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Note Receivable and Customers' Advances for Construction (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) Municipality	Dec. 31, 2020 USD ($)
Note Receivable and Customers' Advances for Construction [Abstract]
Number of municipalities with agreements to extend water service | Municipality	1
Interest income on note receivable	$ 164	$ 139
Interest rate on note outstanding	7.50%
Amounts Related to Water District Projects Included in Balance Sheet [Abstract]
Note receivable, including interest	$ 255	255
Customers' advances for construction	284	302
Other customers' advances for construction	$ 12,536	$ 10,024

X

- Definition

Amount, after allowance for credit loss, of financing receivable, classified as noncurrent.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(3))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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

X

- Definition

Stated interest rate of notes receivable from time-sharing transactions.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 978
-SubTopic 310
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123360121&loc=d3e27327-108691

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- References

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X

- Definition

For utilities only, represents the carrying amount of the liability related to water district projects as of the balance sheet date for payments received by a utility from its customers in advance of performing its obligations under terms of its construction agreements.

+ References

No definition available.

+ Details

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

X

- Definition

The amount of interest income on notes receivable.

+ References

No definition available.

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- References

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- Definition

Number of municipalities the Company has agreement with to extend water service into previously formed water districts.

+ References

No definition available.

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- Definition

For utilities only, represents the carrying amount of the liability related to other projects as of the balance sheet date for payments received by a utility from its customers in advance of performing its obligations under terms of its construction agreements.

+ References

No definition available.

+ Details

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