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Leases (Tables) | 9 Months Ended
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Sep. 30, 2021
Leases |
Schedule of right-of-use assets and lease liabilities | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  |  |  | September 30, |  | December 31,
(dollars in thousands) |  | ​ |  | 2021 |  | 2020
Lease Right-of-Use Assets | ​ | Classification | ​ | ​ | ​ | ​ | ​ | ​
Operating lease right-of-use assets |  | Operating lease right-of-use assets | ​ | $ | 3,821 | ​ | $ | 6,918
Finance lease right-of-use assets |  | Land, premises and equipment, net | ​ |  | 116 | ​ |  | 202
Total lease right-of-use assets | ​ | ​ | ​ | $ | 3,937 | ​ | $ | 7,120
Lease Liabilities |  |  | ​ |  | ​ | ​ |  |
Operating lease liabilities |  | Operating lease liabilities | ​ | $ | 4,428 | ​ | $ | 7,861
Finance lease liabilities |  | Long-term debt | ​ |  | 261 | ​ |  | 430
Total lease liabilities | ​ | ​ | ​ | $ | 4,689 | ​ | $ | 8,291
Schedule of weighted average remaining lease term and average discount rate | ​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | September 30, | ​ | December 31, |
​ |  | 2021 |  | 2020 | ​
Weighted-average remaining lease term, years | ​ | ​ | ​ | ​ | ​
Operating leases |  | 3.4 | ​ | 5.8 | ​
Finance leases |  | 1.0 | ​ | 1.8 | ​
Weighted-average discount rate |  | ​ | ​ |  | ​
Operating leases |  | 2.6 | % | 2.9 | %
Finance leases |  | 7.8 | % | 7.8 | %
Schedule of lease costs and other lease information | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three months ended |  | Nine months ended
​ | ​ | September 30, | ​ | September 30,
(dollars in thousands) |  | 2021 |  | 2020 |  | 2021 | ​ | 2020
Lease costs |  | ​ | ​ | ​ | ​ | ​ |  | ​ | ​ | ​ | ​ |
Operating lease cost | ​ | $ | 429 | ​ | $ | 634 | ​ | $ | 1,417 | ​ | $ | 1,825
Variable lease cost | ​ | ​ | 192 | ​ | ​ | 223 | ​ |  | 583 | ​ |  | 888
Short-term lease cost | ​ | ​ | 89 | ​ | ​ | 102 | ​ |  | 172 | ​ |  | 304
Finance lease cost | ​ | ​ | ​ | ​ | ​ | ​ | ​ |  |  | ​ |  |
Interest on lease liabilities | ​ | ​ | 7 | ​ | ​ | 10 | ​ |  | 22 | ​ |  | 33
Amortization of right-of-use assets | ​ | ​ | 29 | ​ | ​ | 29 | ​ |  | 87 | ​ |  | 87
Sublease income | ​ | ​ | (51) | ​ | ​ | (57) | ​ |  | (163) | ​ |  | (175)
Net lease cost | ​ | $ | 695 | ​ | $ | 941 | ​ | $ | 2,118 | ​ | $ | 2,962
Other information | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |  |
Cash paid for amounts included in the measurement of lease liabilities operating cash flows from operating leases | ​ | $ | 411 | ​ | $ | 628 | ​ | $ | 1,372 | ​ | $ | 1,807
Right-of-use assets obtained in exchange for new operating lease liabilities | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ |  | 1,531
Schedule of future minimum payments for finance leases | Future minimum payments for finance and operating leases with initial or remaining terms of one year or more as of September 30, 2021 were as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Finance | ​ | Operating
(dollars in thousands) |  | Leases |  | Leases
Twelve months ended | ​ | ​ | ​ | ​ | ​ | ​
September 30, 2022 | ​ | $ | 251 | ​ | $ | 1,597
September 30, 2023 | ​ |  | 21 | ​ |  | 1,439
September 30, 2024 | ​ |  | — | ​ |  | 676
September 30, 2025 | ​ |  | — | ​ |  | 389
September 30, 2026 | ​ |  | — | ​ |  | 250
Thereafter | ​ |  | — | ​ |  | 238
Total future minimum lease payments | ​ | $ | 272 | ​ | $ | 4,589
Amounts representing interest | ​ |  | (11) | ​ |  | (161)
Total operating lease liabilities | ​ | $ | 261 | ​ | $ | 4,428
Schedule of future minimum payments for operating leases | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Finance | ​ | Operating
(dollars in thousands) |  | Leases |  | Leases
Twelve months ended | ​ | ​ | ​ | ​ | ​ | ​
September 30, 2022 | ​ | $ | 251 | ​ | $ | 1,597
September 30, 2023 | ​ |  | 21 | ​ |  | 1,439
September 30, 2024 | ​ |  | — | ​ |  | 676
September 30, 2025 | ​ |  | — | ​ |  | 389
September 30, 2026 | ​ |  | — | ​ |  | 250
Thereafter | ​ |  | — | ​ |  | 238
Total future minimum lease payments | ​ | $ | 272 | ​ | $ | 4,589
Amounts representing interest | ​ |  | (11) | ​ |  | (161)
Total operating lease liabilities | ​ | $ | 261 | ​ | $ | 4,428

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