Condensed Financial Statements - Parent Company Only (Schedule of Condensed Balance Sheet) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Assets
Other assets	$ 3,879	$ 1,738
Total Assets	1,797,536	1,689,227
Liabilities and Stockholders' Equity
Guaranteed preferred beneficial interest in junior subordinated debentures	12,000	12,000
Subordinated notes - 6.25%	23,000	23,000
Total Liabilities	1,616,042	1,534,745
Stockholders' Equity
Common stock	59	56
Additional paid in capital	95,474	84,397
Retained earnings	85,059	72,594
Accumulated other comprehensive loss	1,504	(1,847)	$ (1,191)	$ (928)
Unearned ESOP shares	(602)	(718)
Total Stockholders’ Equity	181,494	154,482	$ 109,957	$ 104,426
Total Liabilities and Stockholders’ Equity	1,797,536	1,689,227
Parent Company [Member]
Assets
Non interest bearing cash	3,268	4,246
Interest bearing cash	10,759	0
Investment in wholly owned subsidiaries	202,976	185,445
Other assets	1,214	1,387
Total Assets	218,217	191,078
Liabilities and Stockholders' Equity
Current liabilities	1,351	1,224
Guaranteed preferred beneficial interest in junior subordinated debentures	12,372	12,372
Subordinated notes - 6.25%	23,000	23,000
Total Liabilities	36,723	36,596
Stockholders' Equity
Common stock	59	56
Additional paid in capital	95,474	84,397
Retained earnings	85,059	72,594
Accumulated other comprehensive loss	1,504	(1,847)
Unearned ESOP shares	(602)	(718)
Total Stockholders’ Equity	181,494	154,482
Total Liabilities and Stockholders’ Equity	$ 218,217	$ 191,078
Subordinated notes interest rate	6.25%	6.25%