Note 3 - Loans and Allowance for Loan Losses (Detail) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Qualified Loans Carrying Value Available To Secure Borrowings From Fhlb and Frb	$ 436,900,000
Loans Pledged as Collateral	4,900,000		0
General Loan Limit	20,000,000
Percentage Of Loans To Borrowers Located In New York Metropolitan Area	64.90%
Percentage Of Net Interest Income Related To Real Estate Lending	36.20%	25.30%
Net Interest Income Of Company	12,600,000	8,300,000
Loan Portfolio Percentage Of Company	54.20%
Excess Outstanding Balance Limit	60,000	60,000
Financing Receivable, Recorded Investment, Nonaccrual Status	5,228,000		5,922,000
Loans and Leases Receivable, Impaired, Interest Lost on Nonaccrual Loans	137,000		819,000
Impaired Financing Receivable, Interest Income, Cash Basis Method	9,000		61,000
Loans and Leases Receivable, Impaired, Commitment to Lend	0		0
Financing Receivable Modifications Subsequent Default Period	60 days
Non Homogeneous Loan Analysis Frequency			18 months
Non Homogeneous Loan Analysis Minimum Amount			500,000
Amount Of Loans Risk Rating Limit			100,000
Number of Days Delinquent			120 days
Greater Than 90 Days Past Due [Member]
Impaired Financing Receivable, Interest Income, Accrual Method	83,000		321,000
In Excess of $60,000 [Member]
Loans and Leases Receivable, Related Parties	0		0
Specific Reserves to Customers with Equipment Financing Receivables and Residential Real Estate Loans [Member]
Financing Receivable, Modifications, Recorded Investment	1,500,000		1,600,000
Commercial and Industrial [Member]
Financing Receivable, Recorded Investment, Nonaccrual Status	1,489,000		2,495,000
Impaired Financing Receivable, Interest Income, Accrual Method	2,000
Equipment Financing Receivables [Member]
Financing Receivable, Recorded Investment, Nonaccrual Status	36,000		339,000
Impaired Financing Receivable, Interest Income, Accrual Method	1,000		5,000
Factored Receivables [Member]
Financing Receivable, Recorded Investment, Nonaccrual Status	174,000		0
Impaired Financing Receivable, Interest Income, Accrual Method	2,000
Real Estate Residential Mortgage [Member]
Financing Receivable, Recorded Investment, Nonaccrual Status	2,754,000		2,325,000
Impaired Financing Receivable, Interest Income, Accrual Method	78,000		316,000
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	16
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 1,900,000
Loans [Member]
Concentration Risk, Benchmark Description	10%
Concentration Risk, Percentage	21.60%