Stock-Based Compensation And Employee Purchase Plans (Tables)

3 Months Ended

Jun. 30, 2013

Stock Options

Disclosure Of Share-Based Compensation Arrangements By Share-Based Payment Award

Option activity for the three months ended June 30, 2013 is summarized as follows:

				Weighted
		Shares		Average
	Shares	Subject to		Exercise
	Available	Options		Price
	for Grant	Outstanding		Per Share
Balance at March 31, 2013	3,175,261	5,991,544	$	2.52
Granted - options	(90,000)	90,000		7.56
Stock purchase rights/restricted stock unit (1)	(73,500)	-		-
Exercised	-	(575,570)		2.25
Canceled/forfeited	10,046	(10,046)		3.83
Termination of plans	(1,774)	-		-
Balance at June 30, 2013	3,020,033	5,495,928	$	2.63

(1) The reduction to shares available for grant includes awards granted of 73,500 shares.

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

The following table summarizes the assumptions used to compute reported stock-based compensation to employees and directors for the three months ended June 30, 2013 and 2012:

		Three Months Ended
		June 30,
		2013		2012
Expected volatility		66%		70%
Expected dividend yield		-		-
Risk-free interest rate		0.73%		0.60%
Weighted average expected option term		4.50 years		4.30 years
Weighted average fair value of options granted	$	3.96	$	2.25

Stock Purchase Rights

Disclosure Of Share-Based Compensation Arrangements By Share-Based Payment Award

Stock purchase right activity for the three months ended June 30, 2013 is summarized as follows:

			Weighted	Weighted
			Average	Average
			Grant-Date	Remaining
	Number of		Fair Market	Contractual
	Shares		Value	Term (in Years)
Balance at March 31, 2013	958,575	$	4.11	2.52
Granted	-		-
Released	(85,205)		2.29
Forfeited	(8,750)		5.30
Balance at June 30, 2013	864,620	$	4.27	2.36

Restricted Stock Units

Disclosure Of Share-Based Compensation Arrangements By Share-Based Payment Award

Restricted stock unit activity for the three months ended June 30, 2013 is summarized as follows:

				Weighted
			Weighted	Average
			Average	Remaining
	Number of		Purchase	Contractual
	Shares		Price	Term (in Years)
Balance at March 31, 2013	25,000	$	-	2.47
Granted	73,500		-
Released	-		-
Forfeited	-		-
Balance at June 30, 2013	98,500	$	-	2.28