Note 3 - Loans Receivable (Detail) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Financing Receivable, Recorded Investment, Nonaccrual Status	$ 2,689,000	$ 2,032,000
Transfer to Other Real Estate	1,665,000	7,683,000
Impaired Financing Receivable, Related Allowance	208,000	629,000
Performing Financing Receivable [Member] | Troubled Debt Restructuring [Member]
Financing Receivable, Modifications, Recorded Investment	6,300,000
Financing Receivable, Recorded Investment, Nonaccrual Status	199,000
Troubled Debt Restructuring [Member]
Impaired Financing Receivable, Recorded Investment	6,500,000	8,400,000
Financing Receivable, Modifications, Recorded Investment	6,500,000	8,400,000
Financing Receivable, Recorded Investment, Nonaccrual Status		8,400,000
Financing Receivable, Allowance for Credit Losses, Write-downs	478,000
Transfer to Other Real Estate	1,600,000
Impaired Financing Receivable, Related Allowance	$ 137,000	$ 277,000