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FAIR VALUE MEASUREMENTS - Significant Unobservable Inputs for Recurring Assets (Details) - Level 3 - Recurring - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2016
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |  |
Assets measured on recurring basis | $ 18,865 | $ 15,229 |
Trading Security |  |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |  |
Assets measured on recurring basis | $ 13,229 | $ 14,189 |
Trading Security | Discounted Cash Flow |  |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |  |
Discount Rate (percent) | 2.62% | 2.49% |
Securities Available for Sale |  |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |  |
Assets measured on recurring basis |  | $ 708 |
Securities Available for Sale | Pricing Model |  |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |  |
Median Peer Price/ Tangible Book Value Percentage Multiple (percent) |  | 88.52% |
Forward Commitments |  |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |  |
Assets measured on recurring basis | $ 100 | $ 9 |
Forward Commitments | Pricing Model |  |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |  |
Origination Costs, per loan | $ 3,692 | $ 2,500 |
Forward Commitments | Historical Trend |  |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |  |
Closing Ratio (percent) | 80.36% | 92.57% |
Commitments to lend |  |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |  |
Assets measured on recurring basis | $ 4,738 | $ 323 |
Commitments to lend | Pricing Model |  |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |  |
Origination Costs, per loan | $ 3,692 | $ 2,500 |
Commitments to lend | Historical Trend |  |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |  |
Closing Ratio (percent) | 80.36% | 92.57% |
Capitalized servicing rights |  |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |  |
Assets measured on recurring basis |  |  | $ 798
Capitalized servicing rights | Discounted Cash Flow |  |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |  |
Discount Rate (percent) | 11.00% |  |
Constant prepayment rate (percent) | 10.40% |  |

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- Definition Fair Value Inputs, Median Peer Price and Tangible Book Value Percentage Multiple + References No definition available. + Details
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- Definition Represents the origination costs used as an input to measure fair value. + References No definition available. + Details
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- Definition This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a recurring basis by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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- Definition Rate at which loans or a loan portfolio are expected to prepay principal balances, used as an input to measure fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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