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Note 8 - Note Payable (Detail) (Unseured Note Payable [Member], USD $) In Millions, unless otherwise specified	8 Months Ended	11 Months Ended
	Aug. 31, 2011	Aug. 31, 2013	Dec. 31, 2012	Oct. 11, 2012	Oct. 14, 2011	Dec. 31, 2010
Unseured Note Payable [Member]
Debt Instrument, Face Amount				$ 1.8	$ 1.8
Debt Instrument, Periodic Payment	0.2	0.2
Debt Instrument, Interest Rate, Stated Percentage				1.80%		1.90%
Long-term Debt, Gross			$ 1.4

Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date before deducting unamortized discount or premiums (if any). May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer.

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