Summary of Significant Accounting Policies (Details 2)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Summary Of Significant Accounting Policies [Line Items]
Weighted average common shares outstanding, basic	5,355,367	5,299,060	5,260,320
Dilutive common equivalent shares	21,631	16,403	12,222
Weighted average common shares outstanding, assuming dilution	5,376,998	5,315,463	5,272,542