Note 3 - Loans (Detail) - Loan Modifications (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Jun. 30, 2011
Commercial and Industrial [Member] | Quarter to Date [Member]
Troubled Debt Restructurings Number of contracts	1	1
Troubled Debt Restructurings Pre-modification outstanding recorded investment	$ 21	$ 1,495
Troubled Debt Restructurings Post-modification outstanding recorded investment	19	1,495
Troubled Debt Restructurings that Subsequently Defaulted Number of contracts	0	0
Commercial and Industrial [Member] | Year to Date [Member]
Troubled Debt Restructurings Number of contracts	6	3
Troubled Debt Restructurings Pre-modification outstanding recorded investment	808	1,591
Troubled Debt Restructurings Post-modification outstanding recorded investment	801	1,594
Troubled Debt Restructurings that Subsequently Defaulted Number of contracts	5	1
Troubled Debt Restructurings that Subsequently Defaulted Recorded investment	1,143	150
Commercial Real Estate Loans [Member] | Quarter to Date [Member]
Troubled Debt Restructurings Number of contracts	0	11
Troubled Debt Restructurings Pre-modification outstanding recorded investment	0	4,161
Troubled Debt Restructurings Post-modification outstanding recorded investment	0	3,624
Troubled Debt Restructurings that Subsequently Defaulted Number of contracts	1	1
Troubled Debt Restructurings that Subsequently Defaulted Recorded investment	96	82
Commercial Real Estate Loans [Member] | Year to Date [Member]
Troubled Debt Restructurings Number of contracts	8	15
Troubled Debt Restructurings Pre-modification outstanding recorded investment	1,985	4,514
Troubled Debt Restructurings Post-modification outstanding recorded investment	1,983	3,978
Troubled Debt Restructurings that Subsequently Defaulted Number of contracts	4	2
Troubled Debt Restructurings that Subsequently Defaulted Recorded investment	401	1,078
First Lien Residential Mortgage Loans [Member] | Quarter to Date [Member]
Troubled Debt Restructurings Number of contracts	6	2
Troubled Debt Restructurings Pre-modification outstanding recorded investment	425	268
Troubled Debt Restructurings Post-modification outstanding recorded investment	422	272
Troubled Debt Restructurings that Subsequently Defaulted Number of contracts	0	5
Troubled Debt Restructurings that Subsequently Defaulted Recorded investment	0	556
First Lien Residential Mortgage Loans [Member] | Year to Date [Member]
Troubled Debt Restructurings Number of contracts	10	5
Troubled Debt Restructurings Pre-modification outstanding recorded investment	802	598
Troubled Debt Restructurings Post-modification outstanding recorded investment	799	623
Troubled Debt Restructurings that Subsequently Defaulted Number of contracts		7
Troubled Debt Restructurings that Subsequently Defaulted Recorded investment		808
Junior Lein Residential Mortgage Loans [Member] | Quarter to Date [Member]
Troubled Debt Restructurings Number of contracts	0	0
Troubled Debt Restructurings Pre-modification outstanding recorded investment	0	0
Troubled Debt Restructurings Post-modification outstanding recorded investment	0	0
Troubled Debt Restructurings that Subsequently Defaulted Number of contracts	0	0
Troubled Debt Restructurings that Subsequently Defaulted Recorded investment	0	0
Junior Lein Residential Mortgage Loans [Member] | Year to Date [Member]
Troubled Debt Restructurings Number of contracts	2	0
Troubled Debt Restructurings Pre-modification outstanding recorded investment	103	0
Troubled Debt Restructurings Post-modification outstanding recorded investment	103	0
Troubled Debt Restructurings that Subsequently Defaulted Number of contracts	0	0
Troubled Debt Restructurings that Subsequently Defaulted Recorded investment	0	0
Consumer Loans [Member] | Quarter to Date [Member]
Troubled Debt Restructurings Number of contracts	0	0
Troubled Debt Restructurings Pre-modification outstanding recorded investment	0	0
Troubled Debt Restructurings Post-modification outstanding recorded investment	0	0
Troubled Debt Restructurings that Subsequently Defaulted Number of contracts	0	0
Troubled Debt Restructurings that Subsequently Defaulted Recorded investment	0	0
Consumer Loans [Member] | Year to Date [Member]
Troubled Debt Restructurings Number of contracts	2	0
Troubled Debt Restructurings Pre-modification outstanding recorded investment	107	0
Troubled Debt Restructurings Post-modification outstanding recorded investment	107	0
Troubled Debt Restructurings that Subsequently Defaulted Number of contracts	0	0
Troubled Debt Restructurings that Subsequently Defaulted Recorded investment	0	0
Quarter to Date [Member]
Troubled Debt Restructurings Number of contracts	7	14
Troubled Debt Restructurings Pre-modification outstanding recorded investment	446	5,924
Troubled Debt Restructurings Post-modification outstanding recorded investment	441	5,391
Troubled Debt Restructurings that Subsequently Defaulted Number of contracts	1	6
Troubled Debt Restructurings that Subsequently Defaulted Recorded investment	96	638
Year to Date [Member]
Troubled Debt Restructurings Number of contracts	28	23
Troubled Debt Restructurings Pre-modification outstanding recorded investment	3,805	6,703
Troubled Debt Restructurings Post-modification outstanding recorded investment	3,793	6,195
Troubled Debt Restructurings that Subsequently Defaulted Number of contracts	9	10
Troubled Debt Restructurings that Subsequently Defaulted Recorded investment	$ 1,544	$ 2,036