Note 4 - Contracts in Progress - Long-term Contracts (Details) (USD $)	Nov. 30, 2014	Nov. 30, 2013
Billings in Excess of Cost and Profit [Member]
Costs	$ 623,670	$ 115,789
Estimated earnings	204,114	21,470
	827,784	137,259
Less: amounts billed	(924,166)	(154,980)
	(96,382)	(17,721)
Cost and Profit In Excess of Billings [Member]
Costs	14,724	326,560
Estimated earnings	4,819	106,848
	19,543	433,408
Less: amounts billed	(2,000)	(391,170)
	$ 17,543	$ 42,238