CONSOLIDATED STATEMENTS OF EQUITY - 9 months ended May 31, 2017 - USD ($) $ in Thousands	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income (loss)	Retained Earnings	Total
Balance at Aug. 31, 2016	$ 928	$ 14,719	$ (15,479)	$ 173,921	$ 174,089
Balance (in shares) at Aug. 31, 2016	9,278,486
Increase (Decrease) in Stockholders' Equity
Restricted stock grants, net of forfeitures	$ 4	(4)
Restricted stock grants, net of forfeitures (in shares)	44,567
Amortization of restricted stock grants		1,285			1,285
Amortization of stock option grants		374			374
Exercise of stock options	$ 8	1,245			1,253
Exercise of stock options (in shares)	80,168
Common stock received for payment of stock option exercises	$ (2)	(1,156)			(1,158)
Common stock received for payment of stock option exercises (in shares)	(15,079)
Common stock retained to pay statutory minimum withholding taxes on common stock	$ (2)	(2,012)			(2,014)
Common stock retained to pay statutory minimum withholding taxes on common stock (in shares)	(23,892)
Cash dividend paid, $0.70 per share (per share)				(6,532)	(6,532)
Change in funded status of pension plan, net of tax $234			441		441
Foreign currency translation adjustment			(631)		(631)
Net unrealized gain on restricted investments, net of tax $48			87		87
Net Income				30,601	30,601
Balance at May. 31, 2017	$ 936	$ 14,451	$ (15,582)	$ 197,990	$ 197,795
Balance (in shares) at May. 31, 2017	9,364,250