v2.4.0.6

Regulatory Capital (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2012
Regulatory Capital [Abstract] |
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block] | As of December 31, 2012 and 2011, the most recent notification from the primary regulators categorized First Mid Bank as well capitalized under the regulatory framework for prompt corrective action. To be categorized as well capitalized, minimum total risk-based, Tier 1 risk-based and Tier 1 leverage ratios must be maintained as set forth in the table below. At December 31, 2012, there are no conditions or events since the most recent notification that management believes have changed this categorization.
| Actual |  | Required Minimum For Capital Adequacy Purposes |  | To Be Well-Capitalized Under Prompt Corrective Action Provisions
| Amount |  | Ratio |  | Amount |  | Ratio |  | Amount |  | Ratio
December 31, 2012 |  |  |  |  |  |  |  |  |  |  |
Total Capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |
Company | $ | 161,799 |  |  | 15.65 | % |  | $ | 82,693 |  |  | > 8.00% |  | N/A |  |  | N/A
First Mid Bank | 143,942 |  |  | 14.04 | % |  | 82,047 |  |  | > 8.00 |  | $ | 102,559 |  |  | > 10.00%
Tier 1 Capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Company | 150,023 |  |  | 14.51 | % |  | 41,346 |  |  | > 4.00 |  | N/A |  |  | N/A
First Mid Bank | 132,166 |  |  | 12.89 | % |  | 41,024 |  |  | > 4.00 |  | 61,535 |  |  | > 6.00
Tier 1 Capital (to average assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Company | 150,023 |  |  | 9.66 | % |  | 62,093 |  |  | > 4.00 |  | N/A |  |  | N/A
First Mid Bank | 132,166 |  |  | 8.56 | % |  | 61,771 |  |  | > 4.00 |  | 77,213 |  |  | > 5.00
December 31, 2011 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Company | $ | 145,006 |  |  | 14.48 | % |  | $ | 80,093 |  |  | > 8.00% |  | N/A |  |  | N/A
First Mid Bank | 127,386 |  |  | 12.83 | % |  | 79,434 |  |  | > 8.00 |  | $ | 99,292 |  |  | > 10.00%
Tier 1 Capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Company | 133,886 |  |  | 13.37 | % |  | 40,046 |  |  | > 4.00 |  | N/A |  |  | N/A
First Mid Bank | 116,266 |  |  | 11.71 | % |  | 39,717 |  |  | > 4.00 |  | 59,575 |  |  | > 6.00
Tier 1 Capital (to average assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Company | 133,886 |  |  | 8.99 | % |  | 59,574 |  |  | > 4.00 |  | N/A |  |  | N/A
First Mid Bank | 116,266 |  |  | 7.85 | % |  | 59,228 |  |  | > 4.00 |  | 74,035 |  |  | > 5.00

X
- Details
Name: | fmbh_RegulatoryCapitalAbstract
Namespace Prefix: | fmbh_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the capital amounts and ratios as of the balance sheet date, indicating whether the entity or entities are in compliance with regulatory capital requirements, by entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1G -URI http://asc.fasb.org/extlink&oid=7881181&loc=SL5958577-112826 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Audit and Accounting Guide (AAG) -Number AAG-DEP -Paragraph 18 -IssueDate 2006-05-01 -Chapter 17 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1H -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=7881181&loc=d3e65071-112826 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=7881181&loc=SL5958568-112826 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=7881181&loc=SL5958570-112826 + Details
Name: | us-gaap_ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration