Summary of Significant Accounting Policies Cost of Customer Relationships Acquired (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Number of years of available premiums	50 years
Number of Years-Cost of Customer Relationship Acquired Amortization	5 years
Cost of customer relationships acquired	$ 10,260	$ 10,611	$ 11,541
Amortization	(974)	(1,206)
Present Value of Future Insurance Profits, Unrealized Gain (Loss) on Investment	623	$ 276
2023	1,107
2024	965
2025	849
2026	750
2027	665
Thereafter	5,509
Intangible Assets Arising from Insurance Contracts Acquired in Business Combination, Amortization Expense	9,845
Effects of unrealized (gains) losses on CCRA	$ 415
Customer Relationships [Member] \| Minimum [Member]
Interest Accrual Rate Associated with Amortization Method of Present Value of Future Insurance Profits	3.70%
Customer Relationships [Member] \| Maximum [Member]
Interest Accrual Rate Associated with Amortization Method of Present Value of Future Insurance Profits	8.50%

Intangible Assets Arising from Insurance Contracts Acquired in Business Combination, Amortization Expense

No definition available.

Name:	cia_IntangibleAssetsArisingFromInsuranceContractsAcquiredInBusinessCombinationAmortizationExpense
Namespace Prefix:	cia_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of amortization expense expected to be recognized during the remaining years following the fifth fiscal year for intangible assets arising from insurance contracts acquired in a business combination.

+ References

No definition available.

+ Details

Name:	cia_IntangibleAssetsArisingFromInsuranceContractsAcquiredInBusinessCombinationAmortizedExpenseAfterFiveYears
Namespace Prefix:	cia_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Number of years the company has estimated future amortization for cost of customer relationship acquired on the financial statement.

+ References

No definition available.

+ Details

Name:	cia_NumberofYearsCostofCustomerRelationshipAcquiredAmortization
Namespace Prefix:	cia_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The estimated number of years of available premiums (gross premium less the benefit and expense portion of premium) as determined through an annual recoverability test used in calculating deferred policy acquisition costs.

+ References

No definition available.

+ Details

Name:	cia_Numberofyearsofavailablepremiums
Namespace Prefix:	cia_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of adjustment to reflect the effect that would have been recognized had the unrealized holding gain (loss) actually been realized on the present value of future insurance profits being amortized using the gross profit method and the present value of future profits recognized as a result of a purchase of an insurance entity holding long-duration contracts.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section S99
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=123602591&loc=d3e88052-122713

+ Details

Name:	us-gaap_EffectsOfUnrealizedHoldingGainLossOnPresentValueOfFutureInsuranceProfits1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Rate of interest used in determination of present value of future profits on insurance contract acquired in business combination.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 20
-Section S99
-Paragraph 2
-Subparagraph (2)
-URI https://asc.fasb.org/extlink&oid=122135039&loc=d3e569990-122904

+ Details

Name:	us-gaap_InterestAccrualRateAssociatedWithAmortizationMethodOfPresentValueOfFutureInsuranceProfits
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of amortization expense (reversal of expense) for present value of future profits of insurance contract acquired in business combination.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(2)
-URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 20
-Section S99
-Paragraph 2
-Subparagraph (2)
-URI https://asc.fasb.org/extlink&oid=122135039&loc=d3e569990-122904

+ Details

Name:	us-gaap_PresentValueOfFutureInsuranceProfitsAmortizationExpense1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of amortization for present value of future profits of insurance contract acquired in business combination expected to be recognized during fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(3)
-URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 805
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=6918812&loc=d3e30762-158568

+ Details

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

- Definition

Amount of amortization for present value of future profits of insurance contract acquired in business combination expected to be recognized during fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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

- Definition

Amount of amortization for present value of future profits of insurance contract acquired in business combination expected to be recognized during next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 805
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=6918812&loc=d3e30762-158568

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(3)
-URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

+ Details

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

- Definition

Amount of amortization for present value of future profits of insurance contract acquired in business combination expected to be recognized during third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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

- Definition

Amount of amortization for present value of future profits of insurance contract acquired in business combination expected to be recognized during second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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

- Definition

Amount of unrealized investment gain (loss) which decreases (increases) present value of future profits of insurance contract acquired in business combination.

+ References

No definition available.

+ Details

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

- Definition

Amount, after accumulated amortization, of present value of future profits of insurance contract acquired in business combination.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 20
-Section S99
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=122135039&loc=d3e569990-122904

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.10)
-URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910

+ Details

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

- Details

Name:	us-gaap_FairValueByAssetClassAxis=us-gaap_CustomerRelationshipsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: