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Loans and the Allowance for Loan Losses (Tables) | 9 Months Ended
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Sep. 30, 2017
Receivables [Abstract] |
Loans held for sale [Table Text Block] | The following table presents loans held-for-sale by loan segment:
| September 30, |  | December 31,
| 2017 |  | 2016
| (dollars in thousands)
Commercial | $ | 47,430 |  | $ | 70,105
Commercial real estate |  | 41,811 |  |  | 7,712
Residential real estate |  | 145 |  |  | 188
Total carrying amount | $ | 89,386 |  | $ | 78,005
Activity in the valuation allowance [Table Text Block] | Activity in the valuation allowance was as follows for periods presented:
|  | Three Months |  | Three Months
|  | Ended |  | Ended
|  | September 30, |  | September 30,
|  | 2017 |  | 2016
|  | (dollars in thousands)
Balance at beginning of period |  | $ | 12,325 |  |  | $ | -
Reduction from loans paid off |  |  | (38 | ) |  |  |
Increase in valuation allowance |  |  | 3,000 |  |  |  | -
Balance at end of period |  | $ | 15,287 |  |  | $ | -
|  | Nine Months |  | Nine Months
|  | Ended |  | Ended
|  | September 30, |  | September 30,
|  | 2017 |  | 2016
|  | (dollars in thousands)
Balance at beginning of period |  | $ | - |  |  | $ | -
Reduction from loans paid off |  |  | (38 | ) |  |  |
Increase in valuation allowance |  |  | 15,325 |  |  |  | -
Balance at end of period |  | $ | 15,287 |  |  | $ | -
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] | The following table sets forth the composition of the Company’s loan portfolio, including net deferred loan fees, at September 30, 2017 and December 31, 2016:
|  | September 30, |  | December 31, |
|  | 2017 |  | 2016
|  | (dollars in thousands)
Commercial |  | $ | 641,613 |  |  | $ | 553,576 |
Commercial real estate |  |  | 2,585,205 |  |  |  | 2,204,710 |
Commercial construction |  |  | 399,453 |  |  |  | 486,228 |
Residential real estate |  |  | 264,244 |  |  |  | 232,547 |
Consumer |  |  | 1,912 |  |  |  | 2,380 |
Gross loans |  |  | 3,892,427 |  |  |  | 3,479,441 |
Net deferred loan fees |  |  | (3,138 | ) |  |  | (3,609 | )
Total loans receivable |  | $ | 3,889,289 |  |  | $ | 3,475,832
Loans and Leases Receivable Purchase Credit Impaired Loans [Table Text Block] | The recorded investment of those loans is as follows at September 30, 2017 and December 31, 2016.
|  | September 30, |  | December 31,
|  | 2017 |  | 2016
|  | (dollars in thousands)
Commercial |  | $ | 5,243 |  | $ | 7,098
Commercial real estate |  |  | 232 |  |  | 982
Total carrying amount |  | $ | 5,475 |  | $ | 8,080
Loans and Leases Receivable Purchased Loans [Table Text Block] | The following tables presents the accretable yield, or income expected to be collected, on the purchased credit-impaired loans for the following periods:
|  | Three Months |  | Three Months
|  | Ended |  | Ended
|  | September 30, |  | September 30,
|  | 2017 |  | 2016
|  | (dollars in thousands)
Balance at beginning of period |  | $ | 2,496 |  |  | $ | 3,233 |
Accretion of income |  |  | (180 | ) |  |  | (185 | )
Balance at end of period |  | $ | 2,316 |  |  | $ | 3,048 |
