The Total risk based capital ratio (total capital divided by risk weighted assets) required to be categorized as "well capitalized", in the regulatory framework for prompt corrective action.

Reference 1: 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=35709795&loc=SL5958568-112826

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The amount of Tier 1 Leverage Capital required to be categorized as well capitalized divided by average assets as defined in the regulatory framework for prompt corrective action.

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The Tier 1 capital ratio (Tier 1 capital divided by risk weighted assets) required to be categorized as "well capitalized" under the regulatory framework for prompt corrective action.

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Capital Infusion

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Common Equity Tier One Risk Based Capital To Risk Weighted Assets

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Number Of Banks Infused

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Regulatory Matters (Narrative) (Detail) $ in Millions	Apr. 29, 2016 USD ($)	Mar. 31, 2016 Rate
Subsequent Event [Line Items]
Capital Required to be Well Capitalized to Risk Weighted Assets \| Rate		10.00%
Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets \| Rate		8.00%
Common Equity Tier One Risk Based Capital To Risk Weighted Assets \| Rate		6.50%
Tier One Leverage Capital Required to be Well Capitalized to Average Assets \| Rate		5.00%
Subsequent Event [Member]
Subsequent Event [Line Items]
Number Of Banks Infused	4
Beverly Bank \| Subsequent Event [Member]
Subsequent Event [Line Items]
Capital Infusion \| $	$ 13.0
Schaumburg Bank \| Subsequent Event [Member]
Subsequent Event [Line Items]
Capital Infusion \| $	10.3
Barrington Bank \| Subsequent Event [Member]
Subsequent Event [Line Items]
Capital Infusion \| $	5.0
Old Plank Trail Bank \| Subsequent Event [Member]
Subsequent Event [Line Items]
Capital Infusion \| $	$ 4.0