Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2018	Mar. 04, 2019	Jun. 30, 2018
Entity Information [Line Items]
Entity Registrant Name	CITIZENS INC
Entity Central Index Key	0000024090
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Filer Category	Accelerated Filer
Entity Public Float			$ 381,928,058
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	FY
Document Type	10-K
Amendment Flag	false
Entity Shell Company	false
Document Period End Date	Dec. 31, 2018
Common Stock Class A [Member]
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		49,227,795
Common Stock Class B [Member]
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		1,001,714