Floor rate on a debt instrument variable rate basis.

No definition available.

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Balance Type:	na
Period Type:	duration

- Definition

Maximum aggregate amount of quarterly dividends which the Company may pay if in compliance with financial covenants.

+ References

No definition available.

+ Details

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Namespace Prefix:	hayn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents the maximum excess availability amount.

+ References

No definition available.

+ Details

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Namespace Prefix:	hayn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Represents the maximum excess availability percentage.

+ References

No definition available.

+ Details

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- Definition

The fronting fee, expressed as a percentage of the line of credit facility.

+ References

No definition available.

+ Details

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Data Type:	dtr-types:percentItemType
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Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility permitted under the amended agreement at the request of borrowers.

+ References

No definition available.

+ Details

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

- Definition

Represents the percentage of the equity interest in direct foreign subsidiaries pledged as collateral for borrowings under the line of credit facility arrangement.

+ References

No definition available.

+ Details

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- 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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Period Type:	duration

- 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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
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-Section S99
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-Name Accounting Standards Codification
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910

+ Details

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

- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

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.

+ References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- 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

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

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

+ Details

Name:	us-gaap_LongTermDebtTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

The carrying value as of the balance sheet date of the noncurrent portion 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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
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-Section 45
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-URI https://asc.fasb.org/extlink&oid=99376301&loc=d3e1336-112600

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-Section 45
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-URI https://asc.fasb.org/extlink&oid=99376301&loc=d3e1314-112600

+ Details

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Namespace Prefix:	us-gaap_
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Period Type:	instant

- Details

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- Details

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Debt - US Revolving Credit Facility (Details) - USD ($) $ in Thousands	Oct. 19, 2020	Oct. 07, 2022	Oct. 06, 2022	Sep. 30, 2022
Debt
Revolving credit facilities - Long-term				$ 74,721
Credit Agreement
Debt
Term of debt agreement	3 years
Maximum borrowing capacity		$ 160,000	$ 100,000
Increased maximum revolving loan amount at the request of the borrowers	$ 170,000
Commitment fee (as a percent)	0.425%
Excess availability, percentage, maximum	12.50%
Excess availability, amount, maximum	$ 12,500
Maximum quarterly amount of dividends which the Company may pay if in compliance with financial covenants	$ 3,500
Percentage of equity interest in direct foreign subsidiaries pledged as collateral for borrowings	100.00%
Credit Agreement \| SOFR
Debt
Basis spread on variable rate (as a percent)	0.10%
Floor rate (as a percent)	0.50%
Credit Agreement \| Minimum \| Prime rate
Debt
Basis spread on variable rate (as a percent)	1.25%
Credit Agreement \| Minimum \| Eurodollar rate
Debt
Basis spread on variable rate (as a percent)	2.25%
Credit Agreement \| Maximum \| Prime rate
Debt
Basis spread on variable rate (as a percent)	1.75%
Credit Agreement \| Maximum \| Eurodollar rate
Debt
Basis spread on variable rate (as a percent)	2.75%
Letter of Credit [Member]
Debt
Fronting fee (as a percent)	0.125%
Domestic Line of Credit [Member]
Debt
Outstanding balance				$ 74,700