Note 7 - Accrued Expenses (Detail) - Major Components Of Accrued Expenses (USD $)	Nov. 30, 2012	Nov. 30, 2011
Salaries, wages, and commissions	$ 924,123	$ 672,407
Accrued warranty expense	578,864	201,630
Other	457,253	489,239
	$ 1,960,240	$ 1,363,276

Carrying value as of the balance sheet date of obligations incurred through that date and payable arising from transactions not otherwise specified in the taxonomy. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References+ Details

Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers.

+ References+ Details