Convertible Debentures (Tables)

6 Months Ended

Jun. 30, 2012

Convertible Debentures [Abstract]

Schedule of debenture interest paid with cash and principal converted into shares of common stock

Interest paid with cash and principal converted into shares of common stock are as follows (in thousands):

	Six Months Ended June 30, 2011
	Value		Shares
Conversion of principal into shares of common stock	$	8,333		514
Interest paid with cash		17		—
Total debenture payments	$	8,350		514