Property and Equipment (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 34,549	$ 34,411
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	(24,013)	(23,972)
Property, Plant and Equipment, Net	10,536	10,439
Land, Buildings and Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	11,823	11,823
Office furnishings, leasehold improvements, computer equipment and computer software
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	22,563	22,419
Transportation and construction equipment
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 163	$ 169