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FAIR VALUE MEASUREMENTS (Tables) | 9 Months Ended
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Sep. 30, 2020
Fair Value Disclosures [Abstract] |
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | September 30, 2020
​ |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
(in thousands) | ​ | Inputs | ​ | Inputs | ​ | Inputs | ​ | Fair Value
Available for sale securities: | ​ | ​ | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​
Mortgage-backed securities: |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
US Government-sponsored enterprises | ​ | $ | — | ​ | $ | 235,172 | ​ | $ | — | ​ | $ | 235,172
US Government agency | ​ |  | — | ​ |  | 95,785 | ​ |  | — | ​ |  | 95,785
Private label | ​ |  | — | ​ |  | 19,603 | ​ |  | — | ​ |  | 19,603
Obligations of states and political subdivisions thereof | ​ |  | — | ​ |  | 154,157 | ​ |  | — | ​ |  | 154,157
Corporate bonds | ​ |  | — | ​ |  | 99,812 | ​ |  | — | ​ |  | 99,812
Derivative assets | ​ |  | — | ​ |  | 31,481 | ​ |  | 24 | ​ |  | 31,505
Derivative liabilities | ​ |  | — | ​ |  | (34,871) | ​ |  | (87) | ​ |  | (34,958)
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2019
​ |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
(in thousands) | ​ | Inputs | ​ | Inputs | ​ | Inputs | ​ | Fair Value
Available for sale securities: | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​
Mortgage-backed securities: |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
US Government-sponsored enterprises | ​ | $ | — | ​ | $ | 321,969 | ​ | $ | — | ​ | $ | 321,969
US Government agency | ​ |  | — | ​ |  | 99,661 | ​ |  | — | ​ |  | 99,661
Private label | ​ |  | — | ​ |  | 19,533 | ​ |  | — | ​ |  | 19,533
Obligations of states and political subdivisions thereof | ​ |  | — | ​ |  | 142,006 | ​ |  | — | ​ |  | 142,006
Corporate bonds | ​ |  | — | ​ |  | 80,061 | ​ |  | — | ​ |  | 80,061
Derivative assets | ​ |  | — | ​ |  | 6,791 | ​ |  | 59 | ​ |  | 6,850
Derivative liabilities | ​ |  | — | ​ |  | (8,102) | ​ |  | (84) | ​ |  | (8,186)
Schedule of Changes in Level 3 Assets Measured on a Recurring Basis | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Assets (Liabilities)
​ | ​ | Interest Rate Lock | ​ | Forward
(in thousands) |  | Commitments |  | Commitments
Three Months Ended September 30, 2020 | ​ |  | ​ | ​ |  | ​
Balance at beginning of period | ​ | $ | 63 | ​ | $ | (126)
Realized (loss) gain recognized in non-interest income | ​ |  | (39) | ​ |  | 39
Balance at end of period | ​ | $ | 24 | ​ | $ | (87)
​ | ​ | ​ | ​ | ​ | ​ | ​
Nine Months Ended September 30, 2020 | ​ |  |  | ​ |  |
Balance at beginning of period | ​ | $ | 59 | ​ | $ | (84)
Realized loss recognized in non-interest income | ​ |  | (35) | ​ |  | (3)
Balance at end of period | ​ | $ | 24 | ​ | $ | (87)
Schedule of Changes in Level 3 Liabilities Measured on a Recurring Basis | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Assets (Liabilities)
​ | ​ | Interest Rate Lock | ​ | Forward
(in thousands) |  | Commitments |  | Commitments
Three Months Ended September 30, 2020 | ​ |  | ​ | ​ |  | ​
Balance at beginning of period | ​ | $ | 63 | ​ | $ | (126)
Realized (loss) gain recognized in non-interest income | ​ |  | (39) | ​ |  | 39
Balance at end of period | ​ | $ | 24 | ​ | $ | (87)
​ | ​ | ​ | ​ | ​ | ​ | ​
Nine Months Ended September 30, 2020 | ​ |  |  | ​ |  |
Balance at beginning of period | ​ | $ | 59 | ​ | $ | (84)
Realized loss recognized in non-interest income | ​ |  | (35) | ​ |  | (3)
Balance at end of period | ​ | $ | 24 | ​ | $ | (87)
