Long-Term Borrowings and Subordinated Debt - Scheduled Annual Maturities and Average Interest Rates (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Debt Disclosure [Abstract]
2019 Balance	$ 37,529
2020 Balance	27,021
2021 Balance	1,077
2022 Balance	553
2023 Balance	427
Thereafter Balance	3,707
Total Long-term Balance	$ 70,314	$ 47,301	$ 14,713
2019 Average Rate	2.50%
2020 Average Rate	2.91%
2021 Average Rate	3.69%
2022 Average Rate	5.05%
2023 Average Rate	6.64%
Thereafter Average Rate	3.78%
Total Average Rate	2.79%