Fair Value Measurement of Financial Assets and Liabilities (Tables)

6 Months Ended

Jun. 30, 2012

Summary of Fair Value Measurement of Financial Assets and Liabilities

The following tables summarize the fair value measurements (in thousands of dollars) of our financial assets and liabilities:

	At June 30, 2012
	Total		Quoted market prices in active markets (level 1)		Significant other observable inputs (Level 2)
Cash Equivalents—Overnight Investments	$	1,593	$	—	$	1,593
	At December 31, 2011
	Total		Quoted market prices in active markets (level 1)		Significant other observable inputs (Level 2)
Cash Equivalents—Overnight Investments	$	3,190	$	—	$	3,190