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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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-Publisher FASB
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-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
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- Definition

Amount of cost to be recognized for option under share-based payment arrangement.

+ References

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- Definition

Amount of noncash expense for share-based payment arrangement.

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- Definition

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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-Publisher FASB
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- Definition

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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-Publisher FASB
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- Definition

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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-Publisher FASB
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- Definition

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

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-Publisher FASB
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- Definition

Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

+ References

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- Definition

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

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- Definition

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

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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- Definition

Number of non-vested options forfeited.

+ References

No definition available.

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- Definition

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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- Definition

Total number of shares issued during the period, including shares forfeited, as a result of Restricted Stock Awards.

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Share-Based Compensation (Details Textual) - USD ($)	3 Months Ended		6 Months Ended
Share-Based Compensation (Details Textual) - USD ($)	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Share-Based Compensation (Textual)
Share-based compensation expense	$ 351,000	$ 272,000	$ 791,000	$ 509,000
Options exercisable (in shares)	900,000		900,000
Restricted stock awards granted
Stock Option [Member]
Share-Based Compensation (Textual)
Share-based compensation, option awards, granted			0
Options to purchase stock were forfeited			0
Share-based compensation, options forfeited			0
Share-based compensation, options expired			0
Share-based compensation, options outstanding	30,500,000		30,500,000
Share-based compensation, options outstanding, weighted average exercise price (in dollars per share)	$ 0.147		$ 0.147
Share-based compensation, options outstanding, weighted average remaining contractual term			6 years 1 month 6 days
Options outstanding aggregate intrinsic value	$ 4,484,000		$ 4,484,000
Options exercisable (in shares)	22,075,000		22,075,000
Unrecognized compensation costs related to unvested equity awards, net of estimated forfeitures	$ 1,259,000		$ 1,259,000
Weighted average basis over period			2 years