LOANS, IMPAIRED LOANS (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
With no related allowance recorded [Abstract]
Recorded Investment	$ 17,099	$ 18,357
Unpaid Principal Balance	18,961	21,061
Average Recorded Investment	18,744	20,918	$ 24,831
Interest Income Recognized	1,771	1,902	3,482
With an allowance recorded [Abstract]
Recorded Investment	3,550	5,810
Unpaid Principal Balance	3,574	6,066
Related Allowance	191	469
Average Recorded Investment	3,689	5,229	5,241
Interest Income Recognized	85	315	172
Total [Abstract]
Recorded Investment	20,649	24,167
Unpaid Principal Balance	22,535	27,127
Average Recorded Investment	22,433	26,147	30,072
Interest Income Recognized	1,856	2,217	3,654
Interest income recognized on a cash basis	28	51	96
Commercial & industrial
With no related allowance recorded [Abstract]
Recorded Investment	1,015	109
Unpaid Principal Balance	1,100	263
Average Recorded Investment	685	998	1,467
Interest Income Recognized	88	151	206
With an allowance recorded [Abstract]
Recorded Investment	296	326
Unpaid Principal Balance	301	326
Related Allowance	8	9
Average Recorded Investment	311	341	370
Interest Income Recognized	18	19	21
Total [Abstract]
Recorded Investment	1,311	435
Unpaid Principal Balance	1,401	589
Average Recorded Investment	996	1,339	1,837
Interest Income Recognized	106	170	227
Commercial, secured by real estate
With no related allowance recorded [Abstract]
Recorded Investment	12,677	14,195
Unpaid Principal Balance	13,608	15,522
Average Recorded Investment	14,113	15,274	18,575
Interest Income Recognized	1,068	1,140	2,229
With an allowance recorded [Abstract]
Recorded Investment	2,660	4,690
Unpaid Principal Balance	2,660	4,946
Related Allowance	146	347
Average Recorded Investment	2,739	4,194	4,007
Interest Income Recognized	45	257	114
Total [Abstract]
Recorded Investment	15,337	18,885
Unpaid Principal Balance	16,268	20,468
Average Recorded Investment	16,852	19,468	22,582
Interest Income Recognized	1,113	1,397	2,343
Residential real estate
With no related allowance recorded [Abstract]
Recorded Investment	2,822	3,238
Unpaid Principal Balance	3,516	4,286
Average Recorded Investment	3,216	3,736	4,092
Interest Income Recognized	546	369	453
With an allowance recorded [Abstract]
Recorded Investment	553	751
Unpaid Principal Balance	572	751
Related Allowance	29	100
Average Recorded Investment	596	651	864
Interest Income Recognized	19	36	37
Total [Abstract]
Recorded Investment	3,375	3,989
Unpaid Principal Balance	4,088	5,037
Average Recorded Investment	3,812	4,387	4,956
Interest Income Recognized	565	405	490
Consumer
With no related allowance recorded [Abstract]
Recorded Investment	6	26
Unpaid Principal Balance	6	27
Average Recorded Investment	20	37	106
Interest Income Recognized	2	29	25
With an allowance recorded [Abstract]
Recorded Investment	41	43
Unpaid Principal Balance	41	43
Related Allowance	8	13
Average Recorded Investment	43	43	0
Interest Income Recognized	3	3	0
Total [Abstract]
Recorded Investment	47	69
Unpaid Principal Balance	47	70
Average Recorded Investment	63	80	106
Interest Income Recognized	5	32	25
Agricultural
With no related allowance recorded [Abstract]
Recorded Investment	177	334
Unpaid Principal Balance	177	334
Average Recorded Investment	269	392	81
Interest Income Recognized	12	136	487
With an allowance recorded [Abstract]
Recorded Investment	0	0
Unpaid Principal Balance	0	0
Related Allowance	0	0
Average Recorded Investment	0	0	0
Interest Income Recognized	0	0	0
Total [Abstract]
Recorded Investment	177	334
Unpaid Principal Balance	177	334
Average Recorded Investment	269	392	81
Interest Income Recognized	12	136	487
Other
With no related allowance recorded [Abstract]
Recorded Investment	402	455
Unpaid Principal Balance	554	629
Average Recorded Investment	441	481
Interest Income Recognized	55	77
With an allowance recorded [Abstract]
Recorded Investment	0	0
Unpaid Principal Balance	0	0
Related Allowance	0	0
Average Recorded Investment	0	0
Interest Income Recognized	0	0
Total [Abstract]
Recorded Investment	402	455
Unpaid Principal Balance	554	629
Average Recorded Investment	441	481	510
Interest Income Recognized	$ 55	$ 77	$ 82

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Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
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