Annual report pursuant to Section 13 and 15(d)

NATURE OF OPERATIONS AND ACCOUNTING POLICIES Schedule of Inventory Allowance (Details)

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NATURE OF OPERATIONS AND ACCOUNTING POLICIES Schedule of Inventory Allowance (Details) (Inventory Valuation Reserve [Member], USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Inventory Valuation Reserve [Member]
     
Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at beginning of period $ 9,213 $ 7,281 $ 7,054
Increases (decreases) to allowance (4,044) 1,932 227
Balance at end of period $ 5,169 $ 9,213 $ 7,281