|  | Nine Months |  | Nine Months
|  | Ended |  | Ended
|  | September 30, |  | September 30,
|  | 2017 |  | 2016
|  | (dollars in thousands)
Balance at beginning of period |  | $ | 2,860 |  |  | $ | 3,599 |
Accretion of income |  |  | (544 | ) |  |  | (551 | )
Balance at end of period |  | $ | 2,316 |  |  | $ | 3,048 |
Schedule of Financing Receivables, Non Accrual Status [Table Text Block] | The following tables presents nonaccrual loans included in loans receivable by loan segment as of the periods presented:
|  | September 30, |  | December 31,
|  | 2017 |  | 2016
|  | (dollars in thousands)
Commercial |  | $ | 951 |  | $ | 1,460
Commercial real estate |  |  | 8,369 |  |  | 1,081
Residential real estate |  |  | 4,435 |  |  | 3,193
Total loans receivable on nonaccrual status |  | $ | 13,755 |  | $ | 5,734
Financing Receivable Credit Quality Indicators [Table Text Block] | The following table presents information, excluding loans held-for-sale and net deferred loan fees, about the Company’s loan credit quality at September 30, 2017 and December 31, 2016:
|  | September 30, 2017
|  |  |  |  | Special |  |  |  |  |  |  |  |  |
|  | Pass |  | Mention |  | Substandard |  | Doubtful |  | Total
|  | (dollars in thousands)
Commercial |  | $ | 630,818 |  | $ | 3,882 |  | $ | 6,913 |  | $ | - |  | $ | 641,613
Commercial real estate |  |  | 2,535,005 |  |  | 30,875 |  |  | 19,325 |  |  | - |  |  | 2,585,205
Commercial construction |  |  | 393,625 |  |  | 3,239 |  |  | 2,589 |  |  | - |  |  | 399,453
Residential real estate |  |  | 264,244 |  |  | - |  |  | - |  |  | - |  |  | 264,244
Consumer |  |  | 1,912 |  |  | - |  |  | - |  |  | - |  |  | 1,912
Gross loans |  | $ | 3,825,604 |  | $ | 37,996 |  | $ | 28,827 |  | $ | - |  | $ | 3,892,427
|  | December 31, 2016
|  |  |  |  | Special |  |  |  |  |  |  |  |
|  | Pass |  | Mention |  | Substandard |  | Doubtful |  | Total
|  | (dollars in thousands)
Commercial |  | $ | 539,961 |  | $ | 3,255 |  | $ | 10,360 |  | $ | - |  | $ | 553,576
Commercial real estate |  |  | 2,154,343 |  |  | 31,173 |  |  | 19,194 |  |  | - |  |  | 2,204,710
Commercial construction |  |  | 480,319 |  |  | 3,388 |  |  | 2,521 |  |  | - |  |  | 486,228
Residential real estate |  |  | 228,990 |  |  | - |  |  | 3,557 |  |  | - |  |  | 232,547
Consumer |  |  | 2,318 |  |  | - |  |  | 62 |  |  | - |  |  | 2,380
Gross loans |  | $ | 3,405,931 |  | $ | 37,816 |  | $ | 35,694 |  | $ | - |  | $ | 3,479,441
Impaired Financing Receivables [Table Text Block] | The following table provides an analysis of the impaired loans by segment as of September 30, 2017 and December 31, 2016:
|  | September 30, 2017
|  |  |  |  | Unpaid |  |  |
|  | Recorded |  | Principal |  | Related
|  | Investment |  | Balance |  | Allowance
No related allowance recorded |  | (dollars in thousands)
Commercial |  | $ | 3,068 |  | $ | 3,073 |  |  |
Commercial real estate |  |  | 19,221 |  |  | 19,283 |  |  |
Commercial construction |  |  | 4,340 |  |  | 4,340 |  |  |
Residential real estate |  |  | 2,520 |  |  | 2,749 |  |  |
Consumer |  |  | 46 |  |  | 46 |  |  |
Total |  | $ | 29,195 |  | $ | 29,491 |  |  |
With an allowance recorded |  |  |  |  |  |  |  |  |
