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Earnings Per Share (Details) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Weighted average shares outstanding used for basic and diluted earnings per share        
Weighted average number of common shares outstanding used in the basic earnings per common share calculations 12,989,130 12,736,831 12,984,479 12,736,080
Dilutive effect of stock options        674,004
Weighted average number of common shares outstanding adjusted for effective of dilutive options 12,989,130 12,736,831 12,984,479 13,410,084
Earnings Per Share (Textual) [Abstract]        
Cash distributions to stockholders     $ 0 $ 0