Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14435-108349

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 9
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14557-108349

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=115931803&loc=d3e12021-110248

Name:	us-gaap_LossContingencyEstimateOfPossibleLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Contingent Liabilities and Commitments (Details Textual) - USD ($)		12 Months Ended
	Jan. 10, 2020	Dec. 31, 2019	Jan. 21, 2019
Commitments And Contingencies [Line Items]
Purchase commitment, period (in years)		5 years
Inventories
Commitments And Contingencies [Line Items]
Payment of purchase commitment		$ 7,400,000
Threatened Litigation
Commitments And Contingencies [Line Items]
Loss contingency, estimate of possible loss			$ 1,700,000
Settled Litigation \| Subsequent event
Commitments And Contingencies [Line Items]
Litigation settlement, amount awarded to other party	$ 1,750