Note 3 - Loans (Detail) (USD $)	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Impaired Financing Receivable, Interest Income, Accrual Method (in Dollars)	$ 139,000	$ 118,000
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
MetroBank [Member] | Minimum [Member]
Amortization Period	15
Balloon Payment Period	five
MetroBank [Member] | Maximum [Member]
Amortization Period	20
Balloon Payment Period	seven
Metro United [Member] | Minimum [Member]
Amortization Period	25
Balloon Payment Period	five
Metro United [Member] | Maximum [Member]
Amortization Period	30
Balloon Payment Period	ten
Minimum [Member]
Amortization Period	15
Balloon Payment Period	two
Maximum [Member]
Amortization Period	30
Balloon Payment Period	seven