| Document and Entity Information | Aug. 25, 2022 |
| Cover [Abstract] | |
| Amendment Flag | false |
| Entity Central Index Key | 0001075706 |
| Document Type | 8-K |
| Document Period End Date | Aug. 25, 2022 |
| Entity Registrant Name | CITIZENS HOLDING COMPANY |
| Entity Incorporation State Country Code | MS |
| Entity File Number | 001-15375 |
| Entity Tax Identification Number | 64-0666512 |
| Entity Address, Address Line One | 521 Main Street |
| Entity Address, City or Town | Philadelphia |
| Entity Address, State or Province | MS |
| Entity Address, Postal Zip Code | 39350 |
| City Area Code | (601) |
| Local Phone Number | 656-4692 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Common Stock, $0.20 par value |
| Trading Symbol | CIZN |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
