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Business Description, Basis of Presentation and Significant Accounting Policies - Earnings Per Share (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
 3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Numerator:        
Net income during the period $ 1,646 $ 1,663 $ 3,070 $ 3,438
Denominator:        
Basic weighted average shares outstanding (in shares) 9,198,730 9,027,764 9,182,875 9,090,903
Dilutive common stock equivalents using treasury stock method (in shares) 408,914 379,177 433,003 394,905
Diluted weighted average shares outstanding (in shares) 9,607,644 9,406,941 9,615,878 9,485,808
Basic earnings per common share (in dollars per share) $ 0.18 $ 0.18 $ 0.33 $ 0.38
Diluted earnings per common share (in dollars per share) $ 0.17 $ 0.18 $ 0.32 $ 0.36
Weighted average options outstanding (in shares) 923,424 1,143,283 955,606 1,131,403
Anti-dilutive options not included in the computations (in shares) 276,459 167,845 169,306 157,197