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Commitments, Contingencies, and Concentrations of Credit Risk (Tables) | 12 Months Ended
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Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract] |
Schedule of Outstanding Loan Commitments | The following table presents the Company’s outstanding loan commitments at December 31, 2020 and December 31, 2019.
($ in thousands) |  | December 31, 2020 |  | December 31, 2019
Type of Commitment |  | Fixed Rate |  | Variable Rate |  | Total |  | Fixed Rate |  | Variable Rate |  | Total
Loan commitments |  | $ | 238,745 |  |  | 94,218 |  |  | 332,963 |  |  | 263,775 |  |  | 123,169 |  |  | 386,944 |
Unused lines of credit |  | 188,014 |  |  | 900,046 |  |  | 1,088,060 |  |  | 169,278 |  |  | 766,450 |  |  | 935,728 |
Total |  | $ | 426,759 |  |  | 994,264 |  |  | 1,421,023 |  |  | 433,053 |  |  | 889,619 |  |  | 1,322,672 |
Schedule of Maximum Credit Risk for Securities | The following are the fair values at December 31, 2020 of securities to any one issuer/guarantor that exceed $5.0 million, with such amounts representing the maximum amount of credit risk that the Company would incur if the issuer did not repay the obligation.
($ in thousands) Issuer |  | Amortized Cost |  | Fair Value
Fannie Mae – mortgage-backed securities |  | $ | 571,245 |  |  | 585,035 |
Freddie Mac – mortgage-backed securities |  | 549,811 |  |  | 552,830 |
Ginnie Mae – mortgage-backed securities |  | 234,780 |  |  | 237,159 |
Federal Farm Credit Bank – bonds |  | 40,015 |  |  | 40,356 |
Federal Home Loan Bank system - bonds |  | 30,000 |  |  | 29,850 |
Small Business Administration securities |  | 22,150 |  |  | 22,436 |
Federal Reserve Bank - common stock |  | 17,671 |  |  | 17,671 |
First Citizens Bank – corporate bonds |  | 11,000 |  |  | 10,999 |
Bank of America corporate bonds |  | 7,000 |  |  | 7,409 |
Citigroup, Inc. corporate bonds |  | 6,014 |  |  | 6,346 |
Federal Home Loan Bank of Atlanta - common stock |  | 5,855 |  |  | 5,855 |
Loudoun County, Virginia - municipal bond |  | 5,599 |  |  | 5,735 |
Goldman Sachs Group Inc. corporate bond |  | 5,037 |  |  | 5,319 |
JP Morgan Chase corporate bond |  | 5,009 |  |  | 5,294 |

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