Revenue From Contracts With Customers (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2018	Mar. 31, 2017
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contracts with customers	$ 68,869	$ 63,710
Financial revenues	4,518	4,447
Revenue, Net	73,387	68,157
Services
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contracts with customers	39,421	35,799
Merchandise
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contracts with customers	21,939	21,006
Cemetery interment rights
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contracts with customers	7,509	6,905
Funeral
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contracts with customers	56,282	51,962
Financial revenues	2,312	2,249
Revenue, Net	58,594	54,211
Funeral \| Services
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contracts with customers	36,300	32,799
Funeral \| Merchandise
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contracts with customers	19,982	19,163
Funeral \| Cemetery interment rights
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contracts with customers	0	0
Cemetery
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contracts with customers	12,587	11,748
Financial revenues	2,206	2,198
Revenue, Net	14,793	13,946
Cemetery \| Services
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contracts with customers	3,121	3,000
Cemetery \| Merchandise
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contracts with customers	1,957	1,843
Cemetery \| Cemetery interment rights
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contracts with customers	7,509	6,905
Preneed Cemetery Trust Investments [Member]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Preneed funeral commission income	260	303
Investment Income, Net	3,463	3,323
Preneed trust management fees	348	339
Preneed cemetery finance charges	447	482
Preneed Cemetery Trust Investments [Member] \| Funeral
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Preneed funeral commission income	260	303
Investment Income, Net	1,914	1,809
Preneed trust management fees	138	137
Preneed cemetery finance charges	0	0
Preneed Cemetery Trust Investments [Member] \| Cemetery
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Preneed funeral commission income	0	0
Investment Income, Net	1,549	1,514
Preneed trust management fees	210	202
Preneed cemetery finance charges	$ 447	$ 482

Finance Charges

No definition available.

Name:	csv_FinanceCharges
Namespace Prefix:	csv_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Funeral Commission Income

+ References

No definition available.

+ Details

Name:	csv_FuneralCommissionIncome
Namespace Prefix:	csv_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The aggregate financial services revenue and operating interest income earned during the reporting period.

+ References

+ Details

Name:	us-gaap_FinancialServicesRevenue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount after accretion (amortization) of discount (premium), and investment expense, of interest income and dividend income on nonoperating securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.8)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.7(a),(b))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.9)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

+ Details

Name:	us-gaap_InvestmentIncomeNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Revenue, comprised of base and incentive revenue derived from the management of joint ventures, managing third-party properties, or another entity's operations.

+ References

+ Details

Name:	us-gaap_ManagementFeesRevenue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 32
-Paragraph 2A
-URI http://asc.fasb.org/extlink&oid=82859839&loc=SL82860478-203043

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130543-203045

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130539-203045

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130545-203045

+ Details

Name:	us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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_RevenueInitialApplicationPeriodCumulativeEffectTransitionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

+ Details

Name:	us-gaap_SalesRevenueNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	us-gaap_ProductOrServiceAxis=csv_FuneralAndCemeteryServicesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ProductOrServiceAxis=csv_MerchandiseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

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

- Details

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

- Details

Name:	us-gaap_SubsegmentsAxis=csv_PreneedCemeteryTrustInvestmentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: