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Loans and the Allowance for Loan Losses (Tables) | 12 Months Ended
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Dec. 31, 2018
Receivables [Abstract] |
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] | The following table sets forth the composition of the Company’s loan portfolio segments, including net deferred fees, as of December 31, 2018 and December 31, 2017:
|  | 2018 |  |  | 2017 |
|  | (dollars in thousands) |
Commercial |  | $ | 988,758 |  |  | $ | 824,082 |
Commercial real estate |  |  | 2,778,167 |  |  |  | 2,592,909 |
Commercial construction |  |  | 465,389 |  |  |  | 483,216 |
Residential real estate |  |  | 309,991 |  |  |  | 271,795 |
Consumer |  |  | 2,594 |  |  |  | 2,808 |
Gross loans |  |  | 4,544,899 |  |  |  | 4,174,810 |
Net deferred fees |  |  | (3,807) |  |  |  | (3,354) |
Loans receivable |  | $ | 4,541,092 |  |  | $ | 4,171,456 |
Loans held for sale [Table Text Block] | The following table presents loans held-for-sale by loan segment as of December 31, 2018 and December 31, 2017:
|  | 2018 |  |  | 2017 |
|  | (dollars in thousands) |
Commercial |  | $ | - |  |  | $ | - |
Commercial real estate |  |  | - |  |  |  | 24,475 |
Residential mortgage loans |  |  | - |  |  |  | 370 |
Total carrying amount |  | $ | - |  |  | $ | 24,845 |
Loans and Leases Receivable Purchase Credit Impaired Loans [Table Text Block] | The carrying amount of those loans is as follows as of December 31, 2018 and December 31, 2017.
|  | 2018 |  |  | 2017 |
|  | (dollars in thousands) |
Commercial |  | $ | 2,509 |  |  | $ | 2,683 |
Loans and Leases Receivable Purchased Loans [Table Text Block] | The accretable yield, or income expected to be collected, on the purchased credit-impaired loans above is as follows as of December 31, 2018 and December 31, 2017.
|  | 2018 |  |  | 2017 |
|  | (dollars in thousands) |
Balance at January 1, |  | $ | 1,387 |  |  | $ | 2,860 |
Accretion of income |  |  | (253) |  |  |  | (1,473) |
Balance at December 31, |  | $ | 1,134 |  |  | $ | 1,387 |
Schedule of Financing Receivables, Non Accrual Status [Table Text Block] | The following tables present nonaccrual loans included in loans receivable by loan class as of December 31, 2018 and December 31, 2017:
|  | 2018 |  |  | 2017 |
|  | (dollars in thousands) |
Commercial |  | $ | 29,340 |  |  | $ | 47,363 |
Commercial real estate |  |  | 15,135 |  |  |  | 12,757 |
Commercial construction |  |  | 2,934 |  |  |  | - |
Residential real estate |  |  | 4,446 |  |  |  | 5,493 |
Total loans receivable on nonaccrual status |  | $ | 51,855 |  |  | $ | 65,613 |
Financing Receivable Credit Quality Indicators [Table Text Block] | The following table presents information about the loan credit quality by loan class of gross loans (which exclude net deferred fees) at December 31, 2018 and 2017:
|  | December 31, 2018 |
|  | Pass |  |  | Special Mention |  |  | Substandard |  |  | Doubtful |  |  | Total |
|  | (dollars in thousands) |
Commercial |  | $ | 951,610 |  |  | $ | 3,371 |  |  | $ | 33,777 |  |  | $ | - |  |  | $ | 988,758 |
Commercial real estate |  |  | 2,742,989 |  |  |  | 12,574 |  |  |  | 22,604 |  |  |  | - |  |  |  | 2,778,167 |
Commercial construction |  |  | 453,598 |  |  |  | 5,515 |  |  |  | 6,276 |  |  |  | - |  |  |  | 465,389 |
Residential real estate |  |  | 305,414 |  |  |  | - |  |  |  | 4,577 |  |  |  | - |  |  |  | 309,991 |
Consumer |  |  | 2,576 |  |  |  | - |  |  |  | 18 |  |  |  | - |  |  |  | 2,594 |
Gross loans |  | $ | 4,456,187 |  |  | $ | 21,460 |  |  | $ | 67,252 |  |  | $ | - |  |  | $ | 4,544,899 |
|  | December 31, 2017 |
|  | Pass |  |  | Special Mention |  |  | Substandard |  |  | Doubtful |  |  | Total |
|  | (dollars in thousands) |
Commercial |  | $ | 767,020 |  |  | $ | 3,764 |  |  | $ | 53,298 |  |  | $ | - |  |  | $ | 824,082 |
Commercial real estate |  |  | 2,534,973 |  |  |  | 34,335 |  |  |  | 23,601 |  |  |  | - |  |  |  | 2,592,909 |
Commercial construction |  |  | 475,066 |  |  |  | 5,521 |  |  |  | 2,629 |  |  |  | - |  |  |  | 483,216 |
Residential real estate |  |  | 266,163 |  |  |  | - |  |  |  | 5,632 |  |  |  | - |  |  |  | 271,795 |
Consumer |  |  | 2,767 |  |  |  | - |  |  |  | 41 |  |  |  | - |  |  |  | 2,808 |
Gross loans |  | $ | 4,045,989 |  |  | $ | 43,620 |  |  | $ | 85,201 |  |  | $ | - |  |  | $ | 4,174,810 |
Impaired Financing Receivables [Table Text Block] | The following table provides an analysis of the impaired loans by class as of and for the years ended at December 31, 2018, 2017 and 2016.
|  | December 31, 2018 |
No Related Allowance Recorded |  | Recorded Investment |  |  | Unpaid Principal Balance |  |  | Related Allowance |  |  | Average Recorded Investment |  |  | Interest Income Recognized |
|  | (dollars in thousands) |
Commercial |  | $ | 29,896 |  |  | $ | 83,596 |  |  |  |  |  |  | $ | 31,721 |  |  | $ | 66 |
Commercial real estate |  |  | 16,839 |  |  |  | 17,935 |  |  |  |  |  |  |  | 17,676 |  |  |  | 149 |
Commercial construction |  |  | 9,240 |  |  |  | 9,240 |  |  |  |  |  |  |  | 11,215 |  |  |  | 493 |
Residential real estate |  |  | 2,209 |  |  |  | 2,521 |  |  |  |  |  |  |  | 2,284 |  |  |  | - |
Consumer |  |  | - |  |  |  | - |  |  |  |  |  |  |  | - |  |  |  | - |
Total |  | $ | 58,184 |  |  | $ | 113,292 |  |  |  |  |  |  | $ | 62,896 |  |  | $ | 708 |
With An Allowance Recorded |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial real estate |  | $ | 1,488 |  |  |  | 1,488 |  |  |  | 7 |  |  |  | 1,511 |  |  |  | 46 |
Residential real estate |  |  | 260 |  |  |  | 266 |  |  |  | 29 |  |  |  | 265 |  |  |  | - |
Total |  | $ | 1,748 |  |  | $ | 1,754 |  |  |  | 36 |  |  | $ | 1,776 |  |  | $ | 46 |
Total |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial |  | $ | 29,896 |  |  | $ | 83,596 |  |  | $ | - |  |  | $ | 31,721 |  |  | $ | 66 |
Commercial real estate |  |  | 18,327 |  |  |  | 19,423 |  |  |  | 7 |  |  |  | 19,187 |  |  |  | 195 |
Commercial construction |  |  | 9,240 |  |  |  | 9,240 |  |  |  | - |  |  |  | 11,215 |  |  |  | 493 |
Residential real estate |  |  | 2,469 |  |  |  | 2,787 |  |  |  | 29 |  |  |  | 2,549 |  |  |  | - |
Consumer |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Total (including related allowance) |  | $ | 59,932 |  |  | $ | 115,046 |  |  | $ | 36 |  |  | $ | 64,672 |  |  | $ | 754 |
|  | December 31, 2017 |
No Related Allowance Recorded |  | Recorded Investment |  |  | Unpaid Principal Balance |  |  | Related Allowance |  |  | Average Recorded Investment |  |  | Interest Income Recognized |
|  | (dollars in thousands) |
Commercial |  | $ | 49,761 |  |  | $ | 101,066 |  |  |  |  |  |  | $ | 10,552 |  |  | $ | 161 |
Commercial real estate |  |  | 23,905 |  |  |  | 23,976 |  |  |  |  |  |  |  | 24,099 |  |  |  | 585 |
Commercial construction |  |  | 6,662 |  |  |  | 6,662 |  |  |  |  |  |  |  | 5,509 |  |  |  | 322 |
Residential real estate |  |  | 3,203 |  |  |  | 3,442 |  |  |  |  |  |  |  | 3,255 |  |  |  | - |
Consumer |  |  | - |  |  |  | - |  |  |  |  |  |  |  | - |  |  |  | - |
Total |  | $ | 83,531 |  |  | $ | 135,146 |  |  |  |  |  |  | $ | 43,415 |  |  | $ | 1,068 |
With An Allowance Recorded |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial real estate |  | $ | 1,133 |  |  | $ | 1,133 |  |  | $ | 39 |  |  | $ | 1,152 |  |  | $ | 51 |
Total |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial |  | $ | 49,761 |  |  | $ | 101,066 |  |  | $ | - |  |  | $ | 10,765 |  |  | $ | 161 |
Commercial real estate |  |  | 25,038 |  |  |  | 25,109 |  |  |  | 39 |  |  |  | 25,251 |  |  |  | 636 |
Commercial construction |  |  | 6,662 |  |  |  | 6,662 |  |  |  | - |  |  |  | 5,509 |  |  |  | 322 |
Residential real estate |  |  | 3,203 |  |  |  | 3,442 |  |  |  | - |  |  |  | 3,255 |  |  |  | - |
Consumer |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Total (including related allowance) |  | $ | 84,664 |  |  | $ | 136,279 |  |  | $ | 39 |  |  | $ | 44,567 |  |  | $ | 1,119 |
|  | December 31, 2016 |
No Related Allowance Recorded |  | Recorded Investment |  |  | Unpaid Principal Balance |  |  | Related Allowance |  |  | Average Recorded Investment |  |  | Interest Income Recognized |
|  | (dollars in thousands) |
Commercial |  | $ | 3,637 |  |  | $ | 4,063 |  |  |  |  |  |  | $ | 4,052 |  |  | $ | 64 |
Commercial real estate |  |  | 18,288 |  |  |  | 18,288 |  |  |  |  |  |  |  | 18,532 |  |  |  | 250 |
Commercial construction |  |  | 5,909 |  |  |  | 5,909 |  |  |  |  |  |  |  | 5,308 |  |  |  | 79 |
Residential real estate |  |  | 1,851 |  |  |  | 2,055 |  |  |  |  |  |  |  | 1,908 |  |  |  | 19 |
Consumer |  |  | 62 |  |  |  | 62 |  |  |  |  |  |  |  | 72 |  |  |  | 4 |
Total |  | $ | 29,747 |  |  | $ | 30,377 |  |  |  |  |  |  | $ | 29,872 |  |  | $ | 416 |
With An Allowance Recorded |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial real estate |  | $ | 1,244 |  |  | $ | 1,244 |  |  | $ | 145 |  |  | $ | 1,274 |  |  | $ | - |
Total |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial |  | $ | 3,637 |  |  | $ | 4,063 |  |  | $ | - |  |  | $ | 4,052 |  |  | $ | 64 |
Commercial real estate |  |  | 19,532 |  |  |  | 19,532 |  |  |  | 145 |  |  |  | 19,806 |  |  |  | 250 |
Commercial construction |  |  | 5,909 |  |  |  | 5,909 |  |  |  | - |  |  |  | 5,308 |  |  |  | 79 |
Residential real estate |  |  | 1,851 |  |  |  | 2,055 |  |  |  | - |  |  |  | 1,908 |  |  |  | 19 |
Consumer |  |  | 62 |  |  |  | 62 |  |  |  | - |  |  |  | 72 |  |  |  | 4 |
Total (including related allowance) |  | $ | 30,991 |  |  | $ | 31,621 |  |  | $ | 145 |  |  | $ | 31,146 |  |  | $ | 416 |
Past Due Financing Receivables [Table Text Block] | The following table provides an analysis of the aging of the loans by class, excluding net deferred fees, that are past due at December 31, 2018 and December 31, 2017 (dollars in thousands):
|  | December 31, 2018 |
|  | 30-59 Days Past Due |  |  | 60-89 Days Past Due |  |  | 90 Days or Greater Past Due and Still Accruing |  |  | Nonaccrual |  |  | Total Past Due and Nonaccrual |  |  | Current |  |  | Total Loans Receivable |
Commercial |  | $ | 1,673 |  |  | $ | - |  |  | $ | 1,647 |  |  | $ | 29,340 |  |  | $ | 32,660 |  |  | $ | 956,098 |  |  | $ | 988,758 |
Commercial real estate |  |  | 6,162 |  |  |  | 1,840 |  |  |  | - |  |  |  | 15,135 |  |  |  | 23,137 |  |  |  | 2,755,030 |  |  |  | 2,778,167 |
Commercial construction |  |  | 2,496 |  |  |  | 564 |  |  |  | - |  |  |  | 2,934 |  |  |  | 5,994 |  |  |  | 459,395 |  |  |  | 465,389 |
Residential real estate |  |  | 3,455 |  |  |  | 119 |  |  |  | - |  |  |  | 4,446 |  |  |  | 8,020 |  |  |  | 301,971 |  |  |  | 309,991 |
Consumer |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 2,594 |  |  |  | 2,594 |
Total |  | $ | 13,786 |  |  | $ | 2,523 |  |  | $ | 1,647 |  |  | $ | 51,855 |  |  | $ | 69,811 |  |  | $ | 4,475,088 |  |  | $ | 4,544,899 |
The amount reported 90 days or greater past due and still accruing as of December 31, 2018 are comprised of PCI loans, net of their fair value marks, which are accreting income per their valuation at date of acquisition. There were no non-PCI loans 90 days or greater past due and still accruing as of December 31, 2018.
