CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Shares	Retained Earnings	Treasury Shares	Accumulated Other Comprehensive Income (Loss)	Calculated under Revenue Guidance in Effect before Topic 606 [Member]	Calculated under Revenue Guidance in Effect before Topic 606 [Member] Common Shares	Calculated under Revenue Guidance in Effect before Topic 606 [Member] Retained Earnings	Calculated under Revenue Guidance in Effect before Topic 606 [Member] Treasury Shares	Calculated under Revenue Guidance in Effect before Topic 606 [Member] Accumulated Other Comprehensive Income (Loss)	Difference between Revenue Guidance in Effect before and after Topic 606 [Member]
Balance (in shares) at Dec. 31, 2015		9,925,547
Balance at beginning of year at Dec. 31, 2015	$ 140,108	$ 76,908	$ 74,629	$ (11,665)	$ 236
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	12,482		12,482
Other comprehensive income, net of taxes	(2,853)				(2,853)
Dividend Reinvestment and Stock Purchase Plan (in shares)		21,088
Dividend Reinvestment and Stock Purchase Plan	379	$ 379
Repurchase of stock warrants	(1,545)	$ (1,545)
Exercise of stock options (in shares)		51,390
Exercise of stock options	592	$ 592
Excess tax (benefit) expense on exercise and forfeiture of stock options	61	61
Compensation expense relating to stock options	5	$ 5
Compensation expense relating to restricted stock (in shares)		0
Compensation expense relating to restricted stock	90	$ 90
Common stock dividends, $0.65 per share	(6,375)		(6,375)
Balance (in shares) at Dec. 31, 2016		9,998,025
Balance at end of year at Dec. 31, 2016	142,944	$ 76,490	80,736	(11,665)	(2,617)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period, as adjusted					(2,617)
Cumulative effect of changes in accounting principles | Accounting Standards Update 2014-09 [Member]											$ 0
Net income	12,972		12,972
Other comprehensive income, net of taxes	275				275
Dividend Reinvestment and Stock Purchase Plan (in shares)		17,609
Dividend Reinvestment and Stock Purchase Plan	360	$ 360
Repurchase of stock warrants	0
Exercise of stock options (in shares)		3,398
Exercise of stock options	51	$ 51
Compensation expense relating to stock options	1	$ 1
Compensation expense relating to restricted stock (in shares)		4,027
Compensation expense relating to restricted stock	75	$ 75
Common stock dividends, $0.65 per share	(6,407)		(6,407)
Balance (in shares) at Dec. 31, 2017		10,023,059					10,023,059
Balance at end of year at Dec. 31, 2017	150,271				(2,342)	$ 150,271	$ 76,977	$ 87,301	$ (11,665)	$ (2,342)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period, as adjusted					(2,867)
Cumulative effect of changes in accounting principles | Accounting Standards Update 2014-09 [Member]											$ (525)
Net income	14,845		14,845
Other comprehensive income, net of taxes	(1,852)				(1,852)
Dividend Reinvestment and Stock Purchase Plan (in shares)		22,936
Dividend Reinvestment and Stock Purchase Plan	416	$ 416
Acquisition of BNB Bancorp, Inc. (in shares)		3,253,060
Acquisition of ______________	63,598	$ 63,598
Repurchase of stock warrants	0
Exercise of stock options (in shares)		6,987
Exercise of stock options	72	$ 72
Repurchase of common stock		(21,400)
Treasury Stock, Value, Acquired, Cost Method	(348)			(348)
Compensation expense relating to restricted stock (in shares)		10,634
Compensation expense relating to restricted stock	107	$ 107
Common stock dividends, $0.65 per share	(8,124)		(8,124)
Balance (in shares) at Dec. 31, 2018		13,295,276
Balance at end of year at Dec. 31, 2018	$ 218,985	$ 141,170	$ 94,547	$ (12,013)	$ (4,719)