Commercial real estate |  | $ | 1,640 |  | $ | 2,052 |  | $ | 110
Total |  |  |  |  |  |  |  |  |
Commercial |  | $ | 3,068 |  | $ | 3,073 |  | $ | -
Commercial real estate |  |  | 20,861 |  |  | 21,335 |  |  | 110
Commercial construction |  |  | 4,340 |  |  | 4,340 |  |  | -
Residential real estate |  |  | 2,520 |  |  | 2,749 |  |  | -
Consumer |  |  | 46 |  |  | 46 |  |  | -
Total (including allowance) |  | $ | 30,835 |  | $ | 31,543 |  | $ | 110
|  | December 31, 2016
|  |  |  |  | Unpaid |  |  |
|  | Recorded |  | Principal |  | Related
|  | Investment |  | Balance |  | Allowance
No related allowance recorded |  | (dollars in thousands)
Commercial |  | $ | 3,637 |  | $ | 4,063 |  |  |
Commercial real estate |  |  | 18,288 |  |  | 18,288 |  |  |
Commercial construction |  |  | 5,909 |  |  | 5,909 |  |  |
Residential real estate |  |  | 1,851 |  |  | 2,055 |  |  |
Consumer |  |  | 62 |  |  | 62 |  |  |
Total |  | $ | 29,747 |  | $ | 30,377 |  |  |
With an allowance recorded |  |  |  |  |  |  |  |  |
Commercial real estate |  | $ | 1,244 |  | $ | 1,244 |  | $ | 145
Total |  |  |  |  |  |  |  |  |
Commercial |  | $ | 3,637 |  | $ | 4,063 |  | $ | -
Commercial real estate |  |  | 19,532 |  |  | 19,532 |  |  | 145
Commercial construction |  |  | 5,909 |  |  | 5,909 |  |  | -
Residential real estate |  |  | 1,851 |  |  | 2,055 |  |  | -
Consumer |  |  | 62 |  |  | 62 |  |  | -
Total (including allowance) |  | $ | 30,991 |  | $ | 31,621 |  | $ | 145
Schedule of Average Balance and Interest Income Recognized on Impaired Loans [Table Text Block] | The following table provides an analysis related to the average recorded investment and interest income recognized on impaired loans by segment as of and for the three and nine months ended September 30, 2017 and 2016:
|  | Three Months Ended September 30, |  | Nine Months Ended September 30,
|  | 2017 |  | 2016 |  | 2017 |  | 2016
|  | Average |  | Interest |  | Average |  | Interest |  | Average |  | Interest |  | Average |  | Interest
|  | Recorded |  | Income |  | Recorded |  | Income |  | Recorded |  | Income |  | Recorded |  | Income
|  | Investment |  | Recognized |  | Investment |  | Recognized |  | Investment |  | Recognized |  | Investment |  | Recognized
|  | (dollars in thousands)
Impaired loans (no allowance) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial |  | $ | 3,100 |  | $ | 34 |  | $ | 6,704 |  | $ | 66 |  | $ | 3,149 |  | $ | 115 |  | $ | 4,317 |  | $ | 86
Commercial real estate |  |  | 19,302 |  |  | 221 |  |  | 9,129 |  |  | 65 |  |  | 18,813 |  |  | 424 |  |  | 8,167 |  |  | 118
Commercial construction |  |  | 4,285 |  |  | 63 |  |  | 1,224 |  |  | 21 |  |  | 4,273 |  |  | 215 |  |  | 979 |  |  | 54
Residential real estate |  |  | 2,529 |  |  | 2 |  |  | 3,271 |  |  | 5 |  |  | 2,551 |  |  | 6 |  |  | 3,247 |  |  | 15
Consumer |  |  | 48 |  |  | 1 |  |  | 70 |  |  | 1 |  |  | 54 |  |  | 2 |  |  | 74 |  |  | 3
Total |  | $ | 29,264 |  | $ | 321 |  | $ | 20,398 |  | $ | 158 |  | $ | 28,840 |  | $ | 762 |  | $ | 16,784 |  | $ | 276
Impaired loans (allowance): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial |  | $ | - |  | $ | - |  | $ | 91,393 |  | $ | 925 |  | $ | - |  | $ | - |  | $ | 85,620 |  | $ | 2,447
