Stock-Based Compensation (Tables)

6 Months Ended

Feb. 28, 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 six months ended February 28, 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		100,000			7.97
Exercised		(35,500	)		5.65
Cancelled		(69,964	)		13.43
Outstanding Balance, February 28, 2013		1,819,452			10.79		3.76	$	3,841,500
Options Exercisable at February 28, 2013		1,216,453		$	13.16		2.63	$	1,341,700

Schedule of Share Based Payment Award Stock Options Valuation Assumptions

The Company estimated the fair value of stock options granted during the first six 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)	4.6
Interest rate	0.6-1.0%
Weighted-average fair values	$4.30

Schedule of Share-Based Compensation, Restricted Stock Award Activity

The following table summarizes the restricted stock award activity for the six months ended February 28, 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 February 28, 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				Six months ended
	February 28, 2013		February 29, 2012		February 28, 2013		February 29, 2012
Cost of sales	$	—	$	6	$	—	$	32
Operating expenses		395		200		812		403
Research and development expenses		—		2		—		11
Total stock-based compensation expense	$	395	$	208	$	812	$	446
Income tax benefit		150		79		309		169
Total stock-based compensation expense, net of tax	$	245	$	129	$	503	$	277