Deposits (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Deposits, by Type [Abstract]
Noninterest-bearing Deposit Liabilities	$ 575,784	$ 480,283
Interest-bearing Domestic Deposit, Demand	903,426	700,376
Interest-bearing Domestic Deposit, Savings	432,319	359,065
Interest-bearing Domestic Deposit, Money Market	485,388	390,880
Interest-bearing Domestic Deposit, Time Deposits	591,769	344,035
Total deposits	2,988,686	2,274,639
Time Deposits, $100,000 or More	87,517	52,598	$ 55,768
Maturities of Time Deposits [Abstract]
Time Deposit Maturities, Next Twelve Months	318,879
Time Deposit Maturities, Year Two	185,814
Time Deposit Maturities, Year Three	48,953
Time Deposit Maturities, Year Four	21,714
Time Deposit Maturities, Year Five	14,976
Time Deposit Maturities, after Year Five	1,433
Time Deposits	591,769
Total of Public entitiy balances	$ 94,800	$ 100,828