Schedule of Quantitative Information, Valuation, Recurring | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Fair Value | ​ | Fair Value | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(in thousands, | ​ | September 30, | ​ | December 31, | ​ | Valuation | ​ | Unobservable | ​ | Unobservable | ​
except ratios) |  | 2020 |  | 2019 |  | Techniques |  | Inputs |  | Input Value |
Assets (Liabilities) | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ |  | ​ |  | ​ |
Interest Rate Lock Commitment |  | $ | 24 | ​ | $ | 59 | ​ | Historical trend |  | Closing Ratio |  | ​ | 90 | %
​ | ​ |  | ​ | ​ |  | ​ | ​ | Pricing Model | ​ | Origination Costs, per loan | ​ | $ | 1.7 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |  | ​ | ​ | ​ | ​ | ​
Forward Commitments | ​ |  | (87) | ​ |  | (84) | ​ | Quoted prices for similar loans in active markets. |  | Freddie Mac pricing system | ​ |  | Pair-off contract price | ​
Total | ​ | $ | (63) | ​ | $ | (25) | ​ |  |  |  | ​ |  |  | ​
Summary of Applicable Non-Recurring Fair Value Measurements |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Fair Value
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Three Months Ended | ​ | Nine Months Ended | ​ | Measurement Date as of
​ | ​ | Sep 30, 2020 | ​ | Dec 31, 2019 | ​ | September 30, 2020 | ​ | September 30, 2020 | ​ | September 30, 2020
​ | ​ | Level 3 | ​ | Level 3 | ​ | Total | ​ | Total | ​ | Level 3
(in thousands) |  | Inputs |  | Inputs |  | Gains (Losses) |  | Gains (Losses) |  | Inputs
Assets | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |
Impaired loans | ​ | $ | 9,617 | ​ | $ | 9,625 | ​ | $ | (6) | ​ | $ | (8) | ​ | September 2020
Capitalized servicing rights | ​ |  | 3,234 | ​ | ​ | 4,301 |  | ​ | 323 |  | ​ | (1,067) |  | September 2020
Other real estate owned | ​ |  | 1,983 | ​ | ​ | 2,236 |  | ​ | (335) |  | ​ | (253) |  | September 2020
Premises held for sale | ​ |  | 1,764 | ​ | ​ | 1,764 |  | ​ | — |  | ​ | — |  | September 2019
Total | ​ | $ | 16,598 | ​ | $ | 17,926 | ​ | $ | (18) | ​ | $ | (1,328) |  |
Schedule of Quantitative Information, Valuation, Non-recurring | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(in thousands, | ​ | Fair Value | ​ | ​ | ​ | ​ | ​ | Range |
except ratios) |  | Sep 30, 2020 |  | Valuation Techniques |  | Unobservable Inputs |  | (Weighted Average)(a) |
Assets |  | ​ |  |  |  |  |  | ​ | ​ |  | ​
Impaired loans | ​ | $ | 7,071 |  | Fair value of collateral-appraised value |  | Loss severity | ​ | ​ | 0% to 53% | ​
​ | ​ | ​ | ​ | ​ | ​ |  | Appraised value | ​ | ​ | $0 to $1,730 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Impaired loans | ​ |  | 2,546 |  | Discount cash flow |  | Discount rate |  | ​ | 3.50% to 9.50% | ​
​ | ​ | ​ | ​ | ​ | ​ |  | Cash flows | ​ | ​ | $21 to $1,002 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Capitalized servicing rights | ​ |  | 3,234 |  | Discounted cash flow |  | Constant prepayment rate (CPR) |  | ​ | 16.73% | ​
​ | ​ |  |  |  |  |  | Discount rate |  | ​ | 10.05% | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Other real estate owned | ​ |  | 1,983 |  | Fair value of collateral less selling costs |  | Appraised value |  | ​ | $2,000 | ​
​ | ​ |  |  |  |  |  | Selling Costs |  | ​ | 6% | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Premises held for sale(b) | ​ |  | 1,764 |  | Fair value of asset less selling costs |  | Appraised value | ​ | ​ | $136 to $527 | ​
​ | ​ |  |  |  |  |  | Selling Costs |  | ​ | 6% | ​
Total | ​ | $ | 16,598 |  |  |  |  |  | ​ |  | ​
(a) | Where dollar amounts are disclosed, the amounts represent the lowest and highest fair value of the respective assets in the population except for adjustments for market/property conditions, which represents the range of adjustments to individual properties.
