Principal payments required under a debt instrument expressed as a percentage of the original principal amount.

No definition available.

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- Definition

The net leverage ratio associated with a credit facility.

+ References

No definition available.

+ Details

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Data Type:	xbrli:pureItemType
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- Definition

Amount of provisions related to a line of credit facility relating to events of default and covenants.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The percentage by which the applicable margin for borrowings on the credit facility steps down if the company falls below a leverage ratio threshold.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

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

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

+ Details

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Data Type:	xbrli:monetaryItemType
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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

+ Details

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Period Type:	instant

- Definition

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

+ References

+ Details

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- 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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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying amount of collateralized debt obligations with maturities initially due after one year or beyond the operating cycle, if longer, excluding the current portion. Obligations include, but not limited to, mortgage loans, chattel loans, and other borrowings secured by assets.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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- Details

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- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
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Balance Type:
Period Type:

- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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Note 9 - Long-term Debt (Details Textual) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Feb. 28, 2017	May 31, 2016	May 31, 2015	Aug. 19, 2019	Feb. 19, 2019	Aug. 19, 2018	May 04, 2016
Long-term Debt, Current Maturities	$ 26,718	$ 6,806
Line Of Credit Facility Provisions		$ 0	$ 0
Notes Payable, Other Payables [Member]
Debt Instrument, Interest Rate, Stated Percentage	11.125%
Debt Instrument, Interest Rate, Effective Percentage	11.81%
Debt Instrument, Face Amount	$ 400,000
Minimum [Member]
Line of Credit Facility, Interest Rate at Period End	1.25%
Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity	$ 80,000						$ 80,000
Line of Credit Facility Step Down Rate	0.25%
Line Of Credit Facility Net Leverage Ratio	3
Long-term Line of Credit	$ 20,000
Revolving Credit Facility [Member] \| Scenario, Forecast [Member]
Line of Credit Facility, Maximum Borrowing Capacity				$ 50,000	$ 60,000	$ 70,000
Revolving Credit Facility [Member] \| Weighted Average [Member]
Debt Instrument, Interest Rate, Stated Percentage	4.85%
Revolving Credit Facility [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate	3.75%
Revolving Credit Facility [Member] \| London Interbank Offered Rate (LIBOR) [Member] \| Minimum [Member]
Debt Instrument, Basis Spread on Variable Rate	0.00%
Revolving Credit Facility [Member] \| Base Rate [Member]
Debt Instrument, Basis Spread on Variable Rate	2.75%
Letter of Credit [Member]
Line of Credit Facility, Maximum Borrowing Capacity	$ 25,000
Long-term Line of Credit	$ 0
Senior Credit Facilities [Member] \| Federal Funds Effective Rate [Member]
Debt Instrument, Basis Spread on Variable Rate	0.50%
Senior Credit Facilities [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate	1.00%
Original Term Loan Facility [Member]
Secured Long-term Debt, Noncurrent	$ 663,300
Term Loan Facility [Member]
Debt Instrument, Interest Rate, Stated Percentage	5.00%	0.25%
Debt Instrument, Interest Rate, Effective Percentage	6.18%
Debt Instrument Pricipal Payment Percent	0.25%
Long-term Debt, Current Maturities	$ 1,700
Term Loan Facility [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate	3.75%
Term Loan Facility [Member] \| Base Rate [Member]
Debt Instrument, Basis Spread on Variable Rate	2.75%