Property and Equipment (Details)

v2.3.0.11

Property and Equipment (Details) (USD $) In Thousands	Jun. 30, 2012	Dec. 31, 2011
Property and equipment
Pump equipment	$ 32,457	$ 31,734
Furniture, fixtures, and equipment	2,392	2,226
Accumulated depreciation	(20,409)	(18,196)
Total	$ 14,440	$ 15,764