Note 1 - Summary of Significant Accounting Policies - Basic and Diluted Earnings Per Common Share (Details) - USD ($)	12 Months Ended
	Nov. 30, 2018	Nov. 30, 2017
Numerator for basic and diluted (loss) per share of common stock:
Net (loss) from continuing operations	$ (3,336,049)	$ (1,369,359)
Net (loss) from discontinued operations	(50,853)	(267,722)
Net (loss)	$ (3,386,902)	$ (1,637,081)
Denominator:
For basic net (loss) per share - weighted average shares of common stock outstanding (in shares)	4,202,836	4,151,406
Effect of dilutive stock options (in shares)
For diluted net (loss) per share - weighted average shares of common stock outstanding (in shares)	4,202,836	4,151,406
(Loss) per share - basic:
Continuing operations (in dollars per share)	$ (0.80)	$ (0.33)
Discontinued operations (in dollars per share)	(0.01)	(0.06)
Net (loss) per share (in dollars per share)	(0.81)	(0.39)
(Loss) per share - diluted:
Continuing operations (in dollars per share)	(0.80)	(0.33)
Discontinued operations (in dollars per share)	(0.01)	(0.06)
Net (loss) per share (in dollars per share)	$ (0.81)	$ (0.39)