Commercial real estate |  |  | 1,645 |  |  | 2 |  |  | 153 |  |  | - |  |  | 1,654 |  |  | 39 |  |  | 153 |  |  | -
Total |  | $ | 1,645 |  | $ | 2 |  | $ | 91,546 |  | $ | 925 |  | $ | 1,654 |  | $ | 39 |  | $ | 85,773 |  | $ | 2,447
Total impaired loans: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial |  | $ | 3,100 |  | $ | 34 |  | $ | 98,097 |  | $ | 991 |  | $ | 3,149 |  | $ | 115 |  | $ | 89,937 |  | $ | 2,533
Commercial real estate |  |  | 20,947 |  |  | 223 |  |  | 9,282 |  |  | 65 |  |  | 20,467 |  |  | 463 |  |  | 8,320 |  |  | 118
Commercial construction |  |  | 4,285 |  |  | 63 |  |  | 1,224 |  |  | 21 |  |  | 4,273 |  |  | 215 |  |  | 979 |  |  | 54
Residential mortgage |  |  | 2,259 |  |  | 2 |  |  | 3,271 |  |  | 5 |  |  | 2,551 |  |  | 6 |  |  | 3,247 |  |  | 15
Consumer |  |  | 48 |  |  | 1 |  |  | 70 |  |  | 1 |  |  | 54 |  |  | 2 |  |  | 74 |  |  | 3
Total |  | $ | 30,909 |  | $ | 323 |  | $ | 111,944 |  | $ | 1,083 |  | $ | 30,494 |  | $ | 801 |  | $ | 102,557 |  | $ | 2,723
Past Due Financing Receivables [Table Text Block] | The following table provides an analysis of the aging of gross loans (excluding loans held-for-sale) that are past due at September 30, 2017 and December 31, 2016 by segment: Aging Analysis
|  | September 30, 2017
|  |  |  |  |  |  |  | 90 Days or |  |  |  |  |  |  |  |  |  |  |  |
|  |  |  |  |  |  |  | Greater Past |  |  |  |  | Total Past |  |  |  |  |  |
|  | 30-59 Days |  | 60-89 Days |  | Due and Still |  |  |  |  | Due and |  |  |  |  |  |
|  | Past Due |  | Past Due |  | Accruing |  | Nonaccrual |  | Nonaccrual |  | Current |  | Gross Loans
|  | (dollars in thousands)
Commercial |  | $ | 199 |  | $ | 288 |  | $ | 4,209 |  | $ | 951 |  | $ | 5,647 |  | $ | 635,966 |  | $ | 641,613
Commercial real estate |  |  | 586 |  |  | 8,057 |  |  | - |  |  | 8,369 |  |  | 17,012 |  |  | 2,568,193 |  |  | 2,585,205
Commercial construction |  |  | - |  |  | - |  |  | - |  |  | - |  |  | - |  |  | 399,453 |  |  | 399,453
Residential real estate |  |  | 918 |  |  | 541 |  |  | - |  |  | 4,435 |  |  | 5,894 |  |  | 258,350 |  |  | 264,244
Consumer |  |  | - |  |  | 2 |  |  | - |  |  | - |  |  | 2 |  |  | 1,910 |  |  | 1,912
Total |  | $ | 1,703 |  | $ | 8,888 |  | $ | 4,209 |  | $ | 13,755 |  | $ | 28,555 |  | $ | 3,863,872 |  | $ | 3,892,427
|  | Dece mber 31, 2016
|  |  |  |  |  |  |  | 90 Days or |  |  |  |  |  |  |  |  |  |  |  |
|  |  |  |  |  |  |  | Greater Past |  |  |  |  | Total Past |  |  |  |  |  |
|  | 30-59 Days |  | 60-89 Days |  | Due and Still |  |  |  |  | Due and |  |  |  |  |  |
|  | Past Due |  | Past Due |  | Accruing |  | Nonaccrual |  | Nonaccrual |  | Current |  | Gross Loans
|  | (dollars in thousands)
Commercial |  | $ | 475 |  | $ | 18 |  | $ | 4,630 |  | $ | 1,460 |  | $ | 6,583 |  | $ | 546,993 |  | $ | 553,576
Commercial real estate |  |  | 4,928 |  |  | 1,584 |  |  | 663 |  |  | 1,081 |  |  | 8,256 |  |  | 2,196,454 |  |  | 2,204,710
Commercial construction |  |  | - |  |  | - |  |  | - |  |  | - |  |  | - |  |  | 486,228 |  |  | 486,228
