Condensed Consolidated Statement of Stockholders' Equity - USD ($) $ in Thousands	Total	Salin Banc shares Inc	Additional Paid-in Capital	Additional Paid-in Capital Salin Banc shares Inc	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Beginning Balances at Dec. 31, 2018	$ 491,992		$ 276,101		$ 224,035	$ (8,144)
Net income	10,816				10,816
Other comprehensive income (loss), net of tax	8,322					8,322
Amortization of unearned compensation	91		91
Exercise of stock options	117		117
Stock option expense	57		57
Stock issued stock plans	125		125
Stock issued in Salin acquisition		$ 102,722		$ 102,722
Cash dividends on common stock	(4,524)				(4,524)
Ending Balances at Mar. 31, 2019	$ 609,468		378,963		230,327	178
Cash dividends on common stock, per share	$ 0.10
Beginning Balances at Dec. 31, 2019	$ 656,023		379,853		269,738	6,432
Net income	11,655				11,655
Other comprehensive income (loss), net of tax	2,890					2,890
Amortization of unearned compensation	200		200
Exercise of stock options	255		255
Stock option expense	50		50
Stock issued stock plans	(297)		(297)
Repurchase of outstanding stock	(19,636)		(19,636)
Cash dividends on common stock	(5,257)				(5,257)
Ending Balances at Mar. 31, 2020	$ 630,842		$ 361,019		$ 260,501	$ 9,322
Cash dividends on common stock, per share	$ 0.12