Note 8 - Income Taxes (Detail) (USD $)	3 Months Ended		12 Months Ended	28 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012	Mar. 31, 2013	Mar. 31, 2013 Construction and Development [Member]	Jun. 30, 2010 Construction and Development [Member]	Dec. 31, 2008 Construction and Development [Member]	Mar. 31, 2013 PCI Loans [Member]	Mar. 31, 2013 Quantitative Reserves [Member]	Mar. 31, 2013 Qualitative Reserves [Member]
Deferred Tax Assets, Net	$ 40,800,000		$ 41,800,000	$ 40,800,000
Operating Loss Carryforwards	14,800,000			14,800,000
Provision for Loan Losses Expensed	309,000	123,000		27,300,000
Financing Receivable, Net					196,100,000	124,000,000	159,000,000
Deferred Tax Assets, Operating Loss Carryforwards, Domestic	11,200,000		14,400,000	11,200,000
Impaired Financing Receivable, Recorded Investment	17,252,000		17,742,000	17,252,000				32,000,000
Loans and Leases Receivable, Allowance	10,749,000		10,591,000	10,749,000				3,700,000
Impaired Financing Receivable, Related Allowance	1,637,000		715,000	1,637,000				987,000	7,700,000	380,000
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration	$ 11,200,000		$ 14,400,000	$ 11,200,000
Operating Loss Carryforwards, Expiration Dates	20		18