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Earnings Per Common Share (Narrative) (Details) (USD $)
6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Shares not included in computation of earnings per common share 103,570 244,083
Options and Warrants [Member] | Minimum [Member]
   
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Exercise price of common shares $ 3.23 $ 2.75
Options and Warrants [Member] | Maximum [Member]
   
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Exercise price of common shares $ 5.75 $ 6.10