Note 19 - Condensed Parent Company Financial Information (Detail) - Condensed Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities:
Net income	$ 4,596	$ 1,919
Increase in other assets	(549)	649
Net cash flows used in operating activities	5,450	4,513
Cash flows from investing activities:
Net cash flows used in investing activities	(11,960)	(1,424)
Cash flows from financing activities:
Net cash flows used in financing activities	3,793	4,961
Net decrease in cash and cash equivalents	(2,717)	8,050
Cash and cash equivalents, beginning	12,529	4,479
Cash and cash equivalents, ending	9,812	12,529
Parent Company [Member]
Cash flows from operating activities:
Net income	4,596	1,919
Equity in undistributed net income of subsidiary bank	(4,687)	(1,961)
Increase in other assets	(145)	0
Net cash flows used in operating activities	(236)	(42)
Cash flows from investing activities:
Capital contribution to bank subsidiary	0	0
Net cash flows used in investing activities	0	0
Cash flows from financing activities:
Issuance of preferred stock net of issuance costs	0	0
Preferred dividend payment	(1,335)	0
Net cash flows used in financing activities	(1,335)	0
Net decrease in cash and cash equivalents	(1,571)	(42)
Cash and cash equivalents, beginning	2,292	2,334
Cash and cash equivalents, ending	$ 721	$ 2,292