Note 8 - Securities Available For Sale (Details) - Summary of Securities Available for Sale (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Mortgage-backed securities:
Amortized cost	$ 127,428	$ 108,687
Gross unrealized gains	314	326
Gross unrealized losses	(495)	(1,057)
Fair value	127,247	107,956
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Mortgage-backed securities:
Amortized cost	3,649	4,899
Gross unrealized gains	229	314
Gross unrealized losses	0	0
Fair value	3,878	5,213
US Government Agencies Debt Securities [Member]
Mortgage-backed securities:
Amortized cost	123,021	103,030
Gross unrealized gains	81	1
Gross unrealized losses	(110)	(637)
Fair value	122,992	102,394
Corporate Debt Securities [Member]
Mortgage-backed securities:
Amortized cost	700	700
Gross unrealized gains	0	0
Gross unrealized losses	(385)	(420)
Fair value	315	280
Equity Securities [Member]
Mortgage-backed securities:
Amortized cost	58	58
Gross unrealized gains	4	11
Gross unrealized losses	0	0
Fair value	62	69
Other Marketable Securities [Member]
Mortgage-backed securities:
Amortized cost	123,779	103,788
Gross unrealized gains	85	12
Gross unrealized losses	(495)	(1,057)
Fair value	123,369	102,743
Federal Home Loan Mortgage Corporation Certificates and Obligations (FHLMC) [Member] | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Mortgage-backed securities:
Amortized cost	1,940	2,749
Gross unrealized gains	131	183
Gross unrealized losses	0	0
Fair value	2,071	2,932
Federal National Mortgage Association Certificates and Obligations (FNMA) [Member] | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Mortgage-backed securities:
Amortized cost	1,709	2,150
Gross unrealized gains	98	131
Gross unrealized losses	0	0
Fair value	$ 1,807	$ 2,281