Residential real estate |  |  | 2,131 |  |  | 388 |  |  | - |  |  | 3,193 |  |  | 5,712 |  |  | 223,835 |  |  | 232,547
Consumer |  |  | - |  |  | - |  |  | - |  |  | - |  |  | - |  |  | 2,380 |  |  | 2.380
Total |  | $ | 7,534 |  | $ | 1,990 |  | $ | 5,293 |  | $ | 5,734 |  | $ | 20,551 |  | $ | 3,458,890 |  | $ | 3,479,441
Schedule of Recorded Investment in Financing Receivables [Table Text Block] | The following tables detail, at the period-end presented, the amount of gross loans (excluding loans held-for-sale) that are evaluated individually, and collectively, for impairment, those acquired with deteriorated credit quality, and the related portion of the allowance for loan losses (“ALLL”) that are allocated to each loan portfolio segment:
|  | September 30, 2017
|  |  |  |  | Commercial |  | Commercial |  | Residential |  |  |  |  |  |  |  |  |
|  | Commercial |  | real estate |  | construction |  | real estate |  | Consumer |  | Unallocated |  | Total
|  | (dollars in thousands)
ALLL |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Individually evaluated for impairment |  | $ | - |  | $ | 110 |  | $ | - |  | $ | - |  | $ | - |  | $ | - |  | $ | 110
Collectively evaluated for impairment |  |  | 7,716 |  |  | 15,224 |  |  | 3,940 |  |  | 1,052 |  |  | 2 |  |  | 326 |  |  | 28,260
Acquired portfolio |  |  | - |  |  | 1,500 |  |  | - |  |  | - |  |  | - |  |  | - |  |  | 1,500
Acquired with deteriorated credit quality |  |  | - |  |  | - |  |  | - |  |  | - |  |  | - |  |  | - |  |  | -
Total ALLL |  | $ | 7,716 |  | $ | 16,834 |  | $ | 3,940 |  | $ | 1,052 |  | $ | 2 |  | $ | 326 |  | $ | 29,870
Gross loans |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Individually evaluated for impairment |  | $ | 3,068 |  | $ | 20,861 |  | $ | 4,340 |  | $ | 2,520 |  | $ | 46 |  |  |  |  | $ | 30,835
Collectively evaluated for impairment |  |  | 618,012 |  |  | 2,142,385 |  |  | 395,113 |  |  | 199,902 |  |  | 1,410 |  |  |  |  |  | 3,356,822
Acquired portfolio |  |  | 15,290 |  |  | 421,727 |  |  | - |  |  | 61,822 |  |  | 456 |  |  |  |  |  | 499,295
Acquired with deteriorated credit quality |  |  | 5,243 |  |  | 232 |  |  | - |  |  | - |  |  | - |  |  |  |  |  | 5,475
Total gross loans |  | $ | 641,613 |  | $ | 2,585,205 |  | $ | 399,453 |  | $ | 264,244 |  | $ | 1,912 |  |  |  |  | $ | 3,892,427
|  | December 31, 2016
|  |  |  |  | Commercial |  | Commercial |  | Residential |  |  |  |  |  |  |  |  |
|  | Commercial |  | real estate |  | construction |  | real estate |  | Consumer |  | Unallocated |  | Total
|  | (dollars in thousands)
ALLL |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Individually evaluated for impairment |  | $ | - |  | $ | 145 |  | $ | - |  | $ | - |  | $ | - |  | $ | - |  | $ | 145
Collectively evaluated for impairment |  |  | 6,632 |  |  | 12,438 |  |  | 4,789 |  |  | 958 |  |  | 3 |  |  | 779 |  |  | 25,599
Acquired portfolio |  |  | - |  |  | - |  |  | - |  |  | - |  |  | - |  |  | - |  |  | -
Acquired with deteriorated credit quality |  |  | - |  |  | - |  |  | - |  |  | - |  |  | - |  |  | - |  |  | -
Total ALLL |  | $ | 6,632 |  | $ | 12,583 |  | $ | 4,789 |  | $ | 958 |  | $ | 3 |  | $ | 779 |  | $ | 25,744
