Segment Results and Concentrations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Net sales, gross profit and gross margin by segment [Abstract]
Net sales	$ 207,456	$ 202,507	$ 204,168
Gross profit	$ 65,258	$ 59,599	$ 62,196
Gross margin (in hundredths)	31.50%	29.40%	30.50%
Beer Related | Operating Segments
Net sales, gross profit and gross margin by segment [Abstract]
Net sales	$ 179,830	$ 173,657	$ 176,343
Gross profit	$ 63,412	$ 55,667	$ 58,610
Gross margin (in hundredths)	35.30%	32.10%	33.20%
Pubs | Operating Segments
Net sales, gross profit and gross margin by segment [Abstract]
Net sales	$ 27,626	$ 28,850	$ 27,825
Gross profit	$ 1,846	$ 3,932	$ 3,586
Gross margin (in hundredths)	6.70%	13.60%	12.90%
Sales
Sales and receivables from Anheuser-Busch, LLC [Abstract]
Anheuser-Busch, LLC (in hundredths)	74.90%	77.80%	81.20%
Accounts Receivable
Sales and receivables from Anheuser-Busch, LLC [Abstract]
Anheuser-Busch, LLC (in hundredths)	74.40%	66.60%