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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

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