Shareholders' Equity (Tables)

12 Months Ended

Mar. 31, 2013

Shareholders' Equity

Summary of assumptions for employee stock options

Years Ended	March 31, 2013	March 31, 2012
Risk-free interest rate	0.7% to 1.0%	0.9% to 1.3%
Expected life (in years)	5.0	5.0
Expected volatility	99% to 103%	98% to 99%
Expected dividend	0%	0%

Shareholders' Equity

Summary of information about employee stock options outstanding and exercisable

The following table summarizes information about employee stock options outstanding and exercisable at March 31, 2013:

	STOCK OPTIONS OUTSTANDING				STOCK OPTIONS EXERCISABLE
Range of Exercise Prices	Number Outstanding	Weighted-Average Remaining Contractual Life (in Years)	Weighted-Average Exercise Price per Share		Number Exercisable	Weighted-Average Exercise Price per Share
$0.60 - $1.09	292,000	3.5	$	1.01	70,602	$	1.02
$1.15 - $1.34	130,000	1.8	$	1.22	76,090	$	1.20
$1.45 - $2.15	125,000	2.1	$	1.71	75,922	$	1.79
	547,000	2.8	$	1.22	222,614	$	1.34

Equity compensation plans approved by security holders

Shareholders' Equity

Summary of stock option activity and related information for equity compensation plans

	STOCK OPTIONS OUTSTANDING
	Number Outstanding		Weighted-Average Exercise Price per Share
BALANCE AT MARCH 31, 2011	585,000		$	1.62
Granted	155,000		1.05
Forfeited/expired	(105,000	)	2.38
BALANCE AT MARCH 31, 2012	635,000		$	1.35
Granted	62,000		1.34
Forfeited/expired	(260,000	)	1.55
BALANCE AT MARCH 31, 2013	437,000		$	1.24

Equity compensation plans not approved by security holders

Shareholders' Equity

Summary of stock option activity and related information for equity compensation plans

	STOCK OPTIONS OUTSTANDING
	Number Outstanding		Weighted-Average Exercise Price per Share
BALANCE AT MARCH 31, 2011	—		$	—
Granted	80,000		1.08
BALANCE AT MARCH 31, 2012	80,000		$	1.08
Granted	35,000		1.37
Forfeited/expired	(5,000	)	1.05
BALANCE AT MARCH 31, 2013	110,000		$	1.15