Parent Company Financial Information - Consolidated Statements of Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Condensed Financial Statements, Captions [Line Items]
Dividends from subsidiary	$ 451	$ 321	$ 319
Income tax benefit	4,861	5,646	10,826
Net Income	20,906	22,579	15,249
Parent Company
Condensed Financial Statements, Captions [Line Items]
Dividends from subsidiary	25,000	11,000	6,000
Other income	823	456	588
Expenses	4,232	2,396	1,862
Income tax benefit	(601)	(407)	(581)
Income before equity in undistributed earnings of subsidiary	22,192	9,467	5,307
Equity in undistributed earnings of subsidiary	(1,286)	13,112	9,942
Net Income	$ 20,906	$ 22,579	$ 15,249