Other Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Other Liabilities [Abstract]
Retirement compensation liabilities	$ 7,986	$ 8,316
Accounts payable	2,803	2,995
Historic tax credit investment	911	2,014
Litigation accrual	538	1,000
Interest payable	160	232
Other	320	21
Total other liabilities	$ 12,718	$ 14,578