Gross loans |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Individually evaluated for impairment |  | $ | 3,637 |  | $ | 19,532 |  | $ | 5,909 |  | $ | 1,851 |  | $ | 62 |  |  |  |  | $ | 30,991
Collectively evaluated for impairment |  |  | 517,869 |  |  | 1,621,745 |  |  | 478,865 |  |  | 163,686 |  |  | 1,757 |  |  |  |  |  | 2,783,922
Acquired portfolio |  |  | 24,972 |  |  | 562,451 |  |  | 1,454 |  |  | 67,010 |  |  | 561 |  |  |  |  |  | 656,448
Acquired with deteriorated credit quality |  |  | 7,098 |  |  | 982 |  |  | - |  |  | - |  |  | - |  |  |  |  |  | 8,080
Total gross loans |  | $ | 553,576 |  | $ | 2,204,710 |  | $ | 486,228 |  | $ | 232,547 |  | $ | 2,380 |  |  |  |  | $ | 3,479,441
Allowance for Credit Losses on Financing Receivables [Table Text Block] | A summary of the activity in the ALLL is as follows:
|  | Three Months Ended September 30, 2017
|  |  |  |  |  | Commercial |  | Commercial |  | Residential |  |  |  |  |  |  |  |  |  |  |  |
|  | Commercial |  | real estate |  | construction |  | real estate |  | Consumer |  | Unallocated |  | Total
|  | (dollars in thousands)
Balance at June 30, 2017 |  | $ | 7,238 |  |  | $ | 15,389 |  |  | $ | 4,241 |  |  | $ | 985 |  |  | $ | 2 |  |  | $ | 546 |  |  | $ | 28,401 |
Charge-offs |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | (1 | ) |  |  | - |  |  |  | (1 | )
Recoveries |  |  | 17 |  |  |  | 2 |  |  |  | - |  |  |  | - |  |  |  | 1 |  |  |  | - |  |  |  | 20 |
Provision for loan losses |  |  | 461 |  |  |  | 1,443 |  |  |  | (301 | ) |  |  | 67 |  |  |  | - |  |  |  | (220 | ) |  |  | 1,450 |
Balance at September 30, 2017 |  | $ | 7,716 |  |  | $ | 16,834 |  |  | $ | 3,940 |  |  | $ | 1,052 |  |  | $ | 2 |  |  | $ | 326 |  |  | $ | 29,870 |
|  | Three Months Ended September 30, 2016
|  |  |  |  |  | Commercial |  | Commercial |  | Residential |  |  |  |  |  |  |  |  |  |  |
|  | Commercial |  | real estate |  | construction |  | real estate |  | Consumer |  | Unallocated |  | Total |
|  | (dollars in thousands)
Balance at June 30, 2016 |  | $ | 15,548 |  |  | $ | 11,371 |  |  | $ | 4,040 |  |  | $ | 1,091 |  |  | $ | 4 |  |  | $ | 709 |  |  | $ | 32,763 |
Charge-offs |  |  | (1,878 | ) |  |  | - |  |  |  | - |  |  |  | (27 | ) |  |  | (5 | ) |  |  | - |  |  |  | (1,910 | )
Recoveries |  |  | 1 |  |  |  | 10 |  |  |  | - |  |  |  | - |  |  |  | 1 |  |  |  | - |  |  |  | 12 |
Provision for loan losses |  |  | 6,725 |  |  |  | (6 | ) |  |  | 32 |  |  |  | 110 |  |  |  | 4 |  |  |  | (115 | ) |  |  | 6,750 |
Balance at September 30, 2016 |  | $ | 20,396 |  |  | $ | 11,375 |  |  | $ | 4,072 |  |  | $ | 1,174 |  |  | $ | 4 |  |  | $ | 594 |  |  | $ | 37,615 |
|  | Nine Months Ended September 30, 2017
|  |  |  |  |  | Commercial |  | Commercial |  | Residential |  |  |  |  |  |  |  |  |  |  |  |
|  | Commercial |  | real estate |  | construction |  | real estate |  | Consumer |  | Unallocated |  | Total
|  | (dollars in thousands)
Balance at December 31, 2016 |  | $ | 6,632 |  |  | $ | 12,583 |  |  | $ | 4,789 |  |  | $ | 958 |  |  | $ | 3 |  |  | $ | 779 |  |  | $ | 25,744 |
