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Share-Based Compensation (Detail Narratives) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 58	$ 45	$ 146	$ 140
Total unrecognized compensation cost related to nonvested share-based compensation arrangements granted	$ 449		$ 449
Weighted-average period over which unrecognized compensation is expected to be recognized			2 years 2 months 12 days
Proceeds from exercise of stock options			$ 29,000	$ 14,000
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock issued pursuant to option exercises (shares)			63,999	45,334
Stock options granted	0	0	570,500	507,600
Stock options expired			188,504	7,000
Stock options forfeited			31,601	37,568
Stock options outstanding, end of period	3,428,000		3,428,000		3,141,000
Weighted average exercise price	$ 0.67		$ 0.67		$ 0.79

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Unrecognized cost of unvested options awarded to employees as compensation.

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Amount of cash inflow from exercise of stock options granted under share-based compensation arrangement.

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Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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

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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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