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Note 4 - Loan Receivables and Allowance for Loan Losses (Details) - Allowance for Loan Losses to Loan Portfolio Segment - USD ($) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2015 | Dec. 31, 2014
Allowance for loan losses: |  |  |  |  |
Balance, beginning of period | $ 4,924 | $ 5,681 | $ 6,016 |  |
Balance, end of period | 5,242 | 4,924 | 5,681 |  |
Allowance for Loan Losses: individually evaluated for impairment |  |  |  | $ 3 | $ 7
Allowance for Loan Losses: collectively evaluated for impairment |  |  |  | 5,239 | 4,917
Total Allowance for Loan Losses | 5,242 | 4,924 | 5,681 | 5,242 | 4,924
December 31, 2015 |  |  |  |  |
Total Loans ending balance |  |  |  | 484,369 | 476,908
Loans: individually evaluated for impairment |  |  |  | 12,851 | 11,724
Loans: collectively evaluated for impairment |  |  |  | 471,518 | 465,184
Allowance for loan losses: |  |  |  |  |
Loans charged-off | (32) | (867) | (1,668) |  |
Recoveries of loans previously charged-off | 100 | 110 | 362 |  |
Provision for loan losses | 250 | 0 | 970 |  |
Commercial Portfolio Segment [Member] |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Balance, beginning of period | 1,918 | 2,285 | 942 |  |
Balance, end of period | 1,027 | 1,918 | 2,285 |  |
Allowance for Loan Losses: individually evaluated for impairment |  |  |  | 0 | 0
Allowance for Loan Losses: collectively evaluated for impairment |  |  |  | 1,027 | 1,918
Total Allowance for Loan Losses | 1,918 | 1,918 | 2,285 | 1,027 | 1,918
December 31, 2015 |  |  |  |  |
Total Loans ending balance |  |  |  | 59,752 | 53,973
Loans: individually evaluated for impairment |  |  |  | 0 | 2
Loans: collectively evaluated for impairment |  |  |  | 59,752 | 53,971
Allowance for loan losses: |  |  |  |  |
Loans charged-off | 0 | (49) | (63) |  |
Recoveries of loans previously charged-off | 49 | 6 | 4 |  |
Provision for loan losses | (940) | (324) | 1,402 |  |
Commercial Real Estate Portfolio Segment [Member] |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Balance, beginning of period | 1,419 | 1,585 | 3,509 |  |
Balance, end of period | 2,164 | 1,419 | 1,585 |  |
Allowance for Loan Losses: individually evaluated for impairment |  |  |  | 0 | 0
Allowance for Loan Losses: collectively evaluated for impairment |  |  |  | 2,164 | 1,419
Total Allowance for Loan Losses | 1,419 | 1,419 | 1,585 | 2,164 | 1,419
December 31, 2015 |  |  |  |  |
Total Loans ending balance |  |  |  | 273,850 | 254,505
Loans: individually evaluated for impairment |  |  |  | 7,745 | 7,398
Loans: collectively evaluated for impairment |  |  |  | 266,105 | 247,107
Allowance for loan losses: |  |  |  |  |
Loans charged-off | 0 | (297) | (403) |  |
Recoveries of loans previously charged-off | 35 | 60 | 335 |  |
Provision for loan losses | 710 | 71 | (1,856) |  |
Construction Portfolio Segment [Member] |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Balance, beginning of period | 63 | 260 | 311 |  |
Balance, end of period | 486 | 63 | 260 |  |
Allowance for Loan Losses: individually evaluated for impairment |  |  |  | 0 | 0
Allowance for Loan Losses: collectively evaluated for impairment |  |  |  | 486 | 63
Total Allowance for Loan Losses | 63 | 63 | 260 | 486 | 63
December 31, 2015 |  |  |  |  |
Total Loans ending balance |  |  |  | 15,551 | 3,096
Loans: individually evaluated for impairment |  |  |  | 0 | 0
Loans: collectively evaluated for impairment |  |  |  | 15,551 | 3,096
Allowance for loan losses: |  |  |  |  |
Loans charged-off | 0 | (260) | (205) |  |
Recoveries of loans previously charged-off | 0 | 10 | 20 |  |
Provision for loan losses | 423 | 53 | 134 |  |
Construction to Permanent Portfolio Segment [Member] |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Balance, beginning of period | 215 | 25 | 19 |  |