(b) | The carrying value of premises held for sale was $1.8 million as of September 30, 2020.
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(in thousands, | ​ | Fair Value | ​ | ​ | ​ | ​ | ​ | Range | ​
except ratios) |  | Dec 31, 2019 |  | Valuation Techniques |  | Unobservable Inputs |  | (Weighted Average)(a) | ​
Assets | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Impaired loans | ​ | $ | 6,137 | ​ | Fair value of collateral-appraised value | ​ | Loss severity | ​ | ​ | 0% to 55.00% | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | Appraised value | ​ | ​ | $0 to $6,915 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Impaired loans | ​ |  | 3,488 | ​ | Discount cash flow | ​ | Discount rate |  | ​ | 2.88% to 9.50% | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | Cash flows | ​ | ​ | $22 to $1,002 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Capitalized servicing rights | ​ |  | 4,301 | ​ | Discounted cash flow | ​ | Constant prepayment rate (CPR) |  | ​ | 9.95% | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | Discount rate |  | ​ | 10.07% | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Other real estate owned | ​ |  | 2,236 | ​ | Fair value of collateral less selling costs | ​ | Appraised value |  | ​ | $2,695 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | Selling Costs | ​ | ​ | 10% to 20% | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Premises held for sale(b) | ​ |  | 1,764 | ​ | Fair value of asset less selling costs | ​ | Appraised value |  | ​ | $136 to $527 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | Selling Costs |  | ​ | 6% | ​
Total | ​ | $ | 17,926 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(a) | Where dollar amounts are disclosed, the amounts represent the lowest and highest fair value of the respective assets in the population except for adjustments for market/property conditions, which represents the range of adjustments to individual properties.
(b) | The carrying value of premises held for sale was $1.8 million as of December 31, 2019.
Summary of Estimated Fair Values, and Related Carrying Amounts, of Financial Instruments | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | September 30, 2020
​ | ​ | Carrying | ​ | Fair | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(in thousands) |  | Amount |  | Value |  | Level 1 |  | Level 2 |  | Level 3
Financial Assets |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Cash and cash equivalents | ​ | $ | 215,657 | ​ | $ | 215,657 | ​ | $ | 215,657 | ​ | $ | — | ​ | $ | —
Securities available for sale | ​ |  | 604,529 | ​ |  | 604,529 | ​ |  | — | ​ |  | 604,529 | ​ |  | —
FHLB stock | ​ |  | 13,975 | ​ |  | 13,975 | ​ |  | — | ​ |  | 13,975 | ​ |  | —
Net loans | ​ |  | 2,690,784 | ​ |  | 2,672,882 | ​ |  | — | ​ |  | — | ​ |  | 2,672,882
Accrued interest receivable | ​ |  | 3,171 | ​ |  | 3,171 | ​ |  | — | ​ |  | 3,171 | ​ |  | —
Cash surrender value of bank-owned life insurance policies | ​ |  | 77,388 | ​ |  | 77,388 | ​ |  | — | ​ |  | 77,388 | ​ |  | —
Derivative assets | ​ |  | 31,505 | ​ |  | 31,505 | ​ |  | — | ​ |  | 31,481 | ​ |  | 24
