FAIR VALUE (Fair Value Measurements By Level 3 Valuation Technique) (Details) | Dec. 31, 2019USD ($) | Dec. 31, 2018USD ($) |
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] | | |
Investments in debt securities | $ 31,365,000 | $ 97,190,000 |
Available-for-sale, Multifamily Tax-exempt , Performing Bonds [Member] | Measurement Input, Discount Rate [Member] | | |
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] | | |
Fair Value | | 48,221,000 |
Available-for-sale, Multifamily Tax-exempt , Non-performing Bonds [Member] | | |
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] | | |
Investments in debt securities | | $ 13,500,000 |
Debt Securities, Available-for-sale, Measurement Input | | 0.5 |
Available-for-sale, Multifamily Tax-exempt , Non-performing Bonds [Member] | Measurement Input, Discount Rate [Member] | | |
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] | | |
Fair Value | | $ 12,882,000 |
Debt Securities, Available-for-sale, Measurement Input | | 8.2 |
Available-for-sale, Multifamily Tax-exempt , Non-performing Bonds [Member] | Measurement Input, Cap Rate [Member] | | |
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] | | |
Debt Securities, Available-for-sale, Measurement Input | | 7 |
Available-for-sale, Multifamily Tax-exempt, Subordinated Cash Flow Bonds [Member] | | |
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] | | |
Fair Value | $ 6,026,000 | $ 11,114,000 |
Available-for-sale, Multifamily Tax-exempt, Subordinated Cash Flow Bonds [Member] | Measurement Input, Discount Rate [Member] | | |
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] | | |
Debt Securities, Available-for-sale, Measurement Input | 7.3 | |
Available-for-sale, Multifamily Tax-exempt, Subordinated Cash Flow Bonds [Member] | Measurement Input, Cap Rate [Member] | | |
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] | | |
Debt Securities, Available-for-sale, Measurement Input | 6.2 | |
Available-for-sale, Multifamily Tax-exempt, Subordinated Cash Flow Bonds [Member] | Measurement Input, NOI Annual Growth Rate [Member] | | |
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] | | |
Debt Securities, Available-for-sale, Measurement Input | 0.7 | |
Available-for-sale, Multifamily Tax-exempt, Subordinated Cash Flow Bonds [Member] | Measurement Input, Contract Price [Member] | | |
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] | | |
Investments in debt securities | $ 16,611,000 | |
Available-for-sale, Infrastructure Bonds [Member] | | |
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] | | |
Fair Value | $ 25,339,000 | $ 24,973,000 |
Available-for-sale, Infrastructure Bonds [Member] | Measurement Input, Discount Rate [Member] | | |
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] | | |
Debt Securities, Available-for-sale, Measurement Input | 7 | 7.2 |
Loans Held for Investment | | |
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] | | |
Fair Value | $ 500,000 | |
Loans Held for Investment | Measurement Input, Discount Rate [Member] | | |
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] | | |
Loans receivable, measurement input | 8 | |
Total Return Swap [Member] | Measurement Input, Discount Rate [Member] | | |
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] | | |
Fair Value | | $ 1,130,000 |
Minimum [Member] | Available-for-sale, Multifamily Tax-exempt , Performing Bonds [Member] | Measurement Input, Discount Rate [Member] | | |
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] | | |
Debt Securities, Available-for-sale, Measurement Input | | 4.4 |
Minimum [Member] | Available-for-sale, Multifamily Tax-exempt, Subordinated Cash Flow Bonds [Member] | Measurement Input, Discount Rate [Member] | | |
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] | | |
Debt Securities, Available-for-sale, Measurement Input | | 7.4 |
Minimum [Member] | Available-for-sale, Multifamily Tax-exempt, Subordinated Cash Flow Bonds [Member] | Measurement Input, Cap Rate [Member] | | |
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] | | |
Debt Securities, Available-for-sale, Measurement Input | | 6.2 |
Minimum [Member] | Available-for-sale, Multifamily Tax-exempt, Subordinated Cash Flow Bonds [Member] | Measurement Input, NOI Annual Growth Rate [Member] | | |
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] | | |
Debt Securities, Available-for-sale, Measurement Input | | 0.6 |
Minimum [Member] | Total Return Swap [Member] | | |
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] | | |
Derivative Asset, Measurement Input | | 4.7 |
Maximum [Member] | Available-for-sale, Multifamily Tax-exempt , Performing Bonds [Member] | Measurement Input, Discount Rate [Member] | | |
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] | | |
Debt Securities, Available-for-sale, Measurement Input | | 6.8 |
Maximum [Member] | Available-for-sale, Multifamily Tax-exempt, Subordinated Cash Flow Bonds [Member] | Measurement Input, Discount Rate [Member] | | |
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] | | |
Debt Securities, Available-for-sale, Measurement Input | | 7.6 |
Maximum [Member] | Available-for-sale, Multifamily Tax-exempt, Subordinated Cash Flow Bonds [Member] | Measurement Input, Cap Rate [Member] | | |
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] | | |
Debt Securities, Available-for-sale, Measurement Input | | 6.5 |
Maximum [Member] | Available-for-sale, Multifamily Tax-exempt, Subordinated Cash Flow Bonds [Member] | Measurement Input, NOI Annual Growth Rate [Member] | | |
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] | | |
Debt Securities, Available-for-sale, Measurement Input | | 0.7 |
Maximum [Member] | Total Return Swap [Member] | | |
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] | | |
Derivative Asset, Measurement Input | | 4.8 |
Weighted Average [Member] | Available-for-sale, Multifamily Tax-exempt , Performing Bonds [Member] | Measurement Input, Discount Rate [Member] | | |
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] | | |
Debt Securities, Available-for-sale, Measurement Input | | 4.8 |
Weighted Average [Member] | Available-for-sale, Multifamily Tax-exempt, Subordinated Cash Flow Bonds [Member] | Measurement Input, Discount Rate [Member] | | |
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] | | |
Debt Securities, Available-for-sale, Measurement Input | | 7.5 |
Weighted Average [Member] | Available-for-sale, Multifamily Tax-exempt, Subordinated Cash Flow Bonds [Member] | Measurement Input, Cap Rate [Member] | | |
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] | | |
Debt Securities, Available-for-sale, Measurement Input | | 6.4 |
Weighted Average [Member] | Available-for-sale, Multifamily Tax-exempt, Subordinated Cash Flow Bonds [Member] | Measurement Input, NOI Annual Growth Rate [Member] | | |
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] | | |
Debt Securities, Available-for-sale, Measurement Input | | 0.7 |
Weighted Average [Member] | Loans Held for Investment | Measurement Input, Discount Rate [Member] | | |
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] | | |
Loans receivable, measurement input | 8 | |
Weighted Average [Member] | Total Return Swap [Member] | Measurement Input, Discount Rate [Member] | | |
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] | | |
Derivative Asset, Measurement Input | | 4.8 |