Charge-offs |  |  | - |  |  |  | (71 | ) |  |  | - |  |  |  | - |  |  |  | (12 | ) |  |  | - |  |  |  | (83 | )
Recoveries |  |  | 158 |  |  |  | 50 |  |  |  | - |  |  |  | - |  |  |  | 1 |  |  |  | - |  |  |  | 209 |
Provision for loan losses |  |  | 926 |  |  |  | 4,272 |  |  |  | (849 | ) |  |  | 94 |  |  |  | 10 |  |  |  | (453 | ) |  |  | 4,000 |
Balance at September 30, 2017 |  | $ | 7,716 |  |  | $ | 16,834 |  |  | $ | 3,940 |  |  | $ | 1,052 |  |  | $ | 2 |  |  | $ | 326 |  |  | $ | 29,870 |
|  | Nine Months Ended September 30, 2016
|  |  |  |  |  | Commercial |  | Commercial |  | Residential |  |  |  |  |  |  |  |  |  |  |  |
|  | Commercial |  | real estate |  | construction |  | real estate |  | Consumer |  | Unallocated |  | Total
|  | (dollars in thousands)
Balance at December 31, 2015 |  | $ | 10,949 |  |  | $ | 10,926 |  |  | $ | 3,253 |  |  | $ | 976 |  |  | $ | 4 |  |  | $ | 464 |  |  | $ | 26,572 |
Charge-offs |  |  | (2,396 | ) |  |  | - |  |  |  | - |  |  |  | (94 | ) |  |  | (10 | ) |  |  | - |  |  |  | (2,500 | )
Recoveries |  |  | 2 |  |  |  | 35 |  |  |  | - |  |  |  | 3 |  |  |  | 3 |  |  |  | - |  |  |  | 43 |
Provision for loan losses |  |  | 11,841 |  |  |  | 414 |  |  |  | 819 |  |  |  | 289 |  |  |  | 7 |  |  |  | 130 |  |  |  | 13,500 |
Balance at September 30, 2016 |  | $ | 20,396 |  |  | $ | 11,375 |  |  | $ | 4,072 |  |  | $ | 1,174 |  |  | $ | 4 |  |  | $ | 594 |  |  | $ | 37,615
Allowance for Loan and Lease Losses [Table Text Block] | The following table presents a rollforward of TDRs and the related changes to the allowance for loan losses (“ALLL”) that occurred for the periods presented:
|  | Nine Months Ended |  | Year Ended
|  | September 30, 2017 |  | December 31, 2016
|  | (dollars in thousands)
|  | Recorded |  |  |  |  | Recorded |  |  |  |
|  | Investment |  | ALLL |  | Investment |  | ALLL
Troubled Debt Restructurings |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | 13,818 |  |  | $ | - |  | $ | 86,629 |  |  | $ | 4,500 |
Additions |  |  | 5,668 |  |  |  | - |  |  | 26,325 |  |  |  | 8,250 |
Payoffs/paydowns |  |  | (1,309 | ) |  |  | - |  |  | (2,616 | ) |  |  | - |
Transfers |  |  | (580 | ) |  |  | - |  |  | (96,520 | ) |  |  | - |
Other |  |  | - |  |  |  | - |  |  | - |  |  |  | (12,750 | )
Ending balance |  | $ | 17,597 |  |  | $ | - |  | $ | 13,818 |  |  | $ | -
Schedule of Debtor Troubled Debt Restructuring, Current Period [Table Text Block] | The following table presents loans by class modified as troubled debt restructurings that occurred during the nine months ended September 30, 2016 (dollars in thousands):
|  |  |  | Pre-Modification |  | Post-Modification
|  |  |  | Outstanding |  | Outstanding
|  | Number of |  | Recorded |  | Recorded
|  | Loans |  | Investment |  | Investment
Troubled debt restructurings: |  |  |  |  |  |  |  |
Commercial |  | 16 |  | $ | 19,311 |  | $ | 19,311
Commercial real estate |  | 2 |  |  | 581 |  |  | 581
Commercial construction |  | - |  |  | - |  |  | -
Residential real estate |  | - |  |  | - |  |  | -
Consumer |  | - |  |  | - |  |  | -
Total |  | 18 |  | $ | 19,892 |  | $ | 19,892

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