Summary of Significant Accounting Policies - Revenue Recognition (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disaggregation of Revenue [Line Items]
Net sales	$ 94,526,000	$ 84,737,000	$ 170,199,000	$ 148,820,000
Cost of goods sold	66,428,000	55,830,000	120,475,000	102,022,000
Selling expenses
Disaggregation of Revenue [Line Items]
Cost of goods sold	7,008,000	4,307,000	12,491,000	8,065,000
National
Disaggregation of Revenue [Line Items]
Net sales	22,310,000	16,168,000	40,599,000	31,666,000
Distributors
Disaggregation of Revenue [Line Items]
Net sales	50,967,000	44,526,000	90,977,000	78,460,000
Online
Disaggregation of Revenue [Line Items]
Net sales	13,703,000	11,258,000	25,146,000	17,544,000
Retail
Disaggregation of Revenue [Line Items]
Net sales	$ 7,546,000	$ 12,785,000	$ 13,477,000	$ 21,150,000