Note 11 - Segment and Geographical Information - Fees for Services Provided to Joint Ventures by Geographic Location as a Percentage of Total Fees (Details) - USD ($)	3 Months Ended	6 Months Ended
Feb. 28, 2018	Feb. 28, 2017	Feb. 28, 2018	Feb. 28, 2017
Fees	$ 1,608,890	$ 1,184,028	$ 3,116,032	$ 2,499,619
Percentage of total fees	100.00%	100.00%	100.00%	100.00%
GERMANY
Fees	$ 236,700	$ 199,509	$ 456,574	$ 402,509
Percentage of total fees	14.70%	16.80%	14.70%	16.10%
POLAND
Fees	$ 207,038	$ 153,453	$ 413,114	$ 302,657
Percentage of total fees	12.90%	13.00%	13.30%	12.10%
JAPAN
Fees	$ 172,032	$ 145,722	$ 346,077	$ 291,759
Percentage of total fees	10.70%	12.30%	11.10%	11.70%
SWEDEN
Fees	$ 165,165	$ 77,464	$ 293,119	$ 164,525
Percentage of total fees	10.30%	6.50%	9.40%	6.60%
INDIA
Fees	$ 138,437	$ 74,196	$ 225,200	$ 138,731
Percentage of total fees	8.60%	6.30%	7.20%	5.60%
FRANCE
Fees	$ 130,323	$ 83,112	$ 269,964	$ 180,785
Percentage of total fees	8.10%	7.00%	8.70%	7.20%
THAILAND
Fees	$ 111,779	$ 87,627	$ 214,311	$ 235,081
Percentage of total fees	6.90%	7.40%	6.90%	9.40%
KOREA, REPUBLIC OF
Fees	$ 99,574	$ 86,103	$ 183,062	$ 191,481
Percentage of total fees	6.20%	7.30%	5.90%	7.60%
UNITED KINGDOM
Fees	$ 82,432	$ 53,241	$ 194,207	$ 139,372
Percentage of total fees	5.10%	4.50%	6.20%	5.60%
CZECH REPUBLIC
Fees	$ 98,726	$ 73,286	$ 182,951	$ 144,114
Percentage of total fees	6.10%	6.20%	5.80%	5.80%
FINLAND
Fees	$ 76,546	$ 66,946	$ 166,172	$ 143,282
Percentage of total fees	4.80%	5.70%	5.30%	5.70%
Other Countries [Member]
Fees	$ 90,138	$ 83,369	$ 171,281	$ 165,323
Percentage of total fees	5.60%	7.00%	5.50%	6.60%