Covid-19 Pandemic (Narrative) (Details) - USD ($)	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2020
Singapore [Member] \| Jobs Support Program [Member] \| Reduced Employee Expenses [Member]
Effects on Future Earnings and Cash Flows Resulting from Exit Plan [Line Items]
Operating expenses	$ 276,000	$ 295,000

Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.

No definition available.

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