Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 5,411	$ 5,510
Less accumulated depreciation	3,531	3,564
Property and equipment, net	1,880	1,946
Depreciation expense	159	168
Building and improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	3,348	3,350
Electronic Data Processing Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	1,548	1,631
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 515	$ 529