Stock-Based Compensation (Tables)

9 Months Ended

May 31, 2013

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Schedule of Share Based Compensation Stock Options Activity

A summary of the stock option activity for the nine months ended May 31, 2013, is as follows:

	Number of Shares			Weighted Average Exercise  Price		Weighted Average Remaining Term  (in years)		Aggregate Intrinsic Value
Outstanding Balance, August 31, 2012		1,824,916		$	10.94
Granted		120,000			8.49
Exercised		(49,000	)		5.99
Cancelled		(189,964	)		15.00
Outstanding Balance, May 31, 2013		1,705,952			10.46		3.79	$	5,374,500
Options Exercisable at May 31, 2013		1,083,703		$	12.93		2.62	$	1,838,900

Schedule of Share Based Payment Award Stock Options Valuation Assumptions

The Company estimated the fair value of stock options granted during the first nine months of fiscal 2013 using the following weighted-average assumptions and resulting in the following weighted-average grant date fair values:

Expected volatility	68%
Expected life (years)	4.7
Interest rate	0.5-1.0%
Weighted-average fair values	$4.60

Schedule of Share-Based Compensation, Restricted Stock Award Activity

The following table summarizes the restricted stock award activity for the nine months ended May 31, 2013 as follows:

	Number of Shares			Weighted Average Grant Date Fair Value
Nonvested at August 31, 2012		61,716		$	5.94
Granted		24,489			7.35
Vested		(61,716	)		5.94
Cancelled		—			—
Nonvested at May 31, 2013		24,489		$	7.35

Schedule of Employee Service Share-Based Compensation, Allocation of Recognized Period Costs

The Company recognizes stock-based compensation expense utilizing the accelerated multiple option approach over the requisite service period, which equals the vesting period. The following table summarizes the total stock-based compensation cost and the effect on the Company’s Condensed Consolidated Statements of Operations (in thousands):

	Three months ended May 31,				Nine months ended May 31,
	2013		2012		2013		2012
Cost of sales	$	—	$	2	$	—	$	34
Operating expenses		290		443		1,102		846
Research and development expenses		—		2		—		13
Total stock-based compensation expense	$	290	$	447	$	1,102	$	893
Income tax benefit		110		170		419		339
Total stock-based compensation expense, net of tax	$	180	$	277	$	683	$	554