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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, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Obsolete Inventory [Roll Forward]        
Beginning balance $ 849 $ 611 $ 799 $ 616
Provision 0 0 55 0
Write-Offs (6) (18) (11) (23)
Ending balance $ 843 $ 593 $ 843 $ 593