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Financial Liabilities | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Non-maturity deposits | ​ | $ | 2,121,406 | ​ | $ | 2,037,099 | ​ | $ | — | ​ | $ | 2,037,099 | ​ | $ | —
Time deposits | ​ | ​ | 813,509 | ​ | ​ | 805,783 | ​ | ​ | — | ​ | ​ | 805,783 | ​ | ​ | —
Securities sold under agreements to repurchase | ​ | ​ | 30,048 | ​ | ​ | 30,048 | ​ | ​ | — | ​ | ​ | 30,048 | ​ | ​ | —
FHLB advances | ​ |  | 224,282 | ​ |  | 229,413 | ​ |  | — | ​ |  | 229,413 | ​ |  | —
FRB PPPLF | ​ | ​ | 131,236 | ​ | ​ | 131,141 | ​ | ​ | — | ​ | ​ | 131,141 | ​ | ​ | —
Subordinated borrowings | ​ |  | 59,920 | ​ |  | 59,920 | ​ |  | — | ​ |  | 59,920 | ​ |  | —
Derivative liabilities | ​ |  | 34,958 | ​ |  | 34,958 | ​ |  | — | ​ |  | 34,871 | ​ |  | 87
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2019
​ | ​ | Carrying | ​ | Fair | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(in thousands) |  | Amount |  | Value |  | Level 1 |  | Level 2 |  | Level 3
Financial Assets |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Cash and cash equivalents | ​ | $ | 56,910 | ​ | $ | 56,910 | ​ | $ | 56,910 | ​ | $ | — | ​ | $ | —
Securities available for sale | ​ |  | 663,230 | ​ |  | 663,230 | ​ |  | — | ​ |  | 663,230 | ​ |  | —
FHLB stock | ​ |  | 20,679 | ​ |  | 20,679 | ​ |  | — | ​ |  | 20,679 | ​ |  | —
Net loans | ​ |  | 2,625,739 | ​ |  | 2,634,147 | ​ |  | — | ​ |  | — | ​ |  | 2,634,147
Accrued interest receivable | ​ |  | 3,294 | ​ |  | 3,294 | ​ |  | — | ​ |  | 3,294 | ​ |  | —
Cash surrender value of bank-owned life insurance policies | ​ |  | 75,863 | ​ |  | 75,863 | ​ |  | — | ​ |  | 75,863 | ​ |  | —
Derivative assets | ​ |  | 6,850 | ​ |  | 6,850 | ​ |  | — | ​ |  | 6,791 | ​ |  | 59
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Financial Liabilities | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Non-maturity deposits | ​ | $ | 1,763,116 | ​ | $ | 1,751,481 | ​ | $ | — | ​ | $ | 1,751,481 | ​ | $ | —
Time deposits | ​ | ​ | 932,635 | ​ | ​ | 932,886 | ​ | ​ | — | ​ | ​ | 932,886 | ​ | ​ | —
Short-term other borrowings | ​ |  | 44,832 | ​ |  | 44,831 | ​ |  | — | ​ |  | 44,831 | ​ |  | —
FHLB advances | ​ |  | 426,564 | ​ |  | 425,989 | ​ |  | — | ​ |  | 425,989 | ​ |  | —
Subordinated borrowings | ​ |  | 59,920 | ​ |  | 59,920 | ​ |  | — | ​ |  | 59,920 | ​ |  | —
Derivative liabilities | ​ |  | 8,186 | ​ |  | 8,186 | ​ |  | — | ​ |  | 8,102 | ​ |  | 84

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- Definition Tabular disclosure of assets and liabilities by class, including financial instruments measured at fair value that are classified in shareholders' equity, if any, that are measured at fair value on a nonrecurring basis in periods after initial recognition (for example, impaired assets). Disclosures may include, but are not limited to: (a) the fair value measurements recorded and the reasons for the measurements and (b) the level within the fair value hierarchy in which the fair value measurements are categorized in their entirety (levels 1, 2, 3). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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