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Deposits (FY) (Details Textual) - USD ($) | Dec. 31, 2017 | Dec. 31, 2016
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Time Deposits Maturity [Line Items] |  |
Time deposits of 250,000 or more | $ 171,529,000 | $ 123,053,000
Fair value adjustments to time deposits | 1,092,456 | 303,981
Deposit liabilities reclassified as loans receivable | 155,000 | 76,380
Related Party [Member] |  |
Time Deposits Maturity [Line Items] |  |
Related party deposit liabilities | $ 16,700,000 | $ 15,100,000

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- Definition Amount of fair value adjustments to time deposits as a result of the business combination. + References No definition available. + Details
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- Definition The aggregate amount of domestic and foreign time deposit liabilities (including certificates of deposits, individual retirement accounts and open accounts) in denominations of $250,000 or more. + References No definition available. + Details
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- References No definition available. + Details
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- Definition Amount of deposits held by the entity that have been reclassified as loan balances receivable, for example, but not limited to, overdrafts receivable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 405 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=50488274&loc=d3e64164-112818 + Details
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- Definition Amount of deposits held by the entity for a related party (entity, shareholder, employee). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(k)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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