Note 9 - Loans (Details) - Impaired Loans by Portfolio (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Jun. 30, 2013	Mar. 31, 2013
Note 9 - Loans (Details) - Impaired Loans by Portfolio [Line Items]
Recorded Investment	$ 5,835	$ 6,378
Unpaid Principal Balance	5,797	6,346
Average Recorded Investment	6,087	7,245
Interest Income Recognized While On Impaired Statues	42	168
Residential (One to Four Family) Real Estate [Member]
Note 9 - Loans (Details) - Impaired Loans by Portfolio [Line Items]
Recorded Investment	2,233	2,255
Unpaid Principal Balance	2,194	2,223
Average Recorded Investment	2,372	2,774
Interest Income Recognized While On Impaired Statues	25	83
Multi-Family and Commercial Real Estate [Member]
Note 9 - Loans (Details) - Impaired Loans by Portfolio [Line Items]
Recorded Investment	3,317	3,550
Unpaid Principal Balance	3,318	3,550
Average Recorded Investment	3,319	4,106
Interest Income Recognized While On Impaired Statues	16	62
Commercial Loan [Member]
Note 9 - Loans (Details) - Impaired Loans by Portfolio [Line Items]
Recorded Investment	186	235
Unpaid Principal Balance	186	235
Average Recorded Investment	219	172
Interest Income Recognized While On Impaired Statues	0	8
Home Equity Line of Credit [Member]
Note 9 - Loans (Details) - Impaired Loans by Portfolio [Line Items]
Recorded Investment	49	287
Unpaid Principal Balance	49	287
Average Recorded Investment	127	138
Interest Income Recognized While On Impaired Statues	0	11
Consumer Loan [Member]
Note 9 - Loans (Details) - Impaired Loans by Portfolio [Line Items]
Recorded Investment		0
Unpaid Principal Balance	0	0
Average Recorded Investment		3
Interest Income Recognized While On Impaired Statues	0	0
Construction [Member]
Note 9 - Loans (Details) - Impaired Loans by Portfolio [Line Items]
Recorded Investment	50	51
Unpaid Principal Balance	50	51
Average Recorded Investment	50	52
Interest Income Recognized While On Impaired Statues	$ 1	$ 4