Note 3 - Loans (Detail) (USD $)	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011
Loans and Leases Receivable, Gross (in Dollars)	$ 1,066,922,000		$ 1,016,295,000
Impaired Financing Receivable, Interest Income, Accrual Method (in Dollars)	93,000	96,000
MetroBank [Member]
Loans and Leases Receivable, Gross (in Dollars)	12,000,000
Metro United [Member]
Loans and Leases Receivable, Gross (in Dollars)	$ 6,000,000
Consumer Loans [Member] | Minimum [Member]
Amortization Period	12
Consumer Loans [Member] | Maximum [Member]
Amortization Period	60
Minimum [Member] | MetroBank [Member]
Amortization Period	15
Balloon Payment Period	five
Minimum [Member] | Metro United [Member]
Amortization Period	25
Balloon Payment Period	five
Minimum [Member]
Amortization Period	15
Balloon Payment Period	two
Maximum [Member] | MetroBank [Member]
Amortization Period	20
Balloon Payment Period	seven
Maximum [Member] | Metro United [Member]
Amortization Period	30
Balloon Payment Period	ten
Maximum [Member]
Amortization Period	30
Balloon Payment Period	seven