Related Party Transactions - Operating Leases (Details) - Affiliated entity $ in Thousands	3 Months Ended
Mar. 31, 2018 USD ($) period company	Mar. 31, 2017 USD ($)
Operating lease, Portland, Oregon
Related Party Transaction [Line Items]
Number of limited liability companies \| company	2
Lease payments to lessors [Abstract]
Total lease payments to lessors	$ 41	$ 30
Operating lease, Kona, Hawaii
Lease payments to lessors [Abstract]
Total lease payments to lessors	$ 143	$ 143
Percentage of common stock held by lessor (in hundredths)	5.00%
Sublease contracts expire date	Dec. 31, 2020
Number of additional lease renewal periods \| period	2
Sublease contract option period	5 years

Number Of Additional Lease Renewal Periods

No definition available.

Name:	brew_NumberOfAdditionalLeaseRenewalPeriods
Namespace Prefix:	brew_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Elements represent the number of limited liability entities in which entity leases certain equipment.

+ References

No definition available.

+ Details

Name:	brew_NumberOfLimitedLiabilityEntities
Namespace Prefix:	brew_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Element represent the percentage of common stock share held by lessor.

+ References

No definition available.

+ Details

Name:	brew_PercentageOfCommonStockHeldByLessor
Namespace Prefix:	brew_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Date which lease or group of leases is set to expire, in CCYY-MM-DD format.

+ References

No definition available.

+ Details

Name:	us-gaap_LeaseExpirationDate1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980

+ Details

Name:	us-gaap_LesseeLeasingArrangementsOperatingLeasesRenewalTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

+ Details

Name:	us-gaap_OperatingLeasesRentExpenseAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=77902758&loc=d3e41499-112717

+ Details

Name:	us-gaap_OperatingLeasesRentExpenseNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- 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_RelatedPartyTransactionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_AffiliatedEntityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionAxis=brew_OperatingLeasePortlandOregonMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionAxis=brew_OperatingLeaseKonaHawaiiMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: