ex12_1.htm

Ratio of Earnings to Fixed Charges

Our earnings are inadequate to cover fixed charges. The following table sets forth the dollar amount of the coverage deficiency (in thousands) for the periods indicated.

	Year Ended December 31,
	2011				2010				2009				2008				2007
EARNINGS:
Net loss		$	(11,345	)		$	(14,022	)		$	(2,903	)		$	(3,682	)		$	(4,442	)
Plus fixed charges			58				56				64				74				72
Total loss to cover fixed charges			(11,287	)			(13,966	)			(2,839	)			(3,608	)			(4,370	)

FIXED CHARGES:
Interest portion of rental expense (see below)			58				56				64				74				72
DEFICIENCY OF EARNINGS TO COVER FIXED CHARGES		$	(11,345	)		$	(14,022	)		$	(2,903	)		$	(3,682	)		$	(4,442	)

The estimate of the interest portion of rental expense is calculated as one-third of total rental expense for the period.