Note 3 - Discontinued Operations - Income from Discontinued Operations before Income Taxes (Details) - USD ($)	3 Months Ended	9 Months Ended
Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2017	Aug. 31, 2016
Income (loss) before tax	$ (26,449)	$ (207,203)	$ (49,238)	$ (387,321)
Discontinued Operations, Held-for-sale [Member] \| Vessels Segment [Member]
Revenue from external customers		358,253		1,480,688
Gross Profit		(97,357)		(6,965)
Operating Expense	17,082	104,113	40,905	362,859
Income (loss) from operations	(17,082)	(201,470)	(40,905)	(369,824)
Income (loss) before tax	$ (26,449)	$ (207,203)	$ (49,238)	$ (387,321)

Amount before tax of income (loss) from a discontinued operation. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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