Summary of Significant Accounting Policies (Details Textual)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Summary Of Significant Accounting Policies [Line Items]
Four-for-three stock split			The stock split increased the Companys issued and outstanding shares of common stock from 3,659,753 shares of Class A Common Stock and 597,504 shares of Class B Common Stock to 4,879,186 and 796,672 shares, respectively.
Number of stock options outstanding having antidilutive effect	14,000	140,000	14,000	140,000