FAIR VALUE - RECURRING LEVEL 3 MEASUREMENTS (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016
Fair value inputs quantitative information
Aggregate fair value of consumer loan	$ 2,677	$ 2,198
Recurring basis
Fair value inputs quantitative information
Aggregate fair value of consumer loan	2,677	2,198
Recurring basis \| Fair Value, Inputs, Level 3
Fair value inputs quantitative information
Aggregate fair value of consumer loan	2,677	2,198
Consumer Loans Held For Sale
Fair value inputs quantitative information
Aggregate fair value of consumer loan	2,677	2,198
Consumer Loans Held For Sale \| Recurring basis \| Fair Value, Inputs, Level 3
Fair value inputs quantitative information
Aggregate fair value of consumer loan	$ 2,677	$ 2,198
Consumer Loans Held For Sale \| Contractual Terms \| Recurring basis \| Fair Value, Inputs, Level 3
Fair value inputs quantitative information
Net Premium (as a percent)	0.90%	0.90%
Discount rate (as a percent)	5.00%	5.00%
Private label mortgage backed security \| Recurring basis \| Fair Value, Inputs, Level 3
Fair value inputs quantitative information
Mortgage backed security fair value	$ 4,449	$ 4,777
Private label mortgage backed security \| Discounted cash flow \| Minimum \| Recurring basis \| Fair Value, Inputs, Level 3
Fair value inputs quantitative information
Constant prepayment rate (as a percent)	3.50%	2.00%
Probability of default (as a percent)	1.80%	3.00%
Loss severity (as a percent)	60.00%	60.00%
Private label mortgage backed security \| Discounted cash flow \| Maximum \| Recurring basis \| Fair Value, Inputs, Level 3
Fair value inputs quantitative information
Constant prepayment rate (as a percent)	6.50%	6.50%
Probability of default (as a percent)	8.00%	9.00%
Loss severity (as a percent)	85.00%	90.00%

Fair value portion of consumer loans held-for-sale.

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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.

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- Definition

Percentage above fair value that an investor seeking to acquire control of an entity will pay, 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

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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.

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- Definition

Loss, including interest and principal, incurred on a defaulted security, expressed as a percentage of the original principal balance, used as an input to measure fair value.

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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

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- Definition

Percentage of likelihood a loan will not be repaid and instead default, used as an input to measure fair value.

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- Definition

Fair value of securitized, pay-through debt securities collateralized by real estate mortgage loans classified as available-for-sale.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Mortgage-Backed Securities
-URI http://asc.fasb.org/extlink&oid=6517959

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