Revenues (Tables)

9 Months Ended

Sep. 30, 2019

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

Our revenues from contracts with customers disaggregated by revenue source, excluding sales-based taxes, were as follows (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018
Product sales	$	59,323	$	88,068	$	195,781	$	269,288
Extended warranties and services	993		1,611		4,630		6,830
Other(1)	1,392		1,378		4,701		5,250
Net sales	$	61,708	$	91,057	$	205,112	$	281,368

⁽¹⁾ Other revenue is primarily freight and delivery, royalty income and subscription revenue.

Our revenues disaggregated by geographic region, based on ship-to address, were as follows (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018
United States	$	50,447	$	81,423	$	169,532	$	250,502
Canada	5,649		4,306		17,135		13,372
All other	5,612		5,328		18,445		17,494
Net sales	$	61,708	$	91,057	$	205,112	$	281,368

Contract with Customer, Asset and Liability [Table Text Block]

The following table provides information about our liabilities from contracts with customers, primarily customer deposits and deferred revenue, all of which are short-term in nature. The revenue recognized from contract liabilities and the remaining balances are presented in accrued liabilities and are shown below (in thousands):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2019			2018			2019			2018
Balance, beginning of period	$	562		$	748		$	816		$	1,084
Cash additions	611			354			1,123			1,347
Revenue recognition	(279		)	(227		)	(1,045		)	(1,556		)
Balance, end of period	$	894		$	875		$	894		$	875