Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

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+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

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-Publisher FASB

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-Subparagraph (SX 210.5-02.22(a)(1))

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+ Details

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

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Period Type:	instant

- Definition

Date the debt instrument was issued, in CCYY-MM-DD format.

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-Name Regulation S-X (SX)

-Number 210

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- Details

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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-Publisher SEC

-Name Regulation S-X (SX)

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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-Topic 942

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-Subparagraph (SX 210.9-03.16)

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- Definition

Amount borrowed under the credit facility as of the balance sheet date.

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-Number 210

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- Definition

The effective interest rate at the end of the reporting period.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

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- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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-Name Regulation S-X (SX)

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Credit Arrangements (Narrative) (Details) (USD $)	12 Months Ended	6 Months Ended	0 Months Ended
Credit Arrangements (Narrative) (Details) (USD $)	Aug. 31, 2006	Feb. 28, 2015	Feb. 18, 2015	Aug. 22, 2014	Feb. 19, 2015	Feb. 28, 2014
Debt Instrument [Line Items]
Long-term debt outstanding		$ 117,462,000us-gaap_LongTermDebt
Series 2006A Bonds [Member]
Debt Instrument [Line Items]
Long-term debt outstanding		2,462,000
Five Year United States Treasury Notes [Member] \| Series 2006A Bonds [Member]
Debt Instrument [Line Items]
Basis spread	0.45%
Interest rate		1.95%
Senior Notes [Member]
Debt Instrument [Line Items]
Debt face amount					115,000,000
Debt instrument, stated interest rate					3.82%
Maturity date		Feb. 19, 2030
Effective date		Feb. 19, 2015
Long-term debt outstanding		115,000,000
Amended Credit Facility [Member]
Debt Instrument [Line Items]
Unsecured line of credit, maximum borrowing capacity			50,000,000
Line of credit, amount outstanding		0				0
Available borrowing amount		44,000,000
Line of credit, outstanding		6,000,000
Interest rate		1.07%
Commitment fee percentage			0.25%
Amended Credit Facility [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis spread			0.90%
Rabobank Credit Facility [Member]
Debt Instrument [Line Items]
Unsecured line of credit, maximum borrowing capacity				5,000,000
Line of credit, amount outstanding		$ 0
Interest rate		1.32%
Basis spread				1.15%
Commitment fee percentage		0.25%