Note 9 - Qualified Affordable Housing Project Investments (Details) - Anticipated Net Income Tax Benefit $ in Thousands	Sep. 30, 2015 USD ($)
Anticipated net income tax benefit less amortization of investments:
2015	$ 34
2016	131
2017	127
2018	125
2019 and thereafter	657
Total	1,074
Raymond James California Housing Opportunities Fund II [Member]
Anticipated net income tax benefit less amortization of investments:
2015	12
2016	46
2017	46
2018	45
2019 and thereafter	263
Total	412
WNC Institutional Tax Credit Fun 38, L.P. [Member]
Anticipated net income tax benefit less amortization of investments:
2015	9
2016	37
2017	36
2018	35
2019 and thereafter	155
Total	272
Merritt Community Capital Corporation Fund XV, L.P. [Member]
Anticipated net income tax benefit less amortization of investments:
2015	12
2016	47
2017	45
2018	45
2019 and thereafter	238
Total	387
California Affordable Housing Fund [Member]
Anticipated net income tax benefit less amortization of investments:
2015	1
2016	1
2019 and thereafter	1
Total	$ 3