Note 11 - Segment and Geographic Information - Services Provided to Joint Ventures by Geographic Location (Details) - USD ($)	3 Months Ended		6 Months Ended
	Feb. 28, 2019	Feb. 28, 2018	Feb. 28, 2019	Feb. 28, 2018
Fees	$ 1,436,774	$ 1,608,890	$ 2,865,209	$ 3,116,032
Percentage of total fees	100.00%	100.00%	100.00%	100.00%
GERMANY
Fees	$ 215,337	$ 236,700	$ 430,328	$ 456,574
Percentage of total fees	15.00%	14.70%	15.00%	14.70%
POLAND
Fees	$ 188,529	$ 207,038	$ 370,374	$ 413,114
Percentage of total fees	13.10%	12.90%	12.90%	13.30%
JAPAN
Fees	$ 167,496	$ 172,032	$ 337,296	$ 346,077
Percentage of total fees	11.70%	10.70%	11.70%	11.10%
SWEDEN
Fees	$ 149,750	$ 165,165	$ 279,993	$ 293,119
Percentage of total fees	10.40%	10.30%	9.80%	9.40%
FRANCE
Fees	$ 106,270	$ 130,323	$ 216,332	$ 269,964
Percentage of total fees	7.40%	8.10%	7.60%	8.70%
THAILAND
Fees	$ 105,299	$ 111,779	$ 203,647	$ 214,311
Percentage of total fees	7.30%	6.90%	7.10%	6.90%
UNITED KINGDOM
Fees	$ 96,209	$ 82,432	$ 190,990	$ 194,207
Percentage of total fees	6.70%	5.10%	6.70%	6.20%
CZECH REPUBLIC
Fees	$ 93,928	$ 98,726	$ 183,620	$ 182,951
Percentage of total fees	6.60%	6.10%	6.40%	5.80%
KOREA, REPUBLIC OF
Fees	$ 87,413	$ 99,574	$ 173,880	$ 183,062
Percentage of total fees	6.10%	6.20%	6.10%	5.90%
INDIA
Fees	$ 85,401	$ 138,437	$ 180,128	$ 225,200
Percentage of total fees	5.90%	8.60%	6.30%	7.20%
FINLAND
Fees	$ 64,648	$ 76,546	$ 146,464	$ 166,172
Percentage of total fees	4.50%	4.80%	5.10%	5.30%
Other Countries [Member]
Fees	$ 76,494	$ 90,138	$ 152,157	$ 171,281
Percentage of total fees	5.30%	5.60%	5.30%	5.50%