4. Stock-Based Compensation (Details 1)	9 Months Ended
Sep. 30, 2018 $ / shares shares
Stock Options Abstract
Beginning Balance \| shares	1,288,000
Options granted \| shares	163,000
Options exercised \| shares	0
Options expired \| shares	(62,500)
Options forfeited \| shares	0
Ending Balance \| shares	1,388,500
Ending Balance, exercisable \| shares	1,220,500
Weighted average price per share, beginning balance \| $ / shares	$ 0.21
Weighted average price per share, granted \| $ / shares	0.45
Weighted average price per share, exercised \| $ / shares	0.00
Weighted average exercise price per share, expired \| $ / shares	0.31
Weighted average exercise price per share, forfeited \| $ / shares	0.00
Weighted average exercise price , ending balance, outstanding \| $ / shares	0.23
Weighted average exercise price, ending balance, exercisable \| $ / shares	$ 0.21
Weighted average remaing contractual life in years	5 years
Weighted average remaining contractual life, exercisable	4 years 6 months

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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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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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

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Number of options outstanding, including both vested and non-vested options.

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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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Number of fully vested and expected to vest exercisable options that may be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest exercisable or convertible options. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for fully vested and expected to vest exercisable or convertible options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Number of share options (or share units) exercised during the current period.

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