Property and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Total property and equipment, at cost	$ 32,691		$ 32,691		$ 31,107
Less accumulated depreciation	19,206		19,206		18,021
Property and equipment, net	13,485		13,485		13,086
Depreciation	1,272	$ 1,109	2,427	$ 2,210
Housekeeping and office equipment and furniture
Property, Plant and Equipment [Line Items]
Total property and equipment, at cost	31,374		31,374		29,852
Laundry and linen equipment installations
Property, Plant and Equipment [Line Items]
Total property and equipment, at cost	1,179		1,179		1,117
Autos and trucks
Property, Plant and Equipment [Line Items]
Total property and equipment, at cost	$ 138		$ 138		$ 138