of the investment performance the Company is guaranteed a minimum rate of return. The Company’s foreign currency forward contracts represent contracts the Company has entered into to exchange Canadian dollars for U.S. dollars at fixed exchange rates in order to manage its exposure related to certain forecasted Canadian dollar denominated sales of one of its subsidiaries. These contracts were included in current accrued liabilities as of February 28, 2015. The fair value of the forward contracts is based on similar exchange traded derivatives and are, therefore, included within Level 2 of the fair value hierarchy.

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- Definition The entire disclosure of the fair value measurement of assets and liabilities, which includes financial instruments measured at fair value that are classified in shareholders' equity, which may be measured on a recurring or nonrecurring basis. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19279-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19190-110258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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