Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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The amount of additional borrowing that is available to the borrower if certain conditions are met or extensions requested.

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- Definition

Debt Instrument, Covenant, Leverage Ratio, Maximum

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

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of the required periodic payments including both interest and principal payments.

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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- Definition

Fixed interest rate related to the interest rate derivative.

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No definition available.

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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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-SubTopic 10
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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.

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
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- Definition

The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

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Debt - Narrative (Details)	Nov. 30, 2018 USD ($)	Sep. 23, 2016 USD ($)	Feb. 24, 2019 USD ($)	Nov. 29, 2018	Jun. 25, 2018 USD ($)	May 27, 2018 USD ($)	Nov. 01, 2016 USD ($)
Debt Instrument [Line Items]
Term loan facility			$ 99,428,000			$ 42,300,000
Debt issuance costs			572,000			$ 200,000
BMO \| Interest Rate Swap
Debt Instrument [Line Items]
Interest rate swap contract notional amount					$ 30,000,000		$ 50,000,000
London Interbank Offered Rate (LIBOR) \| BMO \| Interest Rate Swap
Debt Instrument [Line Items]
Interest rate					2.74%		1.22%
Credit Agreement With JPMorgan Chase, BMO Harris Bank, and City National Bank
Debt Instrument [Line Items]
Covenant, leverage ratio				3.50
Credit Agreement With JPMorgan Chase, BMO Harris Bank, and City National Bank \| Term loan
Debt Instrument [Line Items]
Term loan facility		$ 50,000,000
Forth Amendment Credit Agreement With JP Morgan Chase BMO Harris Bank And City National Bank
Debt Instrument [Line Items]
Debt issuance costs	$ 577,000
Debt issuance costs to be capitalized and amortized	$ 509,000
Amortization period	3 years
Covenant, leverage ratio	4.50
Forth Amendment Credit Agreement With JP Morgan Chase BMO Harris Bank And City National Bank \| Minimum \| Prime Rate
Debt Instrument [Line Items]
Basis spread on variable rate	0.25%
Forth Amendment Credit Agreement With JP Morgan Chase BMO Harris Bank And City National Bank \| Minimum \| Eurodollar
Debt Instrument [Line Items]
Basis spread on variable rate	1.25%
Forth Amendment Credit Agreement With JP Morgan Chase BMO Harris Bank And City National Bank \| Maximum
Debt Instrument [Line Items]
Additional commitment amount		10,000,000
Forth Amendment Credit Agreement With JP Morgan Chase BMO Harris Bank And City National Bank \| Maximum \| Prime Rate
Debt Instrument [Line Items]
Basis spread on variable rate	2.25%
Forth Amendment Credit Agreement With JP Morgan Chase BMO Harris Bank And City National Bank \| Maximum \| Eurodollar
Debt Instrument [Line Items]
Basis spread on variable rate	3.25%
Forth Amendment Credit Agreement With JP Morgan Chase BMO Harris Bank And City National Bank \| Term loan
Debt Instrument [Line Items]
Term loan facility	$ 100,000,000
Periodic payment	2,500,000
Revolving Credit Facility \| Credit Agreement With JPMorgan Chase, BMO Harris Bank, and City National Bank
Debt Instrument [Line Items]
Revolving line of credit		$ 100,000,000
Revolving Credit Facility \| Forth Amendment Credit Agreement With JP Morgan Chase BMO Harris Bank And City National Bank
Debt Instrument [Line Items]
Revolving line of credit	$ 105,000,000
Revolving Credit Facility \| Forth Amendment Credit Agreement With JP Morgan Chase BMO Harris Bank And City National Bank \| Eurodollar
Debt Instrument [Line Items]
Line of credit outstanding			$ 44,000,000
Interest rate under the Eurodollar option			5.27%