Paycheck Protection Promissory ("PPP") Related Loans - Additional Information (Detail) - USD ($)	1 Months Ended			12 Months Ended
	Aug. 31, 2021	Dec. 31, 2020	Nov. 30, 2020	Feb. 28, 2022	Feb. 28, 2021	Feb. 11, 2021	Jan. 27, 2021	Apr. 23, 2020	Apr. 13, 2020
Debt Instrument Short Term And Long Term [Line Items]
Gain upon debt extinguishment				$ 1,084,000	$ 988,000
Parent Company [Member] | Renasant Bank [Member] | First Round Paycheck Protection Promissory Note Loan [Member]
Debt Instrument Short Term And Long Term [Line Items]
Debt instrument face value								$ 772,000
Parent Company [Member] | Renasant Bank [Member] | Second Round Paycheck Protection Promissory Note Loan [Member]
Debt Instrument Short Term And Long Term [Line Items]
Debt instrument face value						$ 780,112
Lexel Imaging Subsidary [Member] | Central Bank [Member] | First Round Paycheck Protection Promissory Note Loan [Member]
Debt Instrument Short Term And Long Term [Line Items]
Debt instrument face value									$ 216,200
Lexel Imaging Subsidary [Member] | Central Bank [Member] | Second Round Paycheck Protection Promissory Note Loan [Member]
Debt Instrument Short Term And Long Term [Line Items]
Debt instrument face value							$ 304,442
Gain upon debt extinguishment	$ 1,084,554
Loan Under Paycheck Protection Programme Cares Act [Member] | Parent Company [Member] | Renasant Bank [Member] | First Round Paycheck Protection Promissory Note Loan [Member] | Other Income [Member]
Debt Instrument Short Term And Long Term [Line Items]
Gain upon debt extinguishment		$ 772,000
Loan Under Paycheck Protection Programme Cares Act [Member] | Lexel Imaging Subsidary [Member] | Central Bank [Member] | First Round Paycheck Protection Promissory Note Loan [Member] | Other Income [Member]
Debt Instrument Short Term And Long Term [Line Items]
Gain upon debt extinguishment			$ 216,200