LOANS - TDRs by portfolio - restructured and subsequently defaulted (Details) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2017 USD ($) loan	Jun. 30, 2016 USD ($) loan	Jun. 30, 2017 USD ($) loan	Jun. 30, 2016 USD ($) loan
Troubled debt restructurings:
Number of loans \| loan	2	4	3	4
Pre-modification outstanding balance	$ 384	$ 690	$ 746	$ 690
Post-modification outstanding balance	$ 384	$ 690	$ 723	$ 690
Commercial \| Commercial loan portfolio
Troubled debt restructurings:
Number of loans \| loan		3	1	3
Pre-modification outstanding balance		$ 685	$ 362	$ 685
Post-modification outstanding balance		$ 685	$ 339	$ 685
Commercial real estate \| Commercial loan portfolio
Troubled debt restructurings:
Number of loans \| loan		1		1
Pre-modification outstanding balance		$ 5		$ 5
Post-modification outstanding balance		$ 5		$ 5
Residential real estate \| Other loan portfolio
Troubled debt restructurings:
Number of loans \| loan	2		2
Pre-modification outstanding balance	$ 384		$ 384
Post-modification outstanding balance	$ 384		$ 384

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953676-111524

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