Note 13 - Fair Value Measurements (Detail) - Balance of Assets Measured at Fair Value on a Recurring Basis (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Investment Securities Available for Sale
Available for sale securities	$ 18,358	$ 52,136
US States and Political Subdivisions Debt Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Investment Securities Available for Sale
Available for sale securities	1,478	6,511
US States and Political Subdivisions Debt Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Investment Securities Available for Sale
Available for sale securities	200	200
US States and Political Subdivisions Debt Securities [Member]
Investment Securities Available for Sale
Available for sale securities	1,678	6,711
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] \| Fair Value, Inputs, Level 2 [Member]
Investment Securities Available for Sale
Available for sale securities	15,055	35,492
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Investment Securities Available for Sale
Available for sale securities	15,055	35,492
Equity Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Investment Securities Available for Sale
Available for sale securities	1,625	1,366
Equity Securities [Member]
Investment Securities Available for Sale
Available for sale securities	1,625	1,366
US Government Agencies Debt Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Investment Securities Available for Sale
Available for sale securities		7,241
US Government Agencies Debt Securities [Member]
Investment Securities Available for Sale
Available for sale securities		7,241
SBA Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Investment Securities Available for Sale
Available for sale securities		1,326
SBA Securities [Member]
Investment Securities Available for Sale
Available for sale securities		1,326
Fair Value, Inputs, Level 2 [Member]
Investment Securities Available for Sale
Available for sale securities	16,533	50,570
Fair Value, Inputs, Level 3 [Member]
Investment Securities Available for Sale
Available for sale securities	$ 1,825	$ 1,566

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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Reference 9: http://www.xbrl.org/2003/role/presentationRef

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