Debt (Tables)

12 Months Ended

Dec. 31, 2012

Debt [Abstract]

Components of the Company's debt balances

The following table presents the components of the Company's debt balance as of December 31, 2012.

	December 31, 2012
	(in thousands)
Debt:
Notes payable	$20,000
Add:
Accretion of end of term charge	44
Less:
Issuance fees paid to lender	(194)
Discount from warrant	(622)
Current portion of long-term debt	(3,007)
Long-term debt	$16,221

Future principal payments

Future principal repayments of the two Notes are as follows (in thousands):

Year Ending December 31:
2013	$3,007
2014	7,724
2015	8,481
2016	788
Total	$20,000