Balance, end of period | 123 | 215 | 25 |  |
Allowance for Loan Losses: individually evaluated for impairment |  |  |  | 0 | 0
Allowance for Loan Losses: collectively evaluated for impairment |  |  |  | 123 | 215
Total Allowance for Loan Losses | 215 | 215 | 25 | 123 | 215
December 31, 2015 |  |  |  |  |
Total Loans ending balance |  |  |  | 4,880 | 10,627
Loans: individually evaluated for impairment |  |  |  | 0 | 0
Loans: collectively evaluated for impairment |  |  |  | 4,880 | 10,627
Allowance for loan losses: |  |  |  |  |
Loans charged-off | 0 | 0 | 0 |  |
Recoveries of loans previously charged-off | 5 | 0 | 0 |  |
Provision for loan losses | (97) | 190 | 6 |  |
Residential Portfolio Segment [Member] |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Balance, beginning of period | 831 | 795 | 897 |  |
Balance, end of period | 546 | 831 | 795 |  |
Allowance for Loan Losses: individually evaluated for impairment |  |  |  | 0 | 0
Allowance for Loan Losses: collectively evaluated for impairment |  |  |  | 546 | 831
Total Allowance for Loan Losses | 831 | 831 | 795 | 546 | 831
December 31, 2015 |  |  |  |  |
Total Loans ending balance |  |  |  | 82,815 | 108,543
Loans: individually evaluated for impairment |  |  |  | 4,556 | 3,764
Loans: collectively evaluated for impairment |  |  |  | 78,259 | 104,779
Allowance for loan losses: |  |  |  |  |
Loans charged-off | (16) | (195) | (919) |  |
Recoveries of loans previously charged-off | 0 | 30 | 1 |  |
Provision for loan losses | (269) | 201 | 816 |  |
Consumer Portfolio Segment [Member] |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Balance, beginning of period | 478 | 534 | 217 |  |
Balance, end of period | 677 | 478 | 534 |  |
Allowance for Loan Losses: individually evaluated for impairment |  |  |  | 3 | 7
Allowance for Loan Losses: collectively evaluated for impairment |  |  |  | 674 | 471
Total Allowance for Loan Losses | 478 | 478 | 534 | 677 | 478
December 31, 2015 |  |  |  |  |
Total Loans ending balance |  |  |  | 47,521 | 46,164
Loans: individually evaluated for impairment |  |  |  | 550 | 560
Loans: collectively evaluated for impairment |  |  |  | 46,971 | 45,604
Allowance for loan losses: |  |  |  |  |
Loans charged-off | (16) | (66) | (78) |  |
Recoveries of loans previously charged-off | 11 | 4 | 3 |  |
Provision for loan losses | 204 | 6 | 392 |  |
Unallocated Financing Receivables [Member] |  |  |  |  |
Allowance for loan losses: |  |  |  |  |
Balance, beginning of period | 0 | 197 | 121 |  |
Balance, end of period | 219 | 0 | 197 |  |
Allowance for Loan Losses: individually evaluated for impairment |  |  |  | 0 | 0
Allowance for Loan Losses: collectively evaluated for impairment |  |  |  | 219 | 0
Total Allowance for Loan Losses | 0 | 0 | 197 | 219 | 0
December 31, 2015 |  |  |  |  |
Total Loans ending balance |  |  |  | 0 | 0
Loans: individually evaluated for impairment |  |  |  | 0 | 0
Loans: collectively evaluated for impairment |  |  |  | $ 0 | $ 0
Allowance for loan losses: |  |  |  |  |
Loans charged-off | 0 | 0 | 0 |  |
Recoveries of loans previously charged-off | 0 | 0 | 0 |  |
Provision for loan losses | $ 219 | $ (197) | $ 76 |  |

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- 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=49124121&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=49124121&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 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=49124121&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=49124121&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=49124121&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 30 -Section 50 -Paragraph 2 -Subparagraph (b)(1)(ii) -URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section L -Subsection 1 + Details
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