Note 1 - Basic and Diluted Earnings Per Common Share (Details) - USD ($)	12 Months Ended
	Nov. 30, 2015	Nov. 30, 2014
Basic:
Numerator: net income (loss)	$ (557,842)	$ 935,247
Denominator: average number of common shares outstanding (in shares)	4,058,382	4,047,796
Basic earnings per common share (in dollars per share)	$ (0.14)	$ 0.23
Diluted:
Numerator: net income (loss)	$ (557,842)	$ 935,247
Average number of common shares outstanding (in shares)	4,058,382	4,047,796
Effect of dilutive stock options (in shares)		4,907
Denominator: dilutive average number of common shares outstanding (in shares)	4,058,382	4,052,703
Diluted earnings per common share (in dollars per share)	$ (0.14)	$ 0.23