Note 9 - Qualified Affordable Housing Partnership Investments (Details) - Anticipated Net Income Tax Benefit $ in Thousands	Mar. 31, 2016 USD ($)
Anticipated net income tax benefit less amortization of investments:
2016	$ 97
2017	127
2018	124
2019	119
2020 and thereafter	541
Total	1,008
Raymond James California Housing Opportunities Fund II [Member]
Anticipated net income tax benefit less amortization of investments:
2016	35
2017	46
2018	45
2019	45
2020 and thereafter	218
Total	389
WNC Institutional Tax Credit Fun 38, L.P. [Member]
Anticipated net income tax benefit less amortization of investments:
2016	27
2017	35
2018	34
2019	30
2020 and thereafter	128
Total	254
Merritt Community Capital Corporation Fund XV, L.P. [Member]
Anticipated net income tax benefit less amortization of investments:
2016	35
2017	45
2018	45
2019	44
2020 and thereafter	194
Total	363
California Affordable Housing Fund [Member]
Anticipated net income tax benefit less amortization of investments:
2017	1
2020 and thereafter	1
Total	$ 2