Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity and Stock Based Compensation (Details 4)

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Stockholders' Equity and Stock Based Compensation (Details 4) (USD $)
In Millions, except Share data, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Weighted Average Grant Date Fair Value      
Share-based compensation cost (in dollars) $ 1.1 $ 1.1 $ 1.1
2006 Plan and 2012 Plan | Restricted stock awards
      
Shares      
Nonvested shares at the beginning of the period 251,150 262,275 358,650
Granted (in shares) 56,500 92,000 15,000
Vested (in shares) (107,325) (99,600) (103,000)
Forfeited (in shares) (775) (3,525) (8,375)
Nonvested shares at the end of the period 199,550 251,150 262,275
Weighted Average Grant Date Fair Value      
Nonvested shares at the beginning of period (in dollars per share) $ 11.24 $ 10.44 $ 10.18
Granted (in dollars per share) $ 12.57 $ 12.32 $ 14.35
Vested (in dollars per share) $ 10.33 $ 10.10 $ 10.28
Forfeited (in dollars per share) $ 9.77 $ 11.79 $ 8.45
Nonvested shares at the end of period (in dollars per share) $ 12.02 $ 11.24 $ 10.44
Unrecognized compensation cost (in dollars) $ 2.4    
Weighted average period for recognition of unrecognized compensation cost 2 years 10 months 24 days