LOANS RECEIVABLE AND REVENUE - Delinquent Loans, Credit Services Organization - Aging Analysis (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable Guaranteed by the Company	$ 37,093	$ 44,105
Consumer Portfolio Segment | Delinquent loans receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable Guaranteed by the Company	6,454	6,234
Consumer Portfolio Segment | 0-30 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable Guaranteed by the Company	5,662	5,538
Consumer Portfolio Segment | 31-60 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable Guaranteed by the Company	629	527
Consumer Portfolio Segment | 61 + days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable Guaranteed by the Company	163	169
Consumer Portfolio Segment | Unsecured Installment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable Guaranteed by the Company	36,340	43,175
Consumer Portfolio Segment | Unsecured Installment | Delinquent loans receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable Guaranteed by the Company	6,359	6,079
Consumer Portfolio Segment | Unsecured Installment | 0-30 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable Guaranteed by the Company	5,574	5,435
Consumer Portfolio Segment | Unsecured Installment | 31-60 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable Guaranteed by the Company	625	490
Consumer Portfolio Segment | Unsecured Installment | 61 + days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable Guaranteed by the Company	160	154
Consumer Portfolio Segment | Secured Installment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable Guaranteed by the Company	753	930
Consumer Portfolio Segment | Secured Installment | Delinquent loans receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable Guaranteed by the Company	95	155
Consumer Portfolio Segment | Secured Installment | 0-30 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable Guaranteed by the Company	88	103
Consumer Portfolio Segment | Secured Installment | 31-60 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable Guaranteed by the Company	4	37
Consumer Portfolio Segment | Secured Installment | 61 + days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable Guaranteed by the Company	$ 3	$ 15