Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Aug. 31, 2014	Aug. 31, 2013	Aug. 31, 2012
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 18,067	$ 14,319	$ 7,841
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	7,326	6,131	5,698
Amortization of capitalized curriculum costs	2,824	1,891	1,816
Deferred income taxes	(679)	(1,739)	2,708
Share-based compensation expense	3,534	3,589	3,835
Excess income tax benefits from share-based compensation	(2,477)	(903)
Reduction of estimated earn out liability	(1,579)
Loss (gain) on disposals of assets		(17)	36
Changes in assets and liabilities, net of effect of acquired business:
Increase in accounts receivable, net	(9,548)	(15,171)	(5,810)
Decrease (increase) in inventories	(2,136)	(358)	96
Decrease (increase) in receivable from related party	2,611	(692)	(1,349)
Increase in prepaid expenses and other assets	(1,543)	(122)	(39)
Increase (decrease) in accounts payable and accrued liabilities	3,646	6,173	(197)
Increase (decrease) in income taxes payable/receivable	(1,347)	1,504	587
Increase (decrease) in other long-term liabilities	(575)	923	340
Net cash provided by operating activities	18,124	15,528	15,562
CASH FLOWS FROM INVESTING ACTIVITIES
Purchases of property and equipment	(3,470)	(2,174)	(2,279)
Capitalized curriculum development and other intangible assets	(7,787)	(3,224)	(2,113)
Acquisition of business, net of cash acquired	(6,167)	(4,185)
Net cash used for investing activities	(17,424)	(9,583)	(4,392)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from line of credit borrowings	35,331		8,523
Payments on line of credit borrowings	(35,331)		(8,523)
Payments on notes payable financing		(2,708)	(2,292)
Principal payments on long-term debt and financing obligation	(1,155)	(1,022)	(895)
Purchases of common stock for treasury	(4,381)	(1,309)	(440)
Income tax benefits recorded in paid-in capital	2,477	903
Proceeds from sales of common stock held in treasury	614	495	435
Exercise of common stock warrants		(55)
Management stock loan activity		(138)
Net cash used for financing activities	(2,445)	(3,834)	(3,192)
Effect of foreign currency exchange rates on cash and cash equivalents	(63)	(831)	17
Net increase (decrease) in cash and cash equivalents	(1,808)	1,280	7,995
Cash and cash equivalents at beginning of the year	12,291	11,011	3,016
Cash and cash equivalents at end of the year	10,483	12,291	11,011
Supplemental disclosure of cash flow information:
Cash paid for income taxes	6,323	3,996	2,330
Cash paid for interest	2,237	2,322	2,473
Non-cash investing and financing activities:
Purchases of property and equipment financed by accounts payable	104	101	481
Acquisition of business financed by accrued liabilities		$ 2,250