Condensed Consolidated Statements Of Operations And Statements Of Comprehensive Loss - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Feb. 28, 2018	Feb. 28, 2017	Feb. 28, 2018	Feb. 28, 2017
Condensed Consolidated Statements Of Operations And Statements Of Comprehensive Loss [Abstract]
Net sales	$ 46,547	$ 42,196	$ 94,479	$ 81,983
Cost of sales	13,803	14,165	28,867	28,643
Gross profit	32,744	28,031	65,612	53,340
Selling, general, and administrative	35,097	29,370	68,921	58,465
Contract termination costs		1,500		1,500
Depreciation	1,379	928	2,280	1,794
Amortization	1,395	721	2,791	1,443
Loss from operations	(5,127)	(4,488)	(8,380)	(9,862)
Interest income	54	109	115	225
Interest expense	(692)	(623)	(1,240)	(1,244)
Loss before income taxes	(5,765)	(5,002)	(9,505)	(10,881)
Income tax benefit	3,025	1,669	4,373	3,590
Net loss	$ (2,740)	$ (3,333)	$ (5,132)	$ (7,291)
Net loss per share:
Basic and diluted	$ (0.20)	$ (0.24)	$ (0.37)	$ (0.53)
Weighted average number of common shares:
Basic and diluted	13,867	13,825	13,796	13,808
COMPREHENSIVE LOSS
Net loss	$ (2,740)	$ (3,333)	$ (5,132)	$ (7,291)
Foreign currency translation adjustments, net of income tax benefit (provision) of $(136), $(9), $(94), and $333	429	16	352	(619)
Comprehensive loss	$ (2,311)	$ (3,317)	$ (4,780)	$ (7,910)