SUMMARIZED QUARTERLY FINANCIAL DATA - Unaudited (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Income Statement Abstract
Income Tax Expense (Benefit)	$ 713	$ 580
Net income (loss)	1,363	(251)	26,024
Quarterly Financial Information Disclosure Abstract
Sales Revenue, Net	78,235	78,360
Operating Income Loss	11,924	11,772
Net Income (Loss) Attributable to Parent	$ 1,363	$ (251)	$ 26,024
Weighted average basic common shares outstanding	37,660,123	37,138,186
Weighted Average Number Of Diluted Shares Outstanding	38,501,319	37,138,186