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Summary of Significant Accounting Policies - Earnings Per Share (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
 3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Numerator:    
Net income $ 490 $ 731
Denominator:    
Basic weighted average shares outstanding 9,082,546 9,152,859
Dilutive common stock equivalents using treasury stock method 476,395 241,322
Diluted weighted average shares outstanding 9,558,941 9,394,181
Basic earnings per common share $ 0.05 $ 0.08
Diluted earnings per common share $ 0.05 $ 0.08
Weighted average options outstanding 1,044,208 1,128,483
Anti-dilutive options not included in the computations 116,000 208,957