Note 13 - Employee Benefit Plans (Details Textual) - USD ($)	12 Months Ended
	Nov. 30, 2019	Nov. 30, 2018
Defined Contribution Plan, Employer Matching Contribution, Percent of Match	25.00%
Defined Contribution Plan Minimum Threshold Percentage of Employee Contributions	4.00%
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent	1.00%
Defined Contribution Plan, Cost	$ 36,253	$ 31,980