Intangible Assets

3 Months Ended

Mar. 31, 2012

Intangible Assets [Abstract]

Intangible Assets

(5)   Intangible Assets

The Company amortizes intangible assets on a straight line basis over their estimated useful lives as follows:

Trademarks	1-10 years
Contracts - third party	7 years
Contracts - owned equipment	5-7 years

Total amortization expense for the three months ended March 31, 2012 and 2011 was $0.2 million and $0.3 million, respectively. Intangible assets as of March 31, 2012 and December 31, 2011 were as follows (in thousands):

March 31, 2012	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Trademarks	$	1,278	$	(735	)	$	543
Contracts - third party		3,650		(2,868	)		782
Contracts - owned equipment		3,977		(3,172	)		805
Total intangible assets	$	8,905	$	(6,775	)	$	2,130

December 31, 2011	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Trademarks	$	1,278	$	(702	)	$	576
Contracts - third party		3,650		(2,738	)		912
Contracts - owned equipment		3,924		(3,079	)		845
Total intangible assets	$	8,852	$	(6,519	)	$	2,333