Note 6 - Shareholders' Equity (Details Textual) - USD ($)	12 Months Ended
	Feb. 28, 2016	Mar. 01, 2015	Jan. 08, 2015	Jan. 07, 2015	Oct. 18, 2012	Jul. 20, 2005
Preferred Stock, Par or Stated Value Per Share	$ 1	$ 1				$ 1
Class of Warrant or Right, Exercise Price of Warrants or Rights						$ 150
Stock Repurchase Program, Number of Shares Authorized to be Repurchased			1,250,000		1,000,000
Stock Repurchase Program, Percentage of Outstanding Shares Authorized to be Repurchased				6.00%	5.00%
Common Stock, Shares, Outstanding				20,945,634
Stock Repurchased During Period, Shares	599,832	126,564
Stock Repurchased and Retired During Period, Value	$ 12,187	$ 2,738
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased	531,412
Stock Repurchased and Retired During Period, Shares		3
Common Stock, Capital Shares Reserved for Future Issuance	1,466,030