Intangible Assets (Details) (USD $)	6 Months Ended			6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011	Jun. 30, 2012 Customer Relationships [Member]	Dec. 31, 2011 Customer Relationships [Member]	Jun. 30, 2012 Trade Names [Member]	Dec. 31, 2011 Trade Names [Member]
Acquired Finite-Lived Intangible Assets
Useful Life				9 years 8 months 12 days	9 years 8 months 12 days	15 years 8 months 12 days	15 years 8 months 12 days
Gross	$ 12,989,000		$ 12,989,000	$ 12,502,000	$ 12,502,000	$ 487,000	$ 487,000
Accumulated Amortization	12,945,000		12,794,000	12,497,000	12,360,000	448,000	434,000
Net	44,000		195,000	5,000	142,000	39,000	53,000
Amortization of Acquired Intangible Assets	200,000	200,000
Estimated Amortization of Acquired Intangible Assets, Remainder of Year	$ 20,000