LOANS, IMPAIRED LOANS (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Financing Receivable, Impaired [Line Items]
Financing Receivable, Modifications, with No Related Allowance, Recorded Investment	$ 380,000	$ 0
With no related allowance recorded [Abstract]
Recorded Investment	26,840,000	17,099,000
Unpaid Principal Balance	29,445,000	18,961,000
Average Recorded Investment	22,466,000	18,744,000	$ 20,918,000
Interest Income Recognized	1,509,000	1,771,000	1,902,000
With an allowance recorded [Abstract]
Recorded Investment	1,102,000	3,550,000
Unpaid Principal Balance	1,126,000	3,574,000
Related Allowance	62,000	191,000
Average Recorded Investment	1,039,000	3,689,000	5,229,000
Interest Income Recognized	66,000	85,000	315,000
Total [Abstract]
Recorded Investment	27,942,000	20,649,000
Unpaid Principal Balance	30,571,000	22,535,000
Average Recorded Investment	23,505,000	22,433,000	26,147,000
Interest Income Recognized	1,575,000	1,856,000	2,217,000
Interest income recognized on a cash basis	89,000	28,000	51,000
Financing Receivable, Modifications, with Related Allowance, Recorded Investment	126,000	23,000
Commercial & industrial
With no related allowance recorded [Abstract]
Recorded Investment	926,000	1,015,000
Unpaid Principal Balance	1,457,000	1,100,000
Average Recorded Investment	945,000	685,000	998,000
Interest Income Recognized	71,000	88,000	151,000
With an allowance recorded [Abstract]
Recorded Investment	264,000	296,000
Unpaid Principal Balance	269,000	301,000
Related Allowance	10,000	8,000
Average Recorded Investment	279,000	311,000	341,000
Interest Income Recognized	17,000	18,000	19,000
Total [Abstract]
Recorded Investment	1,190,000	1,311,000
Unpaid Principal Balance	1,726,000	1,401,000
Average Recorded Investment	1,224,000	996,000	1,339,000
Interest Income Recognized	88,000	106,000	170,000
Commercial, secured by real estate
With no related allowance recorded [Abstract]
Recorded Investment	21,266,000	12,677,000
Unpaid Principal Balance	22,451,000	13,608,000
Average Recorded Investment	17,353,000	14,113,000	15,274,000
Interest Income Recognized	1,136,000	1,068,000	1,140,000
With an allowance recorded [Abstract]
Recorded Investment	150,000	2,660,000
Unpaid Principal Balance	150,000	2,660,000
Related Allowance	3,000	146,000
Average Recorded Investment	153,000	2,739,000	4,194,000
Interest Income Recognized	11,000	45,000	257,000
Total [Abstract]
Recorded Investment	21,416,000	15,337,000
Unpaid Principal Balance	22,601,000	16,268,000
Average Recorded Investment	17,506,000	16,852,000	19,468,000
Interest Income Recognized	1,147,000	1,113,000	1,397,000
Residential real estate
With no related allowance recorded [Abstract]
Recorded Investment	4,122,000	2,822,000
Unpaid Principal Balance	4,872,000	3,516,000
Average Recorded Investment	3,580,000	3,216,000	3,736,000
Interest Income Recognized	258,000	546,000	369,000
With an allowance recorded [Abstract]
Recorded Investment	665,000	553,000
Unpaid Principal Balance	684,000	572,000
Related Allowance	49,000	29,000
Average Recorded Investment	583,000	596,000	651,000
Interest Income Recognized	37,000	19,000	36,000
Total [Abstract]
Recorded Investment	4,787,000	3,375,000
Unpaid Principal Balance	5,556,000	4,088,000
Average Recorded Investment	4,163,000	3,812,000	4,387,000
Interest Income Recognized	295,000	565,000	405,000
Consumer
With no related allowance recorded [Abstract]
Recorded Investment	13,000	6,000
Unpaid Principal Balance	13,000	6,000
Average Recorded Investment	32,000	20,000	37,000
Interest Income Recognized	3,000	2,000	29,000
With an allowance recorded [Abstract]
Recorded Investment	23,000	41,000
Unpaid Principal Balance	23,000	41,000
Related Allowance	0	8,000
Average Recorded Investment	24,000	43,000	43,000
Interest Income Recognized	1,000	3,000	3,000
Total [Abstract]
Recorded Investment	36,000	47,000
Unpaid Principal Balance	36,000	47,000
Average Recorded Investment	56,000	63,000	80,000
Interest Income Recognized	4,000	5,000	32,000
Agricultural
With no related allowance recorded [Abstract]
Recorded Investment	177,000	177,000
Unpaid Principal Balance	177,000	177,000
Average Recorded Investment	177,000	269,000	392,000
Interest Income Recognized	0	12,000	136,000
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	177,000	177,000
Unpaid Principal Balance	177,000	177,000
Average Recorded Investment	177,000	269,000	392,000
Interest Income Recognized	0	12,000	136,000
Other
With no related allowance recorded [Abstract]
Recorded Investment	336,000	402,000
Unpaid Principal Balance	475,000	554,000
Average Recorded Investment	379,000	441,000
Interest Income Recognized	41,000	55,000
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	336,000	402,000
Unpaid Principal Balance	475,000	554,000
Average Recorded Investment	379,000	441,000	481,000
Interest Income Recognized	$ 41,000	$ 55,000	$ 77,000