PARENT COMPANY FINANCIAL STATEMENTS, Condensed Statement of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities [Abstract]
Net income	$ 5,894	$ 6,267	$ 5,859	$ 6,176	$ 5,639	$ 5,021	$ 4,375	$ 5,133	$ 24,196	$ 20,168	$ 14,819
Adjustments to reconcile net income to net cash from operating activities [Abstract]
Depreciation									2,046	1,722	1,720
Amortization									7	1,295	1,586
Stock compensation expense									301	252	217
Change in other assets									287	1,404	(1,047)
Change in other liabilities									(341)	(62)	(922)
Net cash from operating activities									29,231	27,134	20,391
Cash flows from investing activities [Abstract]
Acquisition of subsidiary, net of cash received									(4,863)	2,591	0
Net cash from (used in) investing activities									19,744	(23,068)	(25,261)
Cash flows from financing activities [Abstract]
Cash dividends paid to shareholders									(8,786)	(7,805)	(6,398)
Cash in lieu of fractional shares									0	(13)	0
Proceeds from stock option exercises									246	193	317
Payments on other borrowed funds									(2,500)	(2,500)	(3,859)
Net cash from (used in) financing activities									(35,292)	(5,954)	(17,185)
Net change in cash and cash equivalents									13,683	(1,888)	(22,055)
Cash and cash equivalents at beginning of year				80,775				82,663	80,775	82,663	104,718
Cash and cash equivalents at end of year	94,458				80,775				94,458	80,775	82,663
Parent Company [Member]
Cash flows from operating activities [Abstract]
Net income									24,196	20,168	14,819
Adjustments to reconcile net income to net cash from operating activities [Abstract]
Depreciation									78	93	89
Amortization									30	30	33
Stock compensation expense									301	252	217
Equity in undistributed earnings of subsidiaries									(7,616)	(4,037)	(4,072)
Change in other assets									(24)	(181)	(123)
Change in other liabilities									13	(43)	243
Net cash from operating activities									16,978	16,282	11,206
Cash flows from investing activities [Abstract]
Investments in nonbank subsidiaries									0	0	(250)
Repayment of investments in nonbank subsidiaries									50	0	0
Investments in subsidiaries									(1,500)	0	0
Acquisition of subsidiary, net of cash received									0	(5,212)	0
Purchases of fixed assets, net of proceeds from asset sales									(63)	(80)	(80)
Net cash from (used in) investing activities									(1,513)	(5,292)	(330)
Cash flows from financing activities [Abstract]
Cash dividends paid to shareholders									(8,786)	(7,805)	(6,398)
Cash in lieu of fractional shares									0	(13)	0
Proceeds from stock option exercises									246	193	317
Payments on other borrowed funds									(2,500)	(2,500)	(3,600)
Net cash from (used in) financing activities									(11,040)	(10,125)	(9,681)
Net change in cash and cash equivalents									4,425	865	1,195
Cash and cash equivalents at beginning of year				$ 8,759				$ 7,894	8,759	7,894	6,699
Cash and cash equivalents at end of year	$ 13,184				$ 8,759				$ 13,184	$ 8,759	$ 7,894