Note 8 - Fair Value Measurement (Details) - Fair Value of Assets on a Recurring Basis Using SIgnificant Unobservable Inputs (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance at beginning of year	$ 1,548	$ (1,464)
Balance at end of period	2,885	4,130
Settlements - principal reductions in loans held for sale	(826)	(969)
Loan participations sold to related party	0	(2,168)
Loans held for sale transferred to other real estate owned	0	(492)
Cancellation of warrants accounted for as liabilities	0	4,955
Changes in fair value of warrant liability	0	79
Change in SBA Loans Held For Sale [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Transfers into Level 3	1,849	(93)
Loans Held For Sale [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Transfers into Level 3	0	4,282
Reduction in loans held for sale valuation reserve	$ 314	$ 0