Loss Per Share (Tables)

9 Months Ended

Oct. 31, 2012

Loss Per Share [Abstract]

Computations for basic and diluted loss per share

The computations for basic and diluted loss per share are as follows:

	Three Months Ended October 31,						Nine Months Ended October 31,
	2012			2011			2012			2011
Net loss	$	(7,999	)	$	(5,523	)	$	(10,523	)	$	(9,165	)
Average shares outstanding:
Basic		8,165			8,508			8,214			8,605
Effect of stock awards		—			—			—			—
Diluted		8,165			8,508			8,214			8,605
Loss per share:
Basic	$	(0.98	)	$	(0.65	)	$	(1.28	)	$	(1.07	)
Diluted	$	(0.98	)	$	(0.65	)	$	(1.28	)	$	(1.07	)

Options to purchase shares of common stock not included in computation of diluted loss per share

The following options to purchase shares of common stock were not included in the computation of diluted loss per share because their inclusion would have been antidilutive:

	Three Months Ended October 31,				Nine Months Ended October 31,
	2012		2011		2012		2011
Shares of common stock underlying options		652		659		652		659
Exercise price range per share	$	1.69 to $9.67	$	1.69 to $8.70	$	1.69 to $9.67	$	1.69 to $8.70