Note 1 - Nature of Operations and Summary of Significant Accounting Policies (Details) - Summary of Non-Vested Restricted Stock Unit Transactions for Common Stock (Restricted Stock [Member], USD $)	6 Months Ended
	Aug. 31, 2013	Aug. 31, 2012
Restricted Stock [Member]
Note 1 - Nature of Operations and Summary of Significant Accounting Policies (Details) - Summary of Non-Vested Restricted Stock Unit Transactions for Common Stock [Line Items]
Outstanding non-vested restricted stock units	57,030	101,980
Weighted average grant date fair value (in Dollars per share)	$ 12.09	$ 9.22
Weighted average remaining vesting period (in years)	5 years 178 days	1 year 229 days
Granted	280,900
Vested	(41,390)	(44,190)
Cancelled/forfeited		(560)
Outstanding non-vested restricted stock units	296,540	57,230