Segments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Segment profit or loss:
Net revenue from external customers	$ 448,508	$ 415,581
Income from operations	15,019	14,749
Interest income	1,375	1,260
Interest expense	1,989	1,648
Depreciation and amortization	6,664	7,015
Income tax expense	4,942	5,805
Segment assets:
Additions to property, plant and equipment	12,182	8,564
Total assets	252,271	244,992
Wholesale Segment [Member]
Segment profit or loss:
Net revenue from external customers	218,609	190,236
Income from operations	12,071	10,331
Interest income	1,330	1,188
Interest expense	1,667	1,275
Depreciation and amortization	1,175	1,104
Income tax expense	3,337	3,048
Segment assets:
Additions to property, plant and equipment	2,153	759
Total assets	98,493	97,026
Retail Segment [Member]
Segment profit or loss:
Net revenue from external customers	229,899	225,345
Income from operations	2,948	4,418
Interest income	45	72
Interest expense	322	373
Depreciation and amortization	5,489	5,911
Income tax expense	1,605	2,757
Segment assets:
Additions to property, plant and equipment	10,029	7,805
Total assets	$ 153,778	$ 147,966