Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2016	Aug. 31, 2015	Aug. 31, 2014
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 7,016	$ 11,116	$ 18,067
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	6,943	7,875	7,326
Amortization of capitalized curriculum costs	3,865	4,093	2,824
Deferred income taxes	1,854	3,665	(679)
Stock-based compensation expense	3,121	2,536	3,534
Impairment of assets		1,302	363
Excess tax expense (benefit) from stock-based compensation	52	(137)	(2,477)
Increase (decrease) of estimated acquisition earn out liability	1,538	35	(1,579)
Changes in assets and liabilities, net of effect of acquired business:
Increase in accounts receivable, net	(576)	(4,355)	(9,548)
Decrease (increase) in inventories	(908)	2,239	(2,136)
Decrease in receivable from related party	820	620	2,248
Increase in prepaid expenses and other assets	(1,119)	(2,010)	(1,543)
Increase (decrease) in accounts payable and accrued liabilities	2,264	(5,654)	359
Increase in deferred revenue	8,112	2,481	3,287
Increase (decrease) in income taxes payable/receivable	(316)	2,548	(1,347)
Decrease in other long-term liabilities	(1)	(164)	(575)
Net cash provided by operating activities	32,665	26,190	18,124
CASH FLOWS FROM INVESTING ACTIVITIES
Purchases of property and equipment	(3,993)	(2,446)	(3,470)
Capitalized curriculum development	(2,236)	(2,166)	(7,787)
Acquisition of business, net of cash acquired		(262)	(6,167)
Net cash used for investing activities	(6,229)	(4,874)	(17,424)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from line of credit borrowings	46,454		35,331
Payments on line of credit borrowings	(46,454)		(35,331)
Proceeds from term notes payable financing	15,000
Principal payments on term notes payable	(937)
Principal payments on financing obligation	(1,472)	(1,302)	(1,155)
Purchases of common stock for treasury	(43,586)	(14,427)	(4,381)
Payment of contingent consideration liability	(2,167)
Income tax benefit (expense) recorded in paid-in capital	(52)	137	2,477
Proceeds from sales of common stock held in treasury	679	689	614
Net cash used for financing activities	(32,535)	(14,903)	(2,445)
Effect of foreign currency exchange rates on cash and cash equivalents	321	(662)	(63)
Net increase (decrease) in cash and cash equivalents	(5,778)	5,751	(1,808)
Cash and cash equivalents at beginning of the year	16,234	10,483	12,291
Cash and cash equivalents at end of the year	10,456	16,234	10,483
Supplemental disclosure of cash flow information:
Cash paid for income taxes	3,410	2,383	6,323
Cash paid for interest	2,231	2,130	2,237
Non-cash investing and financing activities:
Purchases of property and equipment financed by accounts payable	$ 334	$ 134	$ 104