|  | December 31, 2017 |
|  | 30-59 Days Past Due |  |  | 60-89 Days Past Due |  |  | 90 Days or Greater Past Due and Still Accruing |  |  | Nonaccrual |  |  | Total Past Due and Nonaccrual |  |  | Current |  |  | Total Loans Receivable |
Commercial |  | $ | 1,708 |  |  | $ | 183 |  |  | $ | 1,664 |  |  | $ | 47,363 |  |  | $ | 50,918 |  |  | $ | 773,164 |  |  | $ | 824,082 |
Commercial real estate |  |  | 545 |  |  |  | 1,475 |  |  |  | - |  |  |  | 12,757 |  |  |  | 14,777 |  |  |  | 2,578,132 |  |  |  | 2,592,909 |
Commercial construction |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 483,216 |  |  |  | 483,216 |
Residential real estate |  |  | 1,578 |  |  |  | - |  |  |  | - |  |  |  | 5,493 |  |  |  | 7,071 |  |  |  | 264,724 |  |  |  | 271,795 |
Consumer |  |  | 18 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 18 |  |  |  | 2,790 |  |  |  | 2,808 |
Total |  | $ | 3,849 |  |  | $ | 1,658 |  |  | $ | 1,664 |  |  | $ | 65,613 |  |  | $ | 72,784 |  |  | $ | 4,102,026 |  |  | $ | 4,174,810 |
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 quality, and the related portion of the allowance for loan losses that are allocated to each loan portfolio segment:
|  | December 31, 2018 |
|  | Commercial |  |  | Commercial real estate |  |  | Commercial construction |  |  | Residential real estate |  |  | Consumer |  |  | Unallocated |  |  | Total |
|  | (dollars in thousands) |
Allowance for loan losses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Individually evaluated for impairment |  | $ | - |  |  | $ | 7 |  |  | $ | - |  |  | $ | 29 |  |  | $ | - |  |  | $ | - |  |  | $ | 36 |
Collectively evaluated for impairment |  |  | 9,675 |  |  |  | 17,840 |  |  |  | 4,519 |  |  |  | 1,237 |  |  |  | 2 |  |  |  | 445 |  |  |  | 33,718 |
Acquired portfolio |  |  | 200 |  |  |  | 1,000 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 1,200 |
Acquired with deteriorated credit quality |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Total |  | $ | 9,875 |  |  | $ | 18,847 |  |  | $ | 4,519 |  |  | $ | 1,266 |  |  | $ | 2 |  |  | $ | 445 |  |  | $ | 34,954 |
Gross loans |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Individually evaluated for impairment |  | $ | 29,896 |  |  | $ | 18,327 |  |  | $ | 9,240 |  |  | $ | 2,469 |  |  | $ | - |  |  |  |  |  |  | $ | 59,932 |
Collectively evaluated for impairment |  |  | 949,129 |  |  |  | 2,500,132 |  |  |  | 456,149 |  |  |  | 263,449 |  |  |  | 2,484 |  |  |  |  |  |  |  | 4,171,343 |
Acquired portfolio |  |  | 7,224 |  |  |  | 259,708 |  |  |  | - |  |  |  | 44,073 |  |  |  | 110 |  |  |  |  |  |  |  | 311,115 |
Acquired with deteriorated credit quality |  |  | 2,509 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  |  |  |  |  | 2,509 |
Total |  | $ | 988,758 |  |  | $ | 2,778,167 |  |  | $ | 465,389 |  |  | $ | 309,991 |  |  | $ | 2,594 |  |  |  |  |  |  | $ | 4,544,899 |
|  | December 31, 2017 |
|  | Commercial |  |  | Commercial real estate |  |  | Commercial construction |  |  | Residential real estate |  |  | Consumer |  |  | Unallocated |  |  | Total |
|  | (dollars in thousands) |
