Long-Term Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Long-term debt
Total long-term debt	$ 207,546	$ 202,459
Federal Home Loan Bank advances
Long-term debt
Total long-term debt	7,493	8,542
Other long-term debt
Long-term debt
Total long-term debt	98	147
Junior subordinated debentures
Long-term debt
Total long-term debt	85,881	95,643
Subordinated notes
Long-term debt
Total long-term debt	$ 114,074	$ 98,127