Note 10 - Subsequent Events (Detail) (Subsequent Event [Member], USD $) In Millions, unless otherwise specified	1 Months Ended
	Apr. 29, 2013	May 01, 2013
Subsequent Event [Member]
Proceeds from Issuance of Private Placement	$ 12.0
Proceeds from Sale of Income Tax Credits		1.7
Gain on Sale of Income Tax Credits		1.4
Proceeds from (Payments for) in Securities Sold under Agreements to Repurchase		15
Prepayment Penalty		1.5
Secured Debt, Repurchase Agreements		$ 10
Assets Sold under Agreements to Repurchase, Interest Rate		2.61%