Allowance for loan losses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Individually evaluated for impairment |  | $ | - |  |  | $ | 39 |  |  | $ | - |  |  | $ | - |  |  | $ | - |  |  | $ | - |  |  | $ | 39 |
Collectively evaluated for impairment |  |  | 8,032 |  |  |  | 15,472 |  |  |  | 4,747 |  |  |  | 1,051 |  |  |  | 2 |  |  |  | 605 |  |  |  | 29,909 |
Acquired portfolio |  |  | 200 |  |  |  | 1,600 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 1,800 |
Acquired with deteriorated credit quality |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Total |  | $ | 8,232 |  |  | $ | 17,111 |  |  | $ | 4,747 |  |  | $ | 1,051 |  |  | $ | 2 |  |  | $ | 605 |  |  | $ | 31,748 |
Gross loans |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Individually evaluated for impairment |  | $ | 49,761 |  |  | $ | 25,038 |  |  | $ | 6,662 |  |  | $ | 3,203 |  |  | $ | - |  |  |  |  |  |  | $ | 84,664 |
Collectively evaluated for impairment |  |  | 757,923 |  |  |  | 2,190,686 |  |  |  | 476,554 |  |  |  | 212,350 |  |  |  | 2,338 |  |  |  |  |  |  |  | 3,639,851 |
Acquired portfolio |  |  | 13,715 |  |  |  | 377,185 |  |  |  | - |  |  |  | 56,242 |  |  |  | 470 |  |  |  |  |  |  |  | 447,612 |
Acquired with deteriorated credit quality |  |  | 2,683 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  |  |  |  |  | 2,683 |
Total |  | $ | 824,082 |  |  | $ | 2,592,909 |  |  | $ | 483,216 |  |  | $ | 271,795 |  |  | $ | 2,808 |  |  |  |  |  |  | $ | 4,174,810 |
Allowance for Credit Losses on Financing Receivables [Table Text Block] | A summary of the activity in the allowance for loan losses by loan segment is as follows:
|  | Commercial |  |  | Commercial real estate |  |  | Commercial construction |  |  | Residential real estate |  |  | Consumer |  |  | Unallocated |  |  | Total |
|  | (dollars in thousands) |
Balance at January 1, 2018 |  | $ | 8,233 |  |  | $ | 17,112 |  |  | $ | 4,747 |  |  | $ | 1,050 |  |  | $ | 1 |  |  | $ | 605 |  |  | $ | 31,748 |
Loan charge-offs |  |  | (17,066) |  |  |  | (915) |  |  |  | - |  |  |  | (23) |  |  |  | (7) |  |  |  | - |  |  |  | (18,011) |
Recoveries |  |  | 109 |  |  |  | - |  |  |  | - |  |  |  | 2 |  |  |  | 6 |  |  |  | - |  |  |  | 117 |
Provision for loan losses |  |  | 18,599 |  |  |  | 2,650 |  |  |  | (228) |  |  |  | 237 |  |  |  | 2 |  |  |  | (160) |  |  |  | 21,100 |
Balance at December 31, 2018 |  | $ | 9,875 |  |  | $ | 18,847 |  |  | $ | 4,519 |  |  | $ | 1,266 |  |  | $ | 2 |  |  | $ | 445 |  |  | $ | 34,954 |
|  | Commercial |  |  | Commercial real estate |  |  | Commercial construction |  |  | Residential real estate |  |  | Consumer |  |  | Unallocated |  |  | Total |
|  | (dollars in thousands) |
Balance at January 1, 2017 |  | $ | 6,632 |  |  | $ | 12,583 |  |  | $ | 4,789 |  |  | $ | 958 |  |  | $ | 3 |  |  | $ | 779 |  |  | $ | 25,744 |
Loan charge-offs |  |  | (70) |  |  |  | (155) |  |  |  | - |  |  |  | - |  |  |  | (14) |  |  |  | - |  |  |  | (239) |
Recoveries |  |  | 178 |  |  |  | 51 |  |  |  | - |  |  |  | 12 |  |  |  | 2 |  |  |  | - |  |  |  | 243 |
Provision for loan losses |  |  | 1,493 |  |  |  | 4,633 |  |  |  | (42) |  |  |  | 80 |  |  |  | 10 |  |  |  | (174) |  |  |  | 6,000 |
