Condensed Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Feb. 29, 2012	Feb. 28, 2011	Feb. 29, 2012	Feb. 28, 2011
Condensed Consolidated Statements Of Operations [Abstract]
SALES	$ 8,060	$ 7,587	$ 16,458	$ 16,099
COST OF SALES	5,270	4,858	11,021	10,361
GROSS PROFIT	2,790	2,729	5,437	5,738
OPERATING EXPENSES:
Research and development	771	758	1,463	1,656
Sales and marketing	1,292	1,248	2,542	2,437
General and administrative	547	597	1,085	1,291
Corporate development	161		161
Total operating expenses	2,771	2,603	5,251	5,384
INCOME FROM OPERATIONS	19	126	186	354
OTHER INCOME (EXPENSE):
Interest expense	(50)	(59)	(118)	(131)
Other, net	(13)	14	(25)	27
Total other expense	(63)	(45)	(143)	(104)
INCOME (LOSS) BEFORE INCOME TAXES	(44)	81	43	250
Income tax expense	7	4	18	13
NET INCOME (LOSS)	$ (51)	$ 77	$ 25	$ 237
EARNINGS (LOSS) PER SHARE
Basic	$ 0.00	$ 0.01	$ 0.00	$ 0.02
Diluted	$ 0.00	$ 0.01	$ 0.00	$ 0.02
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING
Basic	11,186	10,828	11,079	10,768
Diluted	11,186	11,302	11,318	11,216