Goodwill And Other Intangible Assets (Narrative) (Details) (USD $)	3 Months Ended	9 Months Ended		9 Months Ended		6 Months Ended					9 Months Ended
	Sep. 30, 2011	Sep. 30, 2011	Dec. 31, 2010	Sep. 30, 2011 Maximum [Member] years	Sep. 30, 2011 Minimum [Member] years	Jun. 30, 2011 2009 Acquisition Of Contract Environmental Services, Inc. (CES) [Member] years	Sep. 30, 2011 Housekeeping Segment [Member]	Dec. 31, 2010 Housekeeping Segment [Member]	Sep. 30, 2011 Dietary Segment [Member]	Dec. 31, 2010 Dietary Segment [Member]	Sep. 30, 2011 Customer Relationships [Member] years	Sep. 30, 2011 Non-Compete Agreements [Member] years
Goodwill from acquisition, deduction period for tax purposes, years						15
Goodwill	$ 16,955,000	$ 16,955,000	$ 16,955,000				$ 14,894,000	$ 14,894,000	$ 2,061,000	$ 2,061,000
Estimated useful life of intangible assets, years				8	7
Weighted-average amortization period, years											7	8
Amortization expense	$ 492,000	$ 1,428,000