Note 1 - Summary of Significant Accounting Policies - Basic and Diluted Earnings Per Common Share (Details) - USD ($)	12 Months Ended
	Nov. 30, 2017	Nov. 30, 2016
Numerator for basic and diluted (loss) per common share:
Net (loss) from continuing operations	$ (1,369,359)	$ (426,182)
Net (loss) from discontinued operations	(267,722)	(395,152)
Net (loss)	$ (1,637,081)	$ (821,334)
Denominator:
For basic (loss) per share - weighted average common shares outstanding (in shares)	4,151,406	4,097,748
Effect of dilutive stock options (in shares)
For diluted (loss) per share - weighted average common shares outstanding (in shares)	4,151,406	4,097,748
(Loss) per share - Basic:
Continuing Operations (in dollars per share)	$ (0.33)	$ (0.10)
Discontinued Operations (in dollars per share)	(0.06)	(0.10)
Net (Loss) per share (in dollars per share)	(0.39)	(0.20)
(Loss) per share - Diluted:
Continuing Operations (in dollars per share)	(0.33)	(0.10)
Discontinued Operations (in dollars per share)	(0.06)	(0.10)
Net (Loss) per share (in dollars per share)	$ (0.39)	$ (0.20)