Investments (Tables)

12 Months Ended

Dec. 31, 2012

Investments [Abstract]

Summary of Available-for-sale Securities

The Company has no available-for-sale securities at December 31, 2012.  In 2011, the Company invested in U.S. Treasury Securities that were short in duration. The following is a summary of the Company's available-for-sale securities at December 31, 2011:

	At December 31, 2011
(in thousands)	Amortized Costs		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Market Value
U.S. Treasury securities	$	1,966	$	-	$	-	$	1,966