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CONSUMER LOANS - Impaired and general reserve for allowance for loan losses (Details) - USD ($) $ in Thousands | Jun. 30, 2021 | Mar. 31, 2021 | Dec. 31, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019
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CONSUMER LOANS |  |  |  |  |  |
Total consumer loans receivable | $ 119,506 |  | $ 115,639 |  |  |
Allowance for loan losses | 814 | $ 927 | 905 | $ 916 | $ 1,020 | $ 913
Impaired loans individually evaluated for impairment | 1,368 |  | 1,603 |  |  |
Specific reserve against impaired loans | 443 |  | 558 |  |  |
Other loans collectively evaluated for allowance | 118,138 |  | 114,036 |  |  |
General allowance for loan losses | 371 |  | 347 |  |  |
Principal outstanding on consumer loans | $ 1,368 |  | $ 1,603 |  |  |

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- Definition The balance of financing receivables that were collectively evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 + Details
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- Definition The balance of financing receivables that were individually evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 + Details
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