Accounts Receivable (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) State	Dec. 31, 2018 USD ($)	Dec. 31, 2017
Accounts Receivable [Abstract]
Percentage of amounts financed under in-house credit programs, as a percent of net sales including sales tax	0.40%	0.50%	0.60%
Duration of no interest credit programs	12 months
Accounts receivable due per scheduled payment [Abstract]
2020	$ 1,641
2021	184
2022	37
2023	20
Allowance for doubtful accounts	$ 160	$ 175
Account write-off period	9 months
Number of states in which accounts receivable originated | State	16
Minimum [Member]
Accounts Receivable [Abstract]
Term of other programs	30 days
Interest rate of other programs	0.00%
Maximum [Member]
Accounts Receivable [Abstract]
Term of other programs	3 years
Interest rate of other programs	21.00%