Portfolio Loans - Loans identified as impaired, segregated by category (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
Sep. 30, 2021	Dec. 31, 2020
Loans identified as impaired
Unpaid Contractual Principal Balance	$ 25,717	$ 30,342
Recorded Investment with No Allowance	12,138	15,850
Recorded Investment with Allowance	8,228	4,396
Total Recorded Investment	20,366	20,246
Related Allowance	4,475	1,625
Average Recorded Investment	20,819	25,299
Collateral dependent loans secured by real estate or business assets	15,500
Commercial Loans
Loans identified as impaired
Unpaid Contractual Principal Balance	14,233	16,771
Recorded Investment with No Allowance	2,003	4,001
Recorded Investment with Allowance	8,203	4,371
Total Recorded Investment	10,206	8,372
Related Allowance	4,450	1,600
Average Recorded Investment	8,945	7,920
Commercial Real Estate Loans
Loans identified as impaired
Unpaid Contractual Principal Balance	7,188	7,406
Recorded Investment with No Allowance	6,222	6,067
Total Recorded Investment	6,222	6,067
Average Recorded Investment	6,906	9,349
Real Estate Construction
Loans identified as impaired
Unpaid Contractual Principal Balance	276	292
Recorded Investment with No Allowance	276	292
Total Recorded Investment	276	292
Average Recorded Investment	338	581
Retail Real Estate
Loans identified as impaired
Unpaid Contractual Principal Balance	4,020	5,873
Recorded Investment with No Allowance	3,637	5,490
Recorded Investment with Allowance	25	25
Total Recorded Investment	3,662	5,515
Related Allowance	25	25
Average Recorded Investment	$ 4,630	7,439
Retail Other
Loans identified as impaired
Average Recorded Investment		$ 10

Represents collateral dependent loans secured by real estate or business assets.

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Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5212-111524

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5258-111524

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Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 14A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953550-111524

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Amount of allowance for credit losses related to recorded investment.

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Amount of unpaid principal balance of impaired financing receivables with related allowance for credit losses and without related allowance for credit losses.

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Amount of investment in impaired financing receivables for which there is no related allowance for credit losses.

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Amount of investment in impaired financing receivables for which there is a related allowance for credit losses.

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