Leases (Tables)

12 Months Ended

Dec. 31, 2012

Leases [Abstract]

Capital Leased Assets

The following is an analysis of the leased property under capital leases by major class (in thousands):

	Asset balances at December 31,
Class of property	2012		2011
Lab equipment	$	489	$	489
Leasehold improvements	27		27
Total property under capital leases	516		516
Less accumulated depreciation and amortization	211		137
Capital leased assets, net	$	305	$	379

Minimum Lease Payments for Capital Leases

The following is a schedule by years of the future minimum lease payments under capital leases together with the present value of the net minimum lease payments as of December 31, 2012 (in thousands):

Year ending December 31:
2013	$	60
2014	19
2015	18
2016	4
Total minimum lease payments	101
Less amount representing interest	8
Present value of net minimum lease payments	$	93

Minimum Rental Payments for Operating Leases

Future minimum lease payments under the noncancelable operating leases (with initial or remaining lease terms in excess of one year) as of December 31, 2012 are as follows (in thousands):

Year ending December 31:
2013	$	484
2014	441
2015	193
2016	170
2017	29
	$	1,317