Amount of expense related to estimated loss from loan and lease transactions.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.11)
-URI http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524

Name:	us-gaap_ProvisionForLoanAndLeaseLosses
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Convertible Notes Receivable - Textual (Details) - USD ($)	3 Months Ended
	Mar. 28, 2020	Dec. 31, 2019	May 31, 2018
Loans And Leases Receivable Disclosure [Line Items]
Convertible notes receivable	$ 0	$ 3,000,000
Convertible Loan Agreement [Member] \| Simax Precision Technologies Limited [Member]
Loans And Leases Receivable Disclosure [Line Items]
Funds available in multiple promissory notes			$ 15,000,000
Convertible notes rate of interest			4.25%
Settlement Agreement [Member] \| Simax Precision Technologies Limited [Member]
Loans And Leases Receivable Disclosure [Line Items]
Convertible notes receivable	5,000,000
Settlement of convertible notes receivable	2,848,000
Convertible notes receivable, reserve amount	$ 2,152,000