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LOANS RECEIVABLE, NET - Summary of changes in allowance for loan losses by class of loans (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Allowance for loan losses |  |  |
Beginning balance | $ 14,425 | $ 16,959 | $ 14,500
Charge-offs | (16) | (59) |
(Recovery of) provision for loan losses | 0 | 0 |
(Recovery of) provision for loan losses | (2,518) | 2,518 |
Total ending allowance balance | 14,425 | 16,959 |
Residential Portfolio Segment | Residential one-to-four family |  |  |
Allowance for loan losses |  |  |
Beginning balance | 2,822 | 3,579 | 3,446
Charge-offs | 0 | (49) |
(Recovery of) provision for loan losses | 0 | 0 |
(Recovery of) provision for loan losses | (757) | 182 |
Total ending allowance balance | 2,822 | 3,579 |
Residential Portfolio Segment | Multifamily |  |  |
Allowance for loan losses |  |  |
Beginning balance | 5,263 | 5,460 | 4,256
Charge-offs | 0 | 0 |
(Recovery of) provision for loan losses | 0 | 0 |
(Recovery of) provision for loan losses | (197) | 1,204 |
Total ending allowance balance | 5,263 | 5,460 |
Non-residential | Non-residential |  |  |
Allowance for loan losses |  |  |
Beginning balance | 2,846 | 3,244 | 2,548
Charge-offs | 0 | 0 |
(Recovery of) provision for loan losses | 0 | 0 |
(Recovery of) provision for loan losses | (398) | 696 |
Total ending allowance balance | 2,846 | 3,244 |
Construction and land | Construction and land |  |  |
Allowance for loan losses |  |  |
Beginning balance | 2,678 | 3,655 | 3,028
Charge-offs | 0 | 0 |
(Recovery of) provision for loan losses | 0 | 0 |
(Recovery of) provision for loan losses | (977) | 627 |
Total ending allowance balance | 2,678 | 3,655 |
Junior liens | Junior liens |  |  |
Allowance for loan losses |  |  |
Beginning balance | 636 | 916 | 1,002
Charge-offs | 0 | 0 |
(Recovery of) provision for loan losses | 0 | 0 |
(Recovery of) provision for loan losses | (280) | (86) |
Total ending allowance balance | 636 | 916 |
Commercial and industrial (including PPP) | Commercial and industrial (including PPP) |  |  |
Allowance for loan losses |  |  |
Beginning balance | 51 | 2 | 0
Charge-offs | 0 | 0 |
(Recovery of) provision for loan losses | 0 | 0 |
(Recovery of) provision for loan losses | 49 | 2 |
Total ending allowance balance | 51 | 2 |
Consumer and other | Consumer and other |  |  |
Allowance for loan losses |  |  |
Beginning balance | 38 | 48 | 56
Charge-offs | (16) | (10) |
(Recovery of) provision for loan losses | 0 | 0 |
(Recovery of) provision for loan losses | 6 | 2 |
Total ending allowance balance | 38 | 48 |
Unallocated Financing Receivables |  |  |
Allowance for loan losses |  |  |
Beginning balance | 91 | 55 | $ 164
Charge-offs | 0 | 0 |
(Recovery of) provision for loan losses | 0 | 0 |
(Recovery of) provision for loan losses | 36 | (109) |
Total ending allowance balance | $ 91 | $ 55 |

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