BORROWINGS (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
Sep. 30, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Assets pledged as collateral to the Federal Home Loan Bank	$ 663,000	$ 746,000
Federal Home Loan Bank borrowings	15,000	165,000
Federal Home Loan Bank Borrowings Short-Term [Member]
Debt Instrument [Line Items]
Daily average outstanding	63,201	63,935
Total interest cost	$ 276	$ 252
Average interest rate paid	0.58%	0.39%
Maximum amount outstanding at any month-end	$ 160,000	$ 155,000
Ending balance	$ 0	$ 150,000
Federal Home Loan Bank Borrowings Short-Term [Member] \| Weighted Average [Member]
Debt Instrument [Line Items]
Weighted-average interest rate on balances outstanding	0.00%	0.52%
Federal Home Loan Bank Borrowings Long-Term [Member]
Debt Instrument [Line Items]
Daily average outstanding	$ 15,000	$ 10,808
Total interest cost	$ 198	$ 190
Average interest rate paid	1.76%	1.76%
Maximum amount outstanding at any month-end	$ 15,000	$ 15,000
Ending balance	$ 15,000	$ 15,000
Federal Home Loan Bank Borrowings Long-Term [Member] \| Weighted Average [Member]
Debt Instrument [Line Items]
Weighted-average interest rate on balances outstanding	1.76%	1.76%
Federal Funds Purchased [Member]
Debt Instrument [Line Items]
Daily average outstanding	$ 2	$ 3
Total interest cost	$ 0	$ 0
Average interest rate paid	0.74%	0.45%
Maximum amount outstanding at any month-end	$ 0	$ 0
Ending balance	$ 0	$ 0
Federal Funds Purchased [Member] \| Weighted Average [Member]
Debt Instrument [Line Items]
Weighted-average interest rate on balances outstanding	0.00%	0.00%

Amount of borrowings as of the balance sheet date from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and liquidity shortages.

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The calculated average balance outstanding for the year for all Federal Home Loan Bank advances as of the Balance Sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.13(3)(a))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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The calculated weighted average interest rate for Federal Home Loan Bank advances outstanding as of the Balance Sheet date.

+ References

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The maximum balance outstanding at any month end during the period as of the Balance Sheet date.

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Amount of the collateral pledged in support of federal home loan bank advances outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822

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-Section 50
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States the interest rate applicable to Federal Home Loan Bank advances outstanding as of the Balance Sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
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-Paragraph 3
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Including both current and noncurrent portions, Federal Home Loan Bank borrowings initially due beyond one year or beyond the normal operating cycle if longer.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 470
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Aggregate amount of interest expense on all borrowings.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 225
-Section S99
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