MORTGAGE OPERATIONS (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Key assumptions used in measuring the fair value of mortgage servicing rights [Abstract]
Constant prepayment rate	11.00%		12.67%
Discount rate	10.02%		10.02%
Weighted average life	6 years 4 days		5 years 6 months 4 days
Mortgages held-for-sale	$ 1,243		$ 3,326
Real estate mortgage loans serviced	231,811		231,310
Mortgage servicing rights assets [Roll Forward]
Beginning balance	1,815
Additions	68
Reductions	(85)
Ending balance	1,798		1,815
Valuation allowance [Roll Forward]
Beginning balance	(21)
Additions	0
Reductions	21
Ending balance	0		(21)
Mortgage servicing rights, net of valuation allowance [Roll Forward]
Beginning balance	1,794
Additions	68
Reductions	(64)
Ending balance	1,798
Fair value of mortgage servicing rights asset	1,918		$ 1,794
Contractually specified servicing fee	$ 146	$ 149

The balance represents the amount of loans serviced for others that are secured by real estate mortgages.

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The value of new servicing assets, subsequently measured at amortized value, acquired or created during the current period through purchases or from transfers of financial assets, net of valuation allowance.

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No definition available.

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Amortized carrying amount (balance) as of the balance sheet date of an asset representing net future revenues from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements, net of valuation allowance.

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No definition available.

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Amount of expense charged against earnings for the periodic recognition of servicing assets relative to estimated net servicing income, net of valuation allowance.

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No definition available.

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All amounts that, per contract, are due to the servicer in exchange for servicing the financial asset and would no longer be received by a servicer if the beneficial owners of the serviced assets (or their trustees or agents) were to exercise their actual or potential authority under the contract to shift the servicing to another servicer. Depending on the servicing contract, those fees may include some or all of the difference between the interest rate collected on the asset being serviced and the rate to be paid to the beneficial owners of the asset.

+ References

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-Publisher FASB
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- Definition

The face amount of loans that will be sold to other entities.

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Amortized amount of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.

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Amount of additions from purchases, assumption or transfer to contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.

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Amount conveyed to unrelated parties of contract to contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.

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Fair value of an asset representing net future revenue from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements.

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Discount rate used to estimate the fair value of servicing assets and servicing liabilities.

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Estimated rate of prepayments of principal on servicing assets and servicing liabilities.

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Weighted average life of financial assets and financial liabilities, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Reflects the estimated amount of impairment as of the balance sheet date of recognized servicing assets that are being amortized in proportion to and over the period of estimated net servicing income or loss.

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Amount of increase in the valuation allowance for impairment of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer from charges to expense.

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Amount of decrease in the valuation allowance for impairment of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer from recoveries recognized.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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