Balance at December 31, 2017 |  | $ | 8,233 |  |  | $ | 17,112 |  |  | $ | 4,747 |  |  | $ | 1,050 |  |  | $ | 1 |  |  | $ | 605 |  |  | $ | 31,748 |
|  | Commercial |  |  | Commercial real estate |  |  | Commercial construction |  |  | Residential real estate |  |  | Consumer |  |  | Unallocated |  |  | Total |
|  | (dollars in thousands) |
Balance at January 1, 2016 |  | $ | 10,949 |  |  | $ | 10,926 |  |  | $ | 3,253 |  |  | $ | 976 |  |  | $ | 4 |  |  | $ | 464 |  |  | $ | 26,572 |
Loan charge-offs |  |  | (39,343) |  |  |  | (107) |  |  |  | - |  |  |  | (94) |  |  |  | (29) |  |  |  | - |  |  |  | (39,573) |
Recoveries |  |  | 4 |  |  |  | 35 |  |  |  | - |  |  |  | 3 |  |  |  | 3 |  |  |  | - |  |  |  | 45 |
Provision for loan losses |  |  | 35,022 |  |  |  | 1,729 |  |  |  | 1,536 |  |  |  | 73 |  |  |  | 25 |  |  |  | 315 |  |  |  | 38,700 |
Balance at December 31, 2016 |  | $ | 6,632 |  |  | $ | 12,583 |  |  | $ | 4,789 |  |  | $ | 958 |  |  | $ | 3 |  |  | $ | 779 |  |  | $ | 25,744 |
Schedule of Debtor Troubled Debt Restructuring, Current Period [Table Text Block] | The following table presents loans by class modified as TDRs that occurred during the year ended December 31, 2018:
|  | Number of Loans |  |  | Pre-Modification Outstanding Recorded Investment |  |  | Post-Modification Outstanding Recorded Investment |
|  | (dollars in thousands)
TDRs |  |
Commercial |  |  | 32 |  |  | $ | 16,017 |  |  | $ | 16,017 |
Commercial real estate |  |  | 3 |  |  |  | 1,422 |  |  |  | 1,422 |
Commercial construction |  |  | 3 |  |  |  | 4,773 |  |  |  | 4,773 |
Residential real estate |  |  | 2 |  |  |  | 454 |  |  |  | 454 |
Total |  |  | 40 |  |  | $ | 22,666 |  |  | $ | 22,666 |
The following table presents loans by class modified as TDRs that occurred during the year ended December 31, 2017:
|  | Number of Loans |  |  | Pre-Modification Outstanding Recorded Investment |  |  | Post-Modification Outstanding Recorded Investment |
|  | (dollars in thousands) |
TDRs |  |  |  |  |  |  |  |  |  |  |  |
Commercial |  |  | 1 |  |  | $ | 692 |  |  | $ | 692 |
Commercial real estate |  |  | 2 |  |  |  | 3,007 |  |  |  | 3,007 |
Commercial construction |  |  | 2 |  |  |  | 6,662 |  |  |  | 6,662 |
Residential real estate |  |  | 1 |  |  |  | 17 |  |  |  | 17 |
Consumer |  |  | - |  |  |  | - |  |  |  | - |
Total |  |  | 6 |  |  | $ | 10,378 |  |  | $ | 10,378 |
The following table presents loans by class modified as TDRs that occurred during the year ended December 31, 2016:
|  | Number of Loans |  |  | Pre-Modification Outstanding Recorded Investment |  |  | Post-Modification Outstanding Recorded Investment |
|  | (dollars in thousands) |
TDRs |  |  |  |  |  |  |  |  |  |  |  |
Commercial |  |  | 19 |  |  | $ | 22,420 |  |  | $ | 22,420 |
Commercial real estate |  |  | 3 |  |  |  | 2,155 |  |  |  | 2,155 |
Commercial construction |  |  | 1 |  |  |  | 1,750 |  |  |  | 1,750 |
Residential real estate |  |  | - |  |  |  | - |  |  |  | - |
Consumer |  |  | - |  |  |  | - |  |  |  | - |
Total |  |  | 23 |  |  | $ | 26,325 |  |  | $ | 26,325 |

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