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Note 3 - Allowance for Loan Losses to Loan Portfolio Segment (Details) - USD ($) | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Dec. 31, 2015
Commercial Portfolio Segment [Member] |  |  |  |  |  |
Beginning Balance | $ 1,083,000 | $ 1,297,000 | $ 1,027,000 | $ 1,918,000 |  |
Charge-offs | 0 |  | 0 |  |  |
Recoveries | 3,000 | 14,000 | 12,000 | 30,000 |  |
Provision | 2,314,000 | (329,000) | 2,361,000 | (966,000) |  |
Ending Balance | 3,400,000 | 982,000 | 3,400,000 | 982,000 |  |
Ending balance: individually evaluated for impairment |  |  |  |  | $ 2,977,000 |
Ending balance: collectively evaluated for impairment |  |  |  |  | 423,000 | $ 1,027,000
Total allowance for loan losses | 1,083,000 | 1,297,000 | 3,400,000 | 982,000 | 3,400,000 | 1,027,000
Loans and Leases Receivable, Gross |  |  |  |  | 71,658,000 | 59,752,000
Ending balance: individually evaluated for impairment |  |  |  |  | 3,272,000 |
Ending balance: collectively evaluated for impairment |  |  |  |  | 68,386,000 | 59,752,000
Commercial Real Estate Portfolio Segment [Member] |  |  |  |  |  |
Beginning Balance | 1,943,000 | 2,024,000 | 1,970,000 | 1,419,000 |  |
Charge-offs | 0 |  | 0 |  |  |
Recoveries | 0 |  | 0 |  |  |
Provision | 352,000 | 121,000 | 325,000 | 726,000 |  |
Ending Balance | 2,295,000 | 2,145,000 | 2,295,000 | 2,145,000 |  |
Ending balance: individually evaluated for impairment |  |  |  |  | 0 |
Ending balance: collectively evaluated for impairment |  |  |  |  | 2,295,000 | 1,970,000
Total allowance for loan losses | 1,943,000 | 2,024,000 | 2,295,000 | 2,145,000 | 2,295,000 | 1,970,000
Loans and Leases Receivable, Gross |  |  |  |  | 270,003,000 | 245,828,000
Ending balance: individually evaluated for impairment |  |  |  |  | 6,526,000 | 7,745,000
Ending balance: collectively evaluated for impairment |  |  |  |  | 263,477,000 | 238,083,000
Construction Portfolio Segment [Member] |  |  |  |  |  |
Beginning Balance | 650,000 | 222,000 | 486,000 | 63,000 |  |
Charge-offs | 0 |  | 0 |  |  |
Recoveries | 0 |  | 0 |  |  |
Provision | (481,000) | 53,000 | (317,000) | 212,000 |  |
Ending Balance | 169,000 | 275,000 | 169,000 | 275,000 |  |
Ending balance: individually evaluated for impairment |  |  |  |  | 0 |
Ending balance: collectively evaluated for impairment |  |  |  |  | 169,000 | 486,000
Total allowance for loan losses | 650,000 | 222,000 | 169,000 | 275,000 | 169,000 | 486,000
Loans and Leases Receivable, Gross |  |  |  |  | 26,094,000 | 15,551,000
Ending balance: individually evaluated for impairment |  |  |  |  | 0 |
Ending balance: collectively evaluated for impairment |  |  |  |  | 26,094,000 | 15,551,000
Construction to Permanent Portfolio Segment [Member] |  |  |  |  |  |
Beginning Balance | 121,000 | 191,000 | 123,000 | 215,000 |  |
Charge-offs | 0 |  | 0 |  |  |
Recoveries | 0 |  | 0 | 5,000 |  |
Provision | 24,000 | (41,000) | 22,000 | (70,000) |  |
Ending Balance | 145,000 | 150,000 | 145,000 | 150,000 |  |
Ending balance: individually evaluated for impairment |  |  |  |  | 0 |
Ending balance: collectively evaluated for impairment |  |  |  |  | 145,000 | 123,000
Total allowance for loan losses | 121,000 | 191,000 | 145,000 | 150,000 | 145,000 | 123,000
Loans and Leases Receivable, Gross |  |  |  |  | 4,229,000 | 4,880,000
Ending balance: individually evaluated for impairment |  |  |  |  | 0 |
Ending balance: collectively evaluated for impairment |  |  |  |  | 4,229,000 | 4,880,000
Residential Portfolio Segment [Member] |  |  |  |  |  |
Beginning Balance | 624,000 | 730,000 | 740,000 | 831,000 |  |
Charge-offs | 0 |  | (4,000) | (3,000) |  |
Recoveries | 1,000 |  | 1,000 |  |  |
Provision | 22,000 | 102,000 | (90,000) | 4,000 |  |
Ending Balance | 647,000 | 832,000 | 647,000 | 832,000 |  |
