Product Revenue Detail (Details) $ in Thousands	3 Months Ended
Mar. 31, 2020 USD ($) distribution_channel	Mar. 31, 2019 USD ($)
Disaggregation of Revenue [Line Items]
Number of primary distribution channels \| distribution_channel	2
Net sales	$ 61,736	$ 66,555
Direct Customers
Disaggregation of Revenue [Line Items]
Net sales	59,896	64,542
Distributors
Disaggregation of Revenue [Line Items]
Net sales	$ 1,840	$ 2,013

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045

Name:	us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration