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Revenue from Contracts with Customers (Tables)
 12 Months Ended
Dec. 31, 2022
Revenue from Contract with Customer [Abstract]  
Summary of Noninterest Income by Revenue Stream The following table presents the Company’s noninterest income by revenue stream for the years ended December 31:
20222021
(dollars in thousands)
Deposit service charges and fees
Interchange income$2,055 $1,959 
Merchant service fees508 568 
Overdraft fees310 316 
Other931 855 
Loan referral fees810 2,126 
Mortgage broker fees257 920 
BaaS program income (1)
12,934 6,716 
Other income (2)
346 393 
Total noninterest income subject to Topic 60618,151 13,853 
BaaS enhancements / guarantees (1)
105,945 10,591 
Gain (loss) on equity investment(153)1,469 
Gain on sale of branch— 1,263 
Gain on sale of loans, net— 396 
Loan servicing fees223 248 
Earnings on life insurance361 172 
Lease and sublease income157 126 
Total noninterest income not subject to Topic 606106,533 14,265 
Total noninterest income$124,684 $28,118 
(1)See description below for detailed components of BaaS fees and related Topic 606 applicability.
(2)Includes the following immaterial income streams that are within the scope of Topic 606: wire transfer fees, annuity fees, and brokerage fees.
The following tables presents the BaaS fees that are within and not within the scope of Topic 606:
Year Ended
December 31,		Increase
(Decrease)
(dollars in thousands) 20222021
Program income - within the scope of Topic 606
Servicing and other BaaS fees$4,408 $4,467 $(59)
Transaction3,211 544 2,667 
Interchange2,583 701 1,882 
Reimbursement of expenses2,732 1,004 1,728 
Total BaaS program income12,934 6,716 6,218 
Guarantees - not within the scope of Topic 606:
BaaS credit enhancement76,374 9,086 67,288 
BaaS fraud enhancement29,571 1,505 28,066 
Total BaaS enhancements / guarantees105,945 10,591 95,354 
Total BaaS fees$118,879 $17,307 $101,572