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Shareholders' Equity and Debt (Shareholders' Equity) (Details) - USD ($)
6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jan. 31, 2015
Jan. 31, 2013
Apr. 30, 2012
Jan. 31, 2011
May. 13, 2010
Shareholders' Equity (Textual) [Abstract]              
Repurchase outstanding common shares     $ 10,000,000.0 $ 10,000,000.0 $ 10,000,000.0 $ 10,000,000.0 $ 10,000,000.0
Repurchase of shares, value $ 3,356,633            
Restricted Stock              
Shareholders' Equity (Textual) [Abstract]              
Restricted stock granted in period, shares 201,000            
Director | Restricted Stock              
Shareholders' Equity (Textual) [Abstract]              
Restricted stock awards, vesting period 1 year            
Common stock              
Shareholders' Equity (Textual) [Abstract]              
Repurchase of shares, shares 503,602 340,436          
Repurchase of shares, value $ 3,356,633 $ 1,600,000