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Loans and Allowance for Loan Losses (Details) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Composition of loan portfolio |  |
Total gross loans, net of deferred fees | $ 1,387,070 | $ 1,163,644
Less - allowance for loan losses | (15,523) | (14,855)
Total loans, net | $ 1,371,547 | $ 1,148,789
Total gross loans, net of deferred fees, (Percentage) | 100.00% | 100.00%
Commercial [Member] |  |
Composition of loan portfolio |  |
Total gross loans, net of deferred fees | $ 906,953 | $ 761,457
Total gross loans, net of deferred fees, (Percentage) | 65.40% | 65.50%
Commercial [Member] | Owner occupied RE [Member] |  |
Composition of loan portfolio |  |
Total gross loans, net of deferred fees | $ 316,818 | $ 285,938
Total gross loans, net of deferred fees, (Percentage) | 22.80% | 24.60%
Commercial [Member] | Non-owner occupied RE [Member] |  |
Composition of loan portfolio |  |
Total gross loans, net of deferred fees | $ 312,798 | $ 239,574
Total gross loans, net of deferred fees, (Percentage) | 22.60% | 20.60%
Commercial [Member] | Business [Member] |  |
Composition of loan portfolio |  |
Total gross loans, net of deferred fees | $ 226,158 | $ 202,552
Total gross loans, net of deferred fees, (Percentage) | 16.30% | 17.40%
Commercial [Member] | Construction [Member] |  |
Composition of loan portfolio |  |
Total gross loans, net of deferred fees | $ 51,179 | $ 33,393
Total gross loans, net of deferred fees, (Percentage) | 3.70% | 2.90%
Consumer [Member] |  |
Composition of loan portfolio |  |
Total gross loans, net of deferred fees | $ 480,117 | $ 402,187
Total gross loans, net of deferred fees, (Percentage) | 34.60% | 34.50%
Consumer [Member] | Other [Member] |  |
Composition of loan portfolio |  |
Total gross loans, net of deferred fees | $ 22,575 | $ 17,572
Total gross loans, net of deferred fees, (Percentage) | 1.60% | 1.50%
Consumer [Member] | Real estate [Member] |  |
Composition of loan portfolio |  |
Total gross loans, net of deferred fees | $ 273,050 | $ 215,588
Total gross loans, net of deferred fees, (Percentage) | 19.70% | 18.50%
Consumer [Member] | Home equity [Member] |  |
Composition of loan portfolio |  |
Total gross loans, net of deferred fees | $ 156,141 | $ 137,105
Total gross loans, net of deferred fees, (Percentage) | 11.30% | 11.80%
Consumer [Member] | Construction [Member] |  |
Composition of loan portfolio |  |
Total gross loans, net of deferred fees | $ 28,351 | $ 31,922
Total gross loans, net of deferred fees, (Percentage) | 2.00% | 2.70%

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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=84173941&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=84173941&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=82894903&loc=d3e15032-111544 + Details
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