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Cash and due from banks (Details) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
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Cash and due from banks |  |
Required reserve balances | $ 22,651 | $ 23,800

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- References No definition available. + Details
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Balance Type: | na
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- Definition Amount of cash subject to withdrawal restrictions, restricted deposits held as compensating balances, and cash and securities segregated in compliance with regulations (such as cash deposited in a special reserve account for the exclusive benefit of customers). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 305 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6478312&loc=d3e61473-112792 + Details
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Balance Type: | debit
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