Receivables (Preneed cemetery receivables) (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Debt and Equity Securities, FV-NI [Line Items]
Preneed cemetery receivables	$ 52,726		$ 52,855
Unearned finance charges associated with receivables	4,573		4,644
Receivables From Preneed Funeral Trust Gross	48,153		48,211
Less: balances due on undelivered cemetery preneed contracts	(10,795)		(10,353)
Preneed cemetery receivables, net	22,561		23,150
Allowance for Contract Cancellations [Roll Forward]
Beginning balance	990
Provision	(837)	$ (588)
Ending balance	978
Trade and financed receivables	24,209		24,357
Receivables from Preneed Funeral Trusts	(19,160)		(19,009)
Preneed Funeral Trust Funds Allowance For Contract Cancellation And Credit Loss	(1,642)		(1,704)
Accounts Receivable, after Allowance for Credit Loss	(13,155)		(13,004)
Cemetery
Allowance for Contract Cancellations [Roll Forward]
Beginning balance	625
Ending balance	599
Trade and financed receivables	13,754		13,629
Preneed Cemetery Receivables [Member]
Allowance for Contract Cancellations [Roll Forward]
Beginning balance	1,079
Write-offs and cancellations	(221)
Provision	(185)
Ending balance	1,043
Interment rights
Debt and Equity Securities, FV-NI [Line Items]
Preneed cemetery receivables	40,635		40,863
Merchandise and services
Debt and Equity Securities, FV-NI [Line Items]
Preneed cemetery receivables	$ 7,518		$ 7,348

Allowance for Contract Cancellations [Roll Forward]

No definition available.

Name:	csv_AllowanceForContractCancellationsRollForward
Namespace Prefix:	csv_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Preneed Cemetery Receivable, after Allowance for Credit Loss

+ References

No definition available.

+ Details

Name:	csv_PreneedCemeteryReceivableafterAllowanceforCreditLoss
Namespace Prefix:	csv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The allowance for contract cancellation related to preneed funeral funds.

+ References

No definition available.

+ Details

Name:	csv_PreneedFuneralTrustFundsAllowanceForContractCancellationAndCreditLoss
Namespace Prefix:	csv_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Preneed Receivables, Balances Due on Undelivered Contracts

+ References

No definition available.

+ Details

Name:	csv_PreneedReceivablesBalancesDueonUndeliveredContracts
Namespace Prefix:	csv_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Preneed Receivables, Gross

+ References

No definition available.

+ Details

Name:	csv_PreneedReceivablesGross
Namespace Prefix:	csv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

A contracted amount representing a promise to pay the Entity (holder) a definite sum of money at a future date, net of any write-downs taken for collection uncertainty on the part of the holder. Such amount may include accrued interest receivable in accordance with the terms of the contract. May include both pledged and unpledged holdings.

+ References

No definition available.

+ Details

Name:	csv_PreneedReceivablesNetOfAllowanceForBadDebts
Namespace Prefix:	csv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

An amount representing assets in trusts, reported at cost before allowance for contract cancellations, which are controlled and operated by third parties in which the Company does not have a controlling financial interest (less than 50%) in the trust assets.

+ References

No definition available.

+ Details

Name:	csv_ReceivablesFromPreneedFuneralTrustGross
Namespace Prefix:	csv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

An amount representing assets in trusts, reported at cost, which are controlled and operated by third parties in which the Company does not have a controlling financial interest (less than 50%) in the trust assets. May include both pledged and unpledged holdings.

+ References

No definition available.

+ Details

Name:	csv_ReceivablesFromPreneedFuneralTrusts
Namespace Prefix:	csv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=124259787&loc=d3e4428-111522

+ Details

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

- Definition

Amount of allowance for credit loss on accounts receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 13
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=123577603&loc=d3e5074-111524

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 13
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446

+ Details

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

- Definition

Amount of direct write-downs of accounts receivable charged against the allowance.

+ References

+ Details

Name:	us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Unearned discounts (other than cash or quantity discounts and the like), finance charges, and interest included in the face amount of receivables, that are shown as a deduction from the related receivables. For example, 1) finance charges booked as a receivable when a loan is made and recognized as income at a later date; and 2) interest charges deducted from the face loan amount, resulting in a discounted amount actually advanced to the borrower (wherein the receivable includes the amount actually advanced to the borrower and the as yet unearned interest income).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=124259787&loc=d3e4519-111522

+ Details

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

- Definition

Amount of expense (reversal of expense) for expected credit loss on accounts receivable.

+ References

+ Details

Name:	us-gaap_ProvisionForDoubtfulAccounts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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

Name:	us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=csv_CemeteryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=csv_PreneedCemeteryReceivablesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=csv_CemeteryIntermentRightsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=csv_CemeteryMerchandiseandServicesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: