Note 6 - Preferred Stock Redemption (Details Textual) (Series D Preferred Stock [Member], USD $)	0 Months Ended
	Aug. 01, 2014
Series D Preferred Stock [Member]
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Stock Redeemed or Called During Period, Shares	120,000
Stock Redeemed in Period, Percentage	50.00%
Payments for Repurchase of Redeemable Preferred Stock	$ 6,000,000
Preferred Stock, Accretion of Redemption Discount	$ 89,000