Segment Results and Concentrations (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	12 Months Ended
Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Net sales, gross profit and gross margin by segment [Abstract]
Net sales	$ 61,823	$ 60,550	$ 109,310	$ 104,852
Gross profit	$ 22,127	$ 18,329	$ 37,198	$ 30,998
Gross margin (in hundredths)	35.80%	30.30%	34.00%	29.60%
Beer Related \| Operating Segments
Net sales, gross profit and gross margin by segment [Abstract]
Net sales	$ 55,722	$ 53,435	$ 97,198	$ 91,286
Gross profit	$ 21,942	$ 17,620	$ 36,652	$ 29,890
Gross margin (in hundredths)	39.40%	33.00%	37.70%	32.70%
Brewpubs \| Operating Segments
Net sales, gross profit and gross margin by segment [Abstract]
Net sales	$ 6,101	$ 7,115	$ 12,112	$ 13,566
Gross profit	$ 185	$ 709	$ 546	$ 1,108
Gross margin (in hundredths)	3.00%	10.00%	4.50%	8.20%
Sales
Sales and receivables from Anheuser-Busch, LLC [Abstract]
Percentage of concentration	77.90%	76.80%	77.30%	74.20%
Accounts Receivable
Sales and receivables from Anheuser-Busch, LLC [Abstract]
Percentage of concentration			71.90%		74.40%

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- Definition

Gross margin is entity's total sales revenue minus its cost of goods sold, divided by the total sales revenue, expressed as percentage.

+ References

No definition available.

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
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-URI http://asc.fasb.org/extlink&oid=84177426&loc=d3e6351-108592

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- Definition

Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
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-Section S99
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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

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-Publisher FASB
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-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
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