| Component: (Network and Table) | |
|---|---|
| Network | 188 - Disclosure - Fair Values of Financial Instruments - Assets Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs (Detail) (http://www.citizensholdingcompany.com/taxonomy/role/DisclosureFairValuesOfFinancialInstrumentsAssetsMeasuredAtFairValueOnRecurringBasisUsingSignificantUnobservableInputs) |
| Table | (Implied) |
| Reporting Entity [Axis] | 0001075706 (http://www.sec.gov/CIK) |
| Fair Value Disclosures [Abstract] | Period [Axis] | |
|---|---|---|
2016-01-01 - 2016-12-31 | 2015-01-01 - 2015-12-31 | |
Fair Value Disclosures [Abstract] | ||
Balance at January 1 | ||
Principal payments received | ( | ( |
Unrealized gains included in other comprehensive income | ||
Balance at December 31 | 2,915,709 | |