Note 9 - Qualified Affordable Housing Partnership Investments - Original Investment in LIHTC Projects (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended			12 Months Ended
		Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016		Jun. 30, 2015	Dec. 31, 2015
Raymond James California Housing Opportunities Fund II [Member]
Original Investment		$ 2,000		$ 2,000			$ 2,000
Proportional Amortization Method Qualified Affordable Housing Project Investments		1,463		1,463			1,553
Proportional Amortization Method Qualified Affordable Housing Project Investments Unfunded Liability Obligation		50		50			406
Tax Credits and Benefits	[1]			114			226
Proportional Amortization Method Qualified Affordable Housing Project Investments Amortization	[2]			90			184
Net Income Tax Benefit				24			42
WNC Institutional Tax Credit Fun 38 L.P. [Member]
Original Investment		1,000		1,000			1,000
Proportional Amortization Method Qualified Affordable Housing Project Investments		745		745			797
Proportional Amortization Method Qualified Affordable Housing Project Investments Unfunded Liability Obligation		106		106			166
Tax Credits and Benefits	[1]			70			126
Proportional Amortization Method Qualified Affordable Housing Project Investments Amortization	[2]			53			93
Net Income Tax Benefit				17			33
Merritt Community Capital Corporation Fund XV, L.P. [Member]
Original Investment		2,500		2,500			2,500
Proportional Amortization Method Qualified Affordable Housing Project Investments		1,705		1,705			1,820
Proportional Amortization Method Qualified Affordable Housing Project Investments Unfunded Liability Obligation		367		367			610
Tax Credits and Benefits	[1]			138			278
Proportional Amortization Method Qualified Affordable Housing Project Investments Amortization	[2]			114			230
Net Income Tax Benefit				24			48
California Affordable Housing Fund [Member]
Original Investment		2,454		2,454			2,454
Proportional Amortization Method Qualified Affordable Housing Project Investments		542		542			645
Proportional Amortization Method Qualified Affordable Housing Project Investments Unfunded Liability Obligation
Tax Credits and Benefits	[1]			103			207
Proportional Amortization Method Qualified Affordable Housing Project Investments Amortization	[2]			103			207
Net Income Tax Benefit
Original Investment		7,954		7,954			7,954
Proportional Amortization Method Qualified Affordable Housing Project Investments		4,455		4,455			4,815
Proportional Amortization Method Qualified Affordable Housing Project Investments Unfunded Liability Obligation		523		523			1,182
Tax Credits and Benefits	[1]			425			837
Proportional Amortization Method Qualified Affordable Housing Project Investments Amortization		$ 180	$ 184	360	[2]	$ 361	714	[2]
Net Income Tax Benefit				$ 65			$ 123

[1] The amounts reflected in this column represent both the tax credits, and estimated tax benefits generated by operating losses for the year.

[2] This amount reduces the tax credits and benefits.