Annual report pursuant to section 13 and 15(d)

NET INCOME PER COMMON SHARE (Details)

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NET INCOME PER COMMON SHARE (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended 12 Months Ended
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
NET INCOME PER COMMON SHARE [Abstract]                      
Net Income                 $ 19,498 $ 10,321 $ 13,884
Basic earnings per common share [Abstract]                      
Weighted average shares outstanding (in shares)                 24,115,000 24,081,000 23,993,000
Per share amount (in dollars per share) $ 0.13 $ 0.22 $ 0.26 $ 0.20 $ 0.08 $ 0.13 $ 0.14 $ 0.08 $ 0.81 $ 0.43 $ 0.58
Diluted earnings per common share [Abstract]                      
Weighted average shares outstanding (in shares)                 24,745,000 24,745,000 24,267,000
Per share amount (in dollars per share) $ 0.13 $ 0.21 $ 0.26 $ 0.19 $ 0.08 $ 0.12 $ 0.14 $ 0.08 $ 0.79 $ 0.42 $ 0.57
Weighted average shares-denominator basic computation (in shares)                 24,115,000 24,081,000 23,993,000
Effect of dilutive stock options (in shares)                 630,000 664,000 274,000
Weighted average shares, as adjusted denominator diluted computation (in shares)                 24,745,000 24,745,000 24,267,000
Potential common stock shares issuable upon exercise of options                 1,226,360 1,173,180 1,347,750
Treasury of TOCCO included in earnings per share calculation                 300,000 300,000 300,000