XML 61 R48.htm IDEA: XBRL DOCUMENT
v3.19.2

Business Combinations Business Combinations Narrative (Details) |  |  | 6 Months Ended |
--- | --- | --- | --- | ---
Nov. 15, 2018 USD ($) $ / shares shares | May 01, 2018 USD ($) $ / shares shares | Jun. 30, 2019 USD ($) $ / shares | Jun. 30, 2018 USD ($) | Dec. 31, 2018 $ / shares
Business Acquisition [Line Items] |  |  |  |  |
Common stock, par value (in dollars per share) | $ / shares |  |  | $ 4 |  | $ 4
SCB Bancorp [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Percent Of Acquiree Outstanding Stock Being Acquired In Merger | 1.00 |  |  |  |
Par Value Of Outstanding Stock Being Acquired In Merger | $ / shares | $ 7.50 |  |  |  |
Right To Receive Value of Cash Option | $ / shares | $ 307.93 |  |  |  |
Aggregate Total Of Cash Paid In Business Combination | $ 19,046,000 |  |  |  |
Right To Receive Value Of Share Option | shares | 8.0228 |  |  |  |
Dividends, Cash | $ 25,000,000 |  |  |  |
Total assets acquired | 478,629,000 |  |  |  |
Business Combination, Recognized Identifiable Assets and Liabilities Assumed, Loans | 247,561,000 |  |  |  |
Deposits | 347,971,000 |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Premises And Equipment | $ 11,068,000 |  |  |  |
Shares, Issued | shares | 1,330,571 |  |  |  |
First BancTrust [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Percent Of Acquiree Outstanding Stock Being Acquired In Merger |  | 1.00 |  |  |
Par Value Of Outstanding Stock Being Acquired In Merger | $ / shares |  | $ 0.01 |  |  |
Right To Receive Value of Cash Option | $ / shares |  | $ 5.00 |  |  |
Aggregate Total Of Cash Paid In Business Combination |  | $ 10,275,000 | $ 0 | $ 10,275,000 |
Right To Receive Value Of Share Option | shares |  | 0.800 |  |  |
Total assets acquired |  | $ 501,285,000 | $ 0 | $ 501,285,000 |
Business Combination, Recognized Identifiable Assets and Liabilities Assumed, Loans |  | 363,281,000 |  |  |
Deposits |  | 385,624,000 |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Premises And Equipment |  | 9,437,000 |  |  |
Goodwill, Acquired During Period |  | $ 26,491,000 |  |  |
Shares, Issued | shares |  | 1,643,900 |  |  |
Shares Issued, Price Per Share | $ / shares |  | $ 37.32 |  |  |
Acquired Book Value [Member] | SCB Bancorp [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Total assets acquired | $ 457,324,000 |  |  |  |
Business Combination, Recognized Identifiable Assets and Liabilities Assumed, Loans | 255,429,000 |  |  |  |
Deposits | 348,314,000 |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Premises And Equipment | $ 10,115,000 |  |  |  |
Acquired Book Value [Member] | First BancTrust [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Total assets acquired |  | $ 474,853,000 |  |  |
Business Combination, Recognized Identifiable Assets and Liabilities Assumed, Loans |  | 371,156,000 |  |  |
Deposits |  | 384,323,000 |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Premises And Equipment |  | $ 10,126,000 |  |  |

X
- Definition Portion of business acquisition purchase price paid in cash + References No definition available. + Details
Name: | fmbh_AggregateTotalOfCashPaidInBusinessCombination
Namespace Prefix: | fmbh_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Business Combination: Approximate Deposits to be acquired + References No definition available. + Details
Name: | fmbh_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedDeposits
Namespace Prefix: | fmbh_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Premises And Equipment + References No definition available. + Details
Name: | fmbh_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedPremisesAndEquipment
Namespace Prefix: | fmbh_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Approximate amount of loans to acquired in Business Combination + References No definition available. + Details
Name: | fmbh_BusinessCombinationRecognizedIdentifiableAssetsandLiabilitiesAssumedLoans
Namespace Prefix: | fmbh_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Par Value Of Outstanding Stock Being Acquired In Merger + References No definition available. + Details
Name: | fmbh_ParValueOfOutstandingStockBeingAcquiredInMerger
Namespace Prefix: | fmbh_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percent Of Acquiree Outstanding Stock Being Acquired In Merger + References No definition available. + Details
Name: | fmbh_PercentOfAcquireeOutstandingStockBeingAcquiredInMerger
Namespace Prefix: | fmbh_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share option right to receive - exchange value per acquiree share held + References No definition available. + Details
Name: | fmbh_RightToReceiveValueOfShareOption
Namespace Prefix: | fmbh_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Cash option right to receive - exchange value per acquiree share held + References No definition available. + Details
Name: | fmbh_RightToReceiveValueofCashOption
Namespace Prefix: | fmbh_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_BusinessAcquisitionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of assets acquired at the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
Name: | us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Face amount or stated value per share of common stock. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_CommonStockParOrStatedValuePerShare
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of paid and unpaid cash dividends declared for classes of stock, for example, but not limited to, common and preferred. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 405 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6957935&loc=d3e64057-112817 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
Name: | us-gaap_DividendsCash
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 + Details
Name: | us-gaap_GoodwillAcquiredDuringPeriod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Number of shares of stock issued as of the balance sheet date, including shares that had been issued and were previously outstanding but which are now held in the treasury. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 + Details
Name: | us-gaap_SharesIssued
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Per share or per unit amount of equity securities issued. + References No definition available. + Details
Name: | us-gaap_SharesIssuedPricePerShare
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=fmbh_SCBBancorpMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=fmbh_FirstBancTrustMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | fmbh_AcquisitionValueAxis=fmbh_AcquiredBookValueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |