Note 10 - Operating Segment Information (Details) - Selected Operating Segment Information (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Segment Reporting Information [Line Items]
Total interest income	$ 15,275	$ 16,181	$ 30,292	$ 32,579
Total interest expense	2,294	2,536	4,489	5,290
Net interest income	12,981	13,645	25,803	27,289
(Reduction in) provision for loan losses	(25)	200	(475)	600
Net interest income after provision for loan losses	13,006	13,445	26,278	26,689
Noninterest income	1,944	1,760	3,594	3,563
Noninterest expenses	10,708	11,312	21,010	22,245
Income (loss) before income tax provision	4,242	3,893	8,862	8,007
Provision (benefit) for income taxes	1,446	1,267	3,039	2,613
Net income (loss)	2,796	2,626	5,823	5,394
MetroBank [Member]
Segment Reporting Information [Line Items]
Total interest income	11,108	12,147	21,957	24,557
Total interest expense	1,328	1,614	2,637	3,351
Net interest income	9,780	10,533	19,320	21,206
(Reduction in) provision for loan losses	0	200	(450)	600
Net interest income after provision for loan losses	9,780	10,333	19,770	20,606
Noninterest income	2,097	2,005	4,002	4,062
Noninterest expenses	7,608	8,349	15,026	16,862
Income (loss) before income tax provision	4,269	3,989	8,746	7,806
Provision (benefit) for income taxes	1,358	1,312	2,793	2,472
Net income (loss)	2,911	2,677	5,953	5,334
Metro United [Member]
Segment Reporting Information [Line Items]
Total interest income	4,163	4,027	8,329	8,008
Total interest expense	640	576	1,214	1,245
Net interest income	3,523	3,451	7,115	6,763
(Reduction in) provision for loan losses	(25)	0	(25)	0
Net interest income after provision for loan losses	3,548	3,451	7,140	6,763
Noninterest income	193	92	299	176
Noninterest expenses	2,645	2,782	5,056	5,173
Income (loss) before income tax provision	1,096	761	2,383	1,766
Provision (benefit) for income taxes	461	251	1,009	674
Net income (loss)	635	510	1,374	1,092
Other Segments [Member]
Segment Reporting Information [Line Items]
Total interest income	4	7	6	14
Total interest expense	326	346	638	694
Net interest income	(322)	(339)	(632)	(680)
(Reduction in) provision for loan losses	0	0	0	0
Net interest income after provision for loan losses	(322)	(339)	(632)	(680)
Noninterest income	(346)	(337)	(707)	(675)
Noninterest expenses	455	181	928	210
Income (loss) before income tax provision	(1,123)	(857)	(2,267)	(1,565)
Provision (benefit) for income taxes	(373)	(296)	(763)	(533)
Net income (loss)	$ (750)	$ (561)	$ (1,504)	$ (1,032)