Annual cash retainer approved to be paid to audit committee chair

No definition available.

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- Definition

Annual cash retainer approved to be paid to compensation and corporate governance committee chair.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

Annual cash retainer approved to be paid to each independent director, in quarterly installments.

+ References

No definition available.

+ Details

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Balance Type:	debit
Period Type:	instant

- Definition

Annual cash retainer approved to be paid to each independent director for each regular or special meeting.

+ References

No definition available.

+ Details

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

- Definition

Annual equity retainer approved to be paid to each independent director. To be paid in shares of entity common stock.

+ References

No definition available.

+ Details

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

- Definition

Pre tax compensation expense related to director fees, annual retainers, and deferred compensation amortization.

+ References

No definition available.

+ Details

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

- Definition

Annual cash retainer approved to be paid to lead director, in quarterly installments.

+ References

No definition available.

+ Details

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

- Definition

Annual cash retainer approved to be paid to other committee members and chairment for each regular or special meeting.

+ References

No definition available.

+ Details

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

- Definition

Weighted average purchase price of capital shares purchased through an employee stock purchase plan.

+ References

No definition available.

+ Details

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Namespace Prefix:	csv_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of options outstanding and unvested as of the end of the period.

+ References

No definition available.

+ Details

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Namespace Prefix:	csv_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The performance award exercise price, equal to the stock price plus this amount, applicable if that total is greater than $9.

+ References

No definition available.

+ Details

Name:	csv_PerformanceAwardPurchasePrice1
Namespace Prefix:	csv_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

The performance award exercise price, applicable if equal to the stock price plus $.5 is less than or equal to $9.

+ References

No definition available.

+ Details

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Namespace Prefix:	csv_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

The stock price performance hurdle fair value assumption for equity-based awards granted.

+ References

No definition available.

+ Details

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Namespace Prefix:	csv_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

The vesting rate per period of share based compensation awards.

+ References

No definition available.

+ Details

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Namespace Prefix:	csv_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Share-based Compensation, Equity Instruments Other than Options, Number of Days Market Price Must Exceed Limit to Vest

+ References

No definition available.

+ Details

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Namespace Prefix:	csv_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Share-based Compensation, Equity Instruments Other than Options, Term when Market Price Must Exceed Limit to Vest

+ References

No definition available.

+ Details

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Namespace Prefix:	csv_
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Period Type:	duration

- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(1)(i)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph g(1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

-Section F

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph 64

-Subparagraph b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SAB TOPIC 14.F)

-URI http://asc.fasb.org/extlink&oid=6793087&loc=d3e301413-122809

+ Details

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- Definition

As of the balance sheet date, the aggregate unrecognized cost of equity-based awards made to employees under equity-based compensation awards that have yet to vest.

+ References

+ Details

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

+ Details

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- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Net number of share options (or share units) granted during the period.

+ References

+ Details

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Period Type:	duration

- Definition

The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(1)(b)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(i)-(ii)

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-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(1)(a)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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- Definition

Number of shares issued during the period as a result of an employee stock purchase plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

-URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 129

-Paragraph 5

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 12

-Paragraph 10

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

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Stock-Based Compensation (Narrative) (Details) (USD $)	3 Months Ended
Stock-Based Compensation (Narrative) (Details) (USD $)	Mar. 31, 2013	Mar. 31, 2012	Mar. 05, 2012
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share based compensation awards, options granted during period	0
Share based compensation awards, options outstanding at period end (in Shares)	283,258
Share based compensation awards, options outstanding and unvested at period end (in Shares)	110,124
Shares purchased through Employee Stock Purchase Plan (in Shares)	22,027
Weighted average purchase price of ESPP shares purchased during the period (in Dollars per share)	$ 11.43
Unrecognized share based compensation, expected term (in Duration)	1 year 8 months 1 day
Directors fees approved under new Directors Compensation Policy, audit committee chair			$ 17,500
Directors fees approved under new Directors Compensation Policy, compensation and corporate governance chair			15,000
Directors fees approved under new Directors Compensation Policy, lead director			115,000
Directors fees approved under new Directors Compensation Policy, each independent director			40,000
Directors fees approved under new Directors Compensation Policy, each independent director per regular or scheduled meeting			75,000
Directors fees approved under new Directors Compensation Policy, other committee members and chairs			2,000
Directors fees approved under new Directors Compensation Policy			1,600
Directors compensation expense	133,000	161,000
Espp And Options [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share based compensation expense	146,000	97,000
Restricted Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share based compensation expense	313,000	240,000
Share based compensation awards, vesting percentage per period (in Percent)	33.33%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years
Unrecognized share based compensation	2,300,000
Performance Shares [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share based compensation expense	$ 169,000
Performance award hurdle price (in Dollars per share)	$ 21.50
Number of days market price must exceed limit to vest	3 days
Term when market price must exceed limit to vest	30 days
Performance award purchase price option 1 (in Dollars per share)	$ 0.50
Performance award purchase price option 2 (in Dollars per share)	$ 9