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Share-Based Compensation (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost related to nonvested share-based compensation arrangements granted	$ 152		$ 152
Weighted-average period over which unrecognized compensation is expected to be recognized			1 year 8 months 12 days
Share-based Payment Arrangement, Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 53	$ 47	$ 95	$ 99
Stock options excercise			143,500	0
Stock options granted			0	535,000
Stock options expired			220,800	438,840
Stock options forfeited			32,500	173,634
Stock options outstanding, end of period	3,049,150	3,636,000	3,049,150	3,636,000
Weighted average exercise price	$ 0.53	$ 0.57	$ 0.53	$ 0.57

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Gross number of share options (or share units) granted during the period.

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