(9) Note Payable	3 Months Ended
Mar. 28, 2020
Debt Disclosure [Abstract]
(9) Note Payable	(9) Note Payable In March 2020, the company acquired a Sonoscan ultrasound microscope for a price of $208. The full amount was financed through a 5 year note payable with Crest Capital Corporation. The note is collateralized by the microscope and is being paid in monthly installments of $4, consisting of principal plus interest at a rate of 6.47%.

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-URI http://asc.fasb.org/topic&trid=2208564

Name:	us-gaap_DebtDisclosureTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration