Investments (Details) (USD $)	6 Months Ended
	Jun. 30, 2013	Dec. 31, 2012
Certificates of Deposit [Member]
Schedule of Held-to-maturity Securities [Line Items]
Value of Held to Maturity Investments (based on cost)	$ 5,059,456	$ 5,052,921
Certificate Of Deposits One [Member]
Schedule of Held-to-maturity Securities [Line Items]
Maturity Date	Oct. 17, 2014
Value of Held to Maturity Investments (based on cost)	2,004,000	2,000,000
Certificate Of Deposits Two [Member]
Schedule of Held-to-maturity Securities [Line Items]
Maturity Date	Oct. 17, 2013
Value of Held to Maturity Investments (based on cost)	2,000,000	2,000,000
Certificate Of Deposits Three [Member]
Schedule of Held-to-maturity Securities [Line Items]
Maturity Date	Dec. 29, 2013
Value of Held to Maturity Investments (based on cost)	501,877	500,940
Certificate Of Deposits Four [Member]
Schedule of Held-to-maturity Securities [Line Items]
Maturity Date	Oct. 06, 2013
Value of Held to Maturity Investments (based on cost)	301,126	300,564
Certificate Of Deposits Five [Member]
Schedule of Held-to-maturity Securities [Line Items]
Maturity Date	Mar. 29, 2014
Value of Held to Maturity Investments (based on cost)	$ 252,453	$ 251,417