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Share-Based Compensation (Detail Narratives) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost related to nonvested share-based compensation arrangements granted	$ 486		$ 486
Weighted-average period over which unrecognized compensation is expected to be recognized			2 years
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 58	$ 43	$ 115	$ 88
Stock options granted			547,500	570,500
Stock options excercise			36,000	0
Stock option excercise value	$ 16		$ 16
Stock options expired			130,500	188,504
Stock options forfeited			48,600
Stock options outstanding, end of period	3,747,400		3,747,400		3,415,000
Weighted average exercise price	$ 0.64		$ 0.64		$ 0.67

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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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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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