Notes Payable (Tables)

3 Months Ended

Mar. 31, 2013

Notes Payable [Abstract]

Schedule of Future Minimum Principal Payments

Aggregate future minimum principal payments on the Equipment Loan, including the 2013 Funding, at March 31, 2013 are as follows (in thousands):

Year		Amount
2013 (remainder)	$	293
2014		390
2015		390
2016		207
	$	1,280