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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Inventories (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Obsolete Inventory [Roll Forward]        
Beginning balance $ 611 $ 509 $ 616 $ 511
Provision 0 52 0 53
Write Offs 18 2 23 5
Ending balance $ 593 $ 559 $ 593 $ 559