Note 6 - Investments Schedule of Contractual Maturities (Details) (USD $)	Jun. 30, 2012		Dec. 31, 2011
Held-to-maturity Securities, Amortized Cost
Total held to maturity amortized cost	$ 2,470,000		$ 2,640,000
Held-to-maturity Securities, Fair Value
Total held to maturity fair value	2,524,000		2,748,000
Available-for-sale Securities, Amortized Cost
Amortized cost	72,500,000		120,757,000
Available-for-sale Securities, Fair Value
Fair value	75,516,000		118,733,000
Debt Securities
Held-to-maturity Securities, Amortized Cost
Total held to maturity amortized cost	2,470,000
Held-to-maturity Securities, Fair Value
Total held to maturity fair value	2,524,000
Available-for-sale Securities, Amortized Cost
Amortized cost	72,500,000
Available-for-sale Securities, Fair Value
Fair value	75,516,000
Non Asset Backed Security Investments, Contractual Maturities
Held-to-maturity Securities, Amortized Cost
Due in one year or less	1,734,000	[1]
Due after one year through five years	431,000	[1]
Due after five years through ten years	0	[1]
Due after ten years	305,000	[1]
Held-to-maturity Securities, Fair Value
Due in one year or less	1,784,000	[1]
Due after one year through five years	440,000	[1]
Due after five years through ten years	0	[1]
Due after ten years	300,000	[1]
Available-for-sale Securities, Amortized Cost
Due in one year or less	3,547,000	[1]
Due after one year through five years	16,975,000	[1]
Due after five years through ten years	2,377,000	[1]
Due after ten years	48,282,000	[1]
Available-for-sale Securities, Fair Value
Due in one year or less	3,547,000	[1]
Due after one year through five years	17,294,000	[1]
Due after five years through ten years	2,421,000	[1]
Due after ten years	50,779,000	[1]
RMBS
Available-for-sale Securities, Amortized Cost
Amortized cost	56,000	[2]
Available-for-sale Securities, Fair Value
Fair value	58,000	[2]
CMBS
Available-for-sale Securities, Amortized Cost
Amortized cost	244,000	[2]
Available-for-sale Securities, Fair Value
Fair value	244,000	[2]
Other ABS
Available-for-sale Securities, Amortized Cost
Amortized cost	1,019,000	[2]
Available-for-sale Securities, Fair Value
Fair value	$ 1,173,000	[2]

[1] Actual maturities may differ as a result of calls before scheduled maturity.

[2] RMBS, CMBS and Other ABS are shown separately, as they are not due at a single maturity date.