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Available-for-Sale Securities	12 Months Ended
	Dec. 31, 2012
Available-for-Sale Securities [Abstract]
Available-for-Sale Securities	4. Available-for-Sale Securities Available-for-sale securities at December 31, 2011 consisted of the following: Certificates of deposit maturing in less than 12 months $ 2,211,287 There were no available-for-sale securities at December 31, 2012. At December 31, 2011, the carrying value of the available-for-sale securities approximates fair value.

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- Definition

The entire disclosure for financial instruments. This disclosure includes, but is not limited to, fair value measurements of short and long term marketable securities, international currencies forward contracts, and auction rate securities. Financial instruments may include hedging and non-hedging currency exchange instruments, derivatives, securitizations and securities available for sale at fair value. Also included are investment results, realized and unrealized gains and losses as well as impairments and risk management disclosures.

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