Loans Held for Investment - Non-accrual Loans (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Non-accrual loans
Non-accrual Loans With Allowance	$ 13,350,000		$ 13,350,000		$ 20,934,000
Non-accrual Loans With No Allowance	18,294,000		18,294,000		26,378,000
Non-accrual loans	31,644,000		31,644,000		47,312,000
Interest Income Recognized	$ 2,145,000	$ 1,529,000	$ 2,941,000	$ 2,775,000
Number of loan relationships	5		5
Decrease in non-accrual status loans			$ 15,700,000
Commercial real estate | Non-owner occupied
Non-accrual loans
Non-accrual Loans With Allowance	$ 603,000		603,000		413,000
Non-accrual Loans With No Allowance	653,000		653,000		1,853,000
Non-accrual loans	1,256,000		1,256,000		2,266,000
Interest Income Recognized	60,000	54,000	157,000	128,000
Decrease in non-accrual status loans			1,000,000.0
Commercial real estate | Owner occupied
Non-accrual loans
Non-accrual Loans With Allowance	3,084,000		3,084,000		3,058,000
Non-accrual Loans With No Allowance	607,000		607,000		1,277,000
Non-accrual loans	3,691,000		3,691,000		4,335,000
Interest Income Recognized	334,000	139,000	417,000	229,000
Commercial and industrial
Non-accrual loans
Non-accrual Loans With Allowance	9,112,000		9,112,000		16,536,000
Non-accrual Loans With No Allowance	4,203,000		4,203,000		5,942,000
Non-accrual loans	13,315,000		13,315,000		22,478,000
Interest Income Recognized	439,000	331,000	627,000	474,000
Decrease in non-accrual status loans			9,200,000
Construction and Land Development
Non-accrual loans
Non-accrual Loans With Allowance	1,000		1,000		2,000
Non-accrual loans	1,000		1,000		2,000
Interest Income Recognized	8,000	20,000	15,000	35,000
1 - 4 family residential
Non-accrual loans
Non-accrual Loans With Allowance	531,000		531,000		902,000
Non-accrual Loans With No Allowance	12,831,000		12,831,000		17,306,000
Non-accrual loans	13,362,000		13,362,000		18,208,000
Interest Income Recognized	1,304,000	1,106,000	1,725,000	2,030,000
Decrease in non-accrual status loans			4,800,000
1 - 4 family residential | Secured by Residential Properties [Member]
Non-accrual loans
Non-accrual loans held for sale	3,200,000		3,200,000		2,900,000
Consumer
Non-accrual loans
Non-accrual Loans With Allowance	19,000		19,000		23,000
Non-accrual loans	$ 19,000		$ 19,000		$ 23,000
Interest Income Recognized		$ (121,000)		$ (121,000)