Fair Value of Assets and Liabilities (Carrying Amount and Estimated Fair Value of Financial Instruments) (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Assets:
Securities available-for-sale, at fair value	$ 511,095	$ 482,328
Securities held to maturity, fair value	109,751	108,080
Liabilities:
Noninterest-bearing demand deposits	931,477	965,552
Interest-bearing demand deposits	929,454	836,731
Time deposits	971,653	844,640
Carrying Amount
Assets:
Cash and cash equivalents	557,127	387,570
Securities available-for-sale, at fair value	511,095	482,328
Securities held to maturity, fair value	123,364	126,659
Other investments	14,888	14,740
Loans and leases, net and loans held for sale	4,193,150	3,874,913
Derivative financial instruments and interest rate swap agreements, asset	13,296	12,135
Liabilities:
Noninterest-bearing demand deposits	931,477	965,552
Interest-bearing demand deposits	929,454	836,731
Money market and savings deposits	2,218,313	2,039,560
Time deposits	971,653	844,640
Borrowings	1,301	8,135
Subordinated debt	138,604	39,684
Derivative financial instruments and interest rate swap agreements, liability	13,633	13,198
Estimated Fair Value
Assets:
Cash and cash equivalents	557,127	387,570
Securities available-for-sale, at fair value	511,095	482,328
Securities held to maturity, fair value	109,751	108,080
Loans and leases, net and loans held for sale	4,129,313	3,768,452
Derivative financial instruments and interest rate swap agreements, asset	13,296	12,135
Liabilities:
Noninterest-bearing demand deposits	931,477	965,552
Interest-bearing demand deposits	929,454	836,731
Money market and savings deposits	2,218,313	2,039,560
Time deposits	973,984	844,694
Borrowings	1,301	8,135
Subordinated debt	137,666	38,043
Derivative financial instruments and interest rate swap agreements, liability	13,633	13,198
Fair Value, Inputs, Level 1
Assets:
Cash and cash equivalents	557,127	387,570
Fair Value, Inputs, Level 2
Assets:
Securities available-for-sale, at fair value	511,095	482,328
Securities held to maturity, fair value	109,751	108,080
Derivative financial instruments and interest rate swap agreements, asset	13,296	12,135
Liabilities:
Noninterest-bearing demand deposits	931,477	965,552
Interest-bearing demand deposits	929,454	836,731
Money market and savings deposits	2,218,313	2,039,560
Time deposits	973,984	844,694
Borrowings	1,301	8,135
Derivative financial instruments and interest rate swap agreements, liability	13,633	13,198
Fair Value, Inputs, Level 3
Assets:
Loans and leases, net and loans held for sale	4,129,313	3,768,452
Liabilities:
Subordinated debt	$ 137,666	$ 38,043

SMARTFINANCIAL INC. 10-Q