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COMMITMENTS AND CONTINGENCIES
 6 Months Ended
Jun. 30, 2012
Commitments and Contingencies Disclosure [Abstract]  
Commitments and Contingencies Disclosure [Text Block]
COMMITMENTS AND CONTINGENCIES
We are subject to a number of claims of various amounts, which arise out of the normal course of business. In the opinion of management, the disposition of pending claims will not have a material adverse effect on our financial position, results of operations or cash flows.
We lease certain equipment, vehicles and operating facilities under non-cancellable operating leases that expire on various dates through 2022. The future minimum lease payments required under these leases are approximately $0.6 million in 2012, $1.1 million in 2013, $1.1 million in 2014, $1.0 million in 2015, $0.9 million in 2016 and $0.8 million in 2017. Rent expense for each of the six months ended June 30, 2012 and 2011 was $0.5 million and $0.5 million, respectively.
At June 30, 2012, firm commitments to vendors totaled $3.0 million.