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Borrowings and Borrowings Availability (Schedule of debt) (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014
Borrowings | $ 186,394,000 | $ 116,394,000
Weighted average interest rate | 1.14% | 1.05%
FHLB Term Note 1 [Member] |  |
Maturity date | Jan. 19, 2016 | Jan. 29, 2015
Borrowings | $ 30,000,000 | $ 50,000,000
Effective percentage | 0.41% | 0.20%
FHLB Term Note 2 [Member] |  |
Maturity date | Jan. 29, 2016 | Sep. 30, 2015
Borrowings | $ 50,000,000 | $ 20,000,000
Effective percentage | 0.38% | 0.44%
FHLB Term Note 3 [Member] |  |
Maturity date | Dec. 27, 2016 |
Borrowings | $ 20,000,000 |
Effective percentage | 0.76% |
FHLB Term Note 4 [Member] |  |
Maturity date | Dec. 26, 2017 |
Borrowings | $ 20,000,000 |
Effective percentage | 1.19% |
FHLB Term Note 5 [Member] |  |
Maturity date | Dec. 24, 2018 |
Borrowings | $ 20,000,000 |
Effective percentage | 1.57% |
Trust Preferred Securities 1 [Member] |  |
Maturity date | Jan. 23, 2034 | Jan. 23, 2034
Issuer | Issued by First Bancorp Capital Trusts II and III, which are unconsolidated subsidiaries of the Company | Issued by First Bancorp Capital Trusts II and III, which are unconsolidated subsidiaries of the Company
Earliest date of call feature | Jan. 23, 2009 | Jan. 23, 2009
Borrowings | $ 20,620,000 | $ 20,620,000
Effective percentage | 3.02% | 2.96%
Variable rate basis spread | 2.70% | 2.70%
Trust Preferred Securities 2 [Member] |  |
Maturity date | Jun. 15, 2036 | Jun. 15, 2036
Issuer | Issued by First Bancorp Capital Trust IV, an unconsolidated subsidiary of the Company | Issued by First Bancorp Capital Trust IV, an unconsolidated subsidiary of the Company
Earliest date of call feature | Jun. 15, 2011 | Jun. 15, 2011
Borrowings | $ 25,774,000 | $ 25,774,000
Effective percentage | 1.90% | 1.65%
Variable rate basis spread | 1.39% | 1.39%

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