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 Units (RSUs) [Member], USD $)	3 Months Ended
	May 31, 2014	May 31, 2013
Restricted Stock Units (RSUs) [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 as of February 28:	295,040	57,030
Outstanding non-vested restricted stock units as of May 31:	287,220	330,110
Weighted average grant date fair value (in Dollars per share)	$ 12.16	$ 11.78
Weighted average remaining vesting period (in years)	4 years 306 days	5 years 62 days
Granted	0	280,900
Vested	(7,820)	(7,820)