Ending balance: individually evaluated for impairment |  |  |  |  | 0 |
Ending balance: collectively evaluated for impairment |  |  |  |  | 647,000 | 740,000
Total allowance for loan losses | 624,000 | 730,000 | 647,000 | 832,000 | 647,000 | 740,000
Loans and Leases Receivable, Gross |  |  |  |  | 104,746,000 | 110,837,000
Ending balance: individually evaluated for impairment |  |  |  |  | 4,515,000 | 4,556,000
Ending balance: collectively evaluated for impairment |  |  |  |  | 100,231,000 | 106,281,000
Consumer Portfolio Segment [Member] |  |  |  |  |  |
Beginning Balance | 609,000 | 711,000 | 677,000 | 478,000 |  |
Charge-offs | (1,000) |  | (2,000) | (7,000) |  |
Recoveries | 0 | 1,000 | 1,000 | 9,000 |  |
Provision | (77,000) | 14,000 | (145,000) | 246,000 |  |
Ending Balance | 531,000 | 726,000 | 531,000 | 726,000 |  |
Ending balance: individually evaluated for impairment |  |  |  |  | 2,000 | 3,000
Ending balance: collectively evaluated for impairment |  |  |  |  | 529,000 | 674,000
Total allowance for loan losses | 609,000 | 711,000 | 531,000 | 726,000 | 531,000 | 677,000
Loans and Leases Receivable, Gross |  |  |  |  | 51,924,000 | 47,521,000
Ending balance: individually evaluated for impairment |  |  |  |  | 546,000 | 550,000
Ending balance: collectively evaluated for impairment |  |  |  |  | 51,378,000 | 46,971,000
Unallocated Financing Receivables [Member] |  |  |  |  |  |
Beginning Balance | 217,000 | 18,000 | 219,000 |  |  |
Charge-offs | 0 |  | 0 |  |  |
Recoveries | 0 |  | 0 |  |  |
Provision | (195,000) | 80,000 | (197,000) | 98,000 |  |
Ending Balance | 22,000 | 98,000 | 22,000 | 98,000 |  |
Ending balance: individually evaluated for impairment |  |  |  |  | 0 |
Ending balance: collectively evaluated for impairment |  |  |  |  | 22,000 | 219,000
Total allowance for loan losses | 217,000 | 18,000 | 22,000 | 98,000 | 22,000 | 219,000
Loans and Leases Receivable, Gross |  |  |  |  | 0 |
Ending balance: individually evaluated for impairment |  |  |  |  | 0 |
Ending balance: collectively evaluated for impairment |  |  |  |  | 0 |
Beginning Balance | 5,247,000 | 5,193,000 | 5,242,000 | 4,924,000 |  |
Charge-offs | (1,000) |  | (6,000) | (10,000) |  |
Recoveries | 4,000 | 15,000 | 14,000 | 44,000 |  |
Provision | 1,959,000 |  | 1,959,000 | 250,000 |  |
Ending Balance | 7,209,000 | 5,208,000 | 7,209,000 | 5,208,000 |  |
Ending balance: individually evaluated for impairment |  |  |  |  | 2,979,000 | 3,000
Ending balance: collectively evaluated for impairment |  |  |  |  | 4,230,000 | 5,239,000
Total allowance for loan losses | $ 7,209,000 | $ 5,193,000 | $ 7,209,000 | $ 5,208,000 | 7,209,000 | 5,242,000
Loans and Leases Receivable, Gross |  |  |  |  | 528,654,000 | 484,369,000
Ending balance: individually evaluated for impairment |  |  |  |  | 14,859,000 | 12,851,000
Ending balance: collectively evaluated for impairment |  |  |  |  | $ 513,795,000 | $ 471,518,000

X
- Definition Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(4) -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524 + Details
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- Definition Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524 + Details
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- Definition The balance of financing receivables that were collectively evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524 + Details
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- Definition Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB Topic 6.L.1) -URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74567-122707 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b)(1)(ii) -URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544 + Details
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