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Shareholders' Equity and Debt (Details) (USD $)
0 Months Ended 1 Months Ended 3 Months Ended
May 13, 2010
Jan. 31, 2013
Apr. 29, 2012
Jan. 31, 2011
Mar. 31, 2014
Mar. 31, 2014
Restricted Stock
Mar. 31, 2014
Employee
Restricted Stock
Mar. 31, 2014
Director
Restricted Stock
Mar. 31, 2014
Common stock
Mar. 31, 2013
Common stock
Shareholders' Equity (Textual) [Abstract]                    
Repurchase outstanding common shares $ 10,000,000.0 $ 10,000,000.0 $ 10,000,000.0 $ 10,000,000.0            
Repurchase of shares, shares                 193,486 433,166
Repurchase of shares, value         $ 919,583       $ 919,583 $ 1,900,000
Restricted stock granted in period, shares           175,000        
Restricted stock awards, vesting period             4 years 1 year