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Portfolio loans - Past Due and Still Accruing or on a Non-accrual Status Loans (Details) - USD ($) $ in Thousands | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Loans past due |  |
Loans past due, still accruing |  | $ 1,601
90+Days | $ 356 |
Non-accrual Loans | 36,230 | 34,997
30 to 59 Days |  |
Loans past due |  |
Loans past due, still accruing | 7,069 | 5,053
60 to 89 Days |  |
Loans past due |  |
Loans past due, still accruing | 3,711 | 2,068
Commercial |  |
Loans past due |  |
Loans past due, still accruing |  | 775
90+Days | 72 |
Non-accrual Loans | 16,243 | 17,953
Commercial | 30 to 59 Days |  |
Loans past due |  |
Loans past due, still accruing | 410 | 158
Commercial | 60 to 89 Days |  |
Loans past due |  |
Loans past due, still accruing | 1,500 | 140
Commercial real estate |  |
Loans past due |  |
Non-accrual Loans | 9,761 | 10,298
Commercial real estate | 30 to 59 Days |  |
Loans past due |  |
Loans past due, still accruing | 1,662 | 148
Commercial real estate | 60 to 89 Days |  |
Loans past due |  |
Loans past due, still accruing | 595 | 558
Real estate construction |  |
Loans past due |  |
Loans past due, still accruing |  | 58
Non-accrual Loans | 1,126 | 18
Real estate construction | 30 to 59 Days |  |
Loans past due |  |
Loans past due, still accruing | 191 | 121
Retail real estate |  |
Loans past due |  |
Loans past due, still accruing |  | 766
90+Days | 284 |
Non-accrual Loans | 9,080 | 6,698
Retail real estate | 30 to 59 Days |  |
Loans past due |  |
Loans past due, still accruing | 4,442 | 4,578
Retail real estate | 60 to 89 Days |  |
Loans past due |  |
Loans past due, still accruing | 1,596 | 1,368
Retail other |  |
Loans past due |  |
Loans past due, still accruing |  | 2
Non-accrual Loans | 20 | 30
Retail other | 30 to 59 Days |  |
Loans past due |  |
Loans past due, still accruing | 364 | 48
Retail other | 60 to 89 Days |  |
Loans past due |  |
Loans past due, still accruing | $ 20 | $ 2

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- Definition Recorded investment in financing receivables that are 90 days or more past due and still accruing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5111-111524 + Details
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- Definition Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5111-111524 + Details
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