Concentration of Credit Risk	12 Months Ended
Dec. 31, 2020
Risks and Uncertainties [Abstract]
Concentration Risk Disclosure [Text Block]	Note 8—Concentration of Credit Risk Financial instruments that subject the Company to concentration of credit risk are cash and cash equivalents and accounts receivable. Cash equivalents consist principally of short-term money market funds. These instruments are short-term in nature and bear minimal risk. The Company performs ongoing credit evaluations of its customers’ financial conditions, but does not require collateral to support domestic customer accounts receivable. For goods shipped FOB Hong Kong or China, the Company may require irrevocable letters of credit from the customer or purchase various forms of credit insurance.

The entire disclosure for any concentrations existing at the date of the financial statements that make an entity vulnerable to a reasonably possible, near-term, severe impact. This disclosure informs financial statement users about the general nature of the risk associated with the concentration, and may indicate the percentage of concentration risk as of the balance sheet date.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-URI http://asc.fasb.org/topic&trid=2134479

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