PARENT COMPANY FINANCIAL STATEMENTS, Condensed Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
ASSETS [Abstract]
Cash	$ 22,992	$ 40,814
Premises and equipment	29,385	23,815
Other assets	1,171	2,525
Total assets	1,690,115	1,493,424
LIABILITIES AND STOCKHOLDERS' EQUITY [Abstract]
Other liabilities	3,739	3,315
Other borrowed funds	2,500	5,000
Total liabilities	1,473,386	1,310,069
Stockholders' equity [Abstract]
Common stock	133,248	110,445
Retained earnings	87,333	74,983
Accumulated other comprehensive income (loss)	(3,852)	(2,073)
Total stockholders' equity	216,729	183,355	$ 174,184	$ 147,232
Total liabilities and stockholders' equity	1,690,115	1,493,424
Parent Company [Member]
ASSETS [Abstract]
Cash	8,759	7,894
Investment in subsidiaries	215,888	186,059
Premises and equipment	271	284
Other assets	730	550
Total assets	225,648	194,787
LIABILITIES AND STOCKHOLDERS' EQUITY [Abstract]
Other liabilities	1,013	1,056
Other borrowed funds	2,500	5,000
Subordinated debt	5,406	5,376
Total liabilities	8,919	11,432
Stockholders' equity [Abstract]
Common stock	133,248	110,445
Retained earnings	87,333	74,983
Accumulated other comprehensive income (loss)	(3,852)	(2,073)
Total stockholders' equity	216,729	183,355
Total liabilities and stockholders' equity	$ 225,648	$ 194,787