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Note 3 - Securities (Tables) | 9 Months Ended
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Sep. 30, 2012
Available-for-sale Securities [Table Text Block] |
Securities Available for Sale |  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Estimated Fair Value |
September 30, 2012 |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury securities |  |  | ---- |  |  |  | ---- |  |  |  | ---- |  |  |  | ---- |
U.S. Government sponsored entity securities |  | $ | 1,010 |  |  | $ | 6 |  |  | $ | ---- |  |  | $ | 1,016 |
Agency mortgage-backed securities, residential |  |  | 99,519 |  |  |  | 2,954 |  |  |  | ---- |  |  |  | 102,473 |
Total securities |  | $ | 100,529 |  |  | $ | 2,960 |  |  | $ | ---- |  |  | $ | 103,489 |
December 31, 2011 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury securities |  | $ | 5,510 |  |  | $ | 3 |  |  | $ | ---- |  |  | $ | 5,513 |
U.S. Government sponsored entity securities |  |  | 2,501 |  |  |  | 58 |  |  |  | ---- |  |  |  | 2,559 |
Agency mortgage-backed securities, residential |  |  | 76,203 |  |  |  | 1,407 |  |  |  | (12 | ) |  |  | 77,598 |
Total securities |  | $ | 84,214 |  |  | $ | 1,468 |  |  | $ | (12 | ) |  | $ | 85,670 |
Held-to-maturity Securities [Table Text Block] |
Securities Held to Maturity |  | Amortized Cost |  |  | Gross Unrecognized Gains |  |  | Gross Unrecognized Losses |  |  | Estimated Fair Value |
September 30, 2012 |  |  |  |  |  |  |  |  |  |  |  |
Obligations of states and political subdivisions |  | $ | 23,660 |  |  | $ | 664 |  |  | $ | (31 | ) |  | $ | 24,293 |
Agency mortgage-backed securities, residential |  |  | 18 |  |  |  | ---- |  |  |  | ---- |  |  |  | 18 |
Total securities |  | $ | 23,678 |  |  | $ | 664 |  |  | $ | (31 | ) |  | $ | 24,311 |
December 31, 2011 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Obligations of states and political subdivisions |  | $ | 22,825 |  |  | $ | 558 |  |  | $ | (559 | ) |  | $ | 22,824 |
Agency mortgage-backed securities, residential |  |  | 23 |  |  |  | ---- |  |  |  | ---- |  |  |  | 23 |
Total securities |  | $ | 22,848 |  |  | $ | 558 |  |  | $ | (559 | ) |  | $ | 22,847 |
Investments Classified by Contractual Maturity Date [Table Text Block] |
|  | Available for Sale |  |  | Held to Maturity |
Debt Securities: |  | Amortized Cost |  |  | Estimated Fair Value |  |  | Amortized Cost |  |  | Estimated Fair Value |
Due in one year or less |  | $ | ---- |  |  | $ | ---- |  |  | $ | 420 |  |  | $ | 423 |
Due in over one to five years |  |  | 1,010 |  |  |  | 1,016 |  |  |  | 4,220 |  |  |  | 4,288 |
Due in over five to ten years |  |  | ---- |  |  |  | ---- |  |  |  | 9,648 |  |  |  | 9,889 |
Due after ten years |  |  | ---- |  |  |  | ---- |  |  |  | 9,372 |  |  |  | 9,693 |
Agency mortgage-backed securities, residential |  |  | 99,519 |  |  |  | 102,473 |  |  |  | 18 |  |  |  | 18 |
Total debt securities |  | $ | 100,529 |  |  | $ | 103,489 |  |  | $ | 23,678 |  |  | $ | 24,311 |
Held-to-maturity Securities [Member] |
Schedule of Unrealized Loss on Investments [Table Text Block] |
|  | Less Than 12 Months |  |  | 12 Months or More |  |  | Total |
September 30, 2012 |  | Fair Value |  |  | Unrecognized Loss |  |  | Fair Value |  |  | Unrecognized Loss |  |  | Fair Value |  |  | Unrecognized Loss |
Securities Held to Maturity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Obligations of states and political subdivisions |  | $ | 1,491 |  |  | $ | (10 | ) |  | $ | 1,607 |  |  | $ | (21 | ) |  | $ | 3,098 |  |  | $ | (31 | )
Total held to maturity |  | $ | 1,491 |  |  | $ | (10 | ) |  | $ | 1,607 |  |  | $ | (21 | ) |  | $ | 3,098 |  |  | $ | (31 | )
|  | Less Than 12 Months |  |  | 12 Months or More |  |  | Total |
|  | Fair Value |  |  | Unrecognized Loss |  |  | Fair Value |  |  | Unrecognized Loss |  |  | Fair Value |  |  | Unrecognized L oss |
Securities Held to Maturity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Obligations of states and political subdivisions |  | $ | 664 |  |  | $ | (21 | ) |  | $ | 3,557 |  |  | $ | (538 | ) |  | $ | 4,221 |  |  | $ | (559 | )
Total held to maturity |  | $ | 664 |  |  | $ | (21 | ) |  | $ | 3,557 |  |  | $ | (538 | ) |  | $ | 4,221 |  |  | $ | (559 | )
Available-for-sale Securities [Member] |
Schedule of Unrealized Loss on Investments [Table Text Block] |
|  | Less Than 12 Months |  |  | 12 Months or More |  |  | Total |
December 31, 2011 |  | Fair Value |  |  | Unrealized Loss |  |  | Fair Value |  |  | Unrealized Loss |  |  | Fair Value |  |  | Unrealized Loss |
Securities Available for Sale |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agency mortgage-backed securities, residential |  | $ | 7,621 |  |  | $ | (12 | ) |  | $ | ---- |  |  | $ | ---- |  |  | $ | 7,621 |  |  | $ | (12 | )
Total available for sale |  | $ | 7,621 |  |  | $ | (12 | ) |  | $ | ---- |  |  | $ | ---- |  |  | $ | 7,621 |  |  | $ | (12 | )

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- Definition Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27290-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27198-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 03-1 -Paragraph 21 -Subparagraph a, b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62557-112803 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number FAS115-1/124-1 -Paragraph 17 -Subparagraph a, b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27337-111563 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 19, 20, 21 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27161-111563 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62586-112803 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27357-111563 + Details
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