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Short-Term Debt (Tables)

6 Months Ended

Jun. 30, 2012

Debt Disclosure [Abstract]

Short Term Margin Loans

(in thousands)			June 30, 2012				December 31, 2011
Outstanding UBS short-term credit line		$	2,000			$	2,000
Outstanding RBC short term margin loan			1,123				—
Total short-term margin loans		$	3,123			$	2,000

Interest Expense on Short Term Margin Loans

(in thousands)		Three months ended June 30,								Six months ended June 30,
		2012				2011				2012				2011
Interest expense UBS short-term credit line		$	13			$	13			$	24			$	23
Interest expense RBC short-term margin loan			11				6				15				21
Total interest expense, short term margin loans		$	24			$	19			$	39			$	44