No definition available.

Name:	boch_Note7OtherRealEstateOwnedDetailsLineItems
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- Definition

The number of number of foreclosed properties transferred to OREO during the period.

+ References

No definition available.

+ Details

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Namespace Prefix:	boch_
Data Type:	xbrli:integerItemType
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- Definition

The number of real estate properties sold during the period.

+ References

No definition available.

+ Details

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Namespace Prefix:	boch_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

The net gain (loss) resulting from sales and other disposals of other real estate owned, increases (decreases) in the valuation allowance for foreclosed real estate, and write-downs of other real estate owned after acquisition or physical possession.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 225

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-04.14(d))

-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

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Balance Type:	credit
Period Type:	duration

- Definition

Recorded investment of consumer mortgage loan receivables secured by residential real estate properties for which formal foreclosure proceedings are in process.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 35

-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL49126937-111524

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The number of real estate properties owned as of the balance sheet date.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Carrying amount as of the balance sheet date of land and buildings obtained through foreclosure proceedings or defeasance in full or partial satisfaction of a debt arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11

-URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5162-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 45

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4437-111522

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 28

-Article 12

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph c

-Subparagraph Schedule III

-Article 5

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Balance Type:	debit
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- Definition

Revenue from the sale of commercial, industrial, or residential property during the period. This element is more likely than not relevant to an entity for which real estate operations are a principal activity. If real estate operations are not a principal activity, the reporting entity would likely use a gain (loss) on sale of property, plant, or equipment type element.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1(e))

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

+ Details

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Balance Type:	credit
Period Type:	duration

- Definition

Value transferred from mortgage loans to real estate owned (REO) in noncash transactions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 3

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-Topic 230

-SubTopic 10

-Section 50

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4313-108586

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Note 7 - Other Real Estate Owned (Details) $ in Thousands	9 Months Ended
Note 7 - Other Real Estate Owned (Details) $ in Thousands	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)
Note 7 - Other Real Estate Owned (Details) [Line Items]
Real Estate Acquired Through Foreclosure	$ 1,500		$ 502
Number of Foreclosed Properties Transferred to OREO	17
Real Estate Owned, Transfer to Real Estate Owned	$ 3,721	$ 437
Number of Real Estate Properties Sold	12
Sales of Real Estate	$ 2,900
Gains (Losses) on Sales of Other Real Estate	(4)	$ (11)
Mortgage Loans in Process of Foreclosure, Amount	1,100
Residential One to Four Family [Member]
Note 7 - Other Real Estate Owned (Details) [Line Items]
Real Estate Acquired Through Foreclosure	$ 361
Number of Real Estate Properties	4
Nonfarm Nonresidential [Member]
Note 7 - Other Real Estate Owned (Details) [Line Items]
Real Estate Acquired Through Foreclosure	$ 993
Number of Real Estate Properties	6
Undeveloped Commercial Property [Member]
Note 7 - Other Real Estate Owned (Details) [Line Items]
Real Estate Acquired Through Foreclosure	$ 170
Number of Real Estate Properties	1