Share-based compensation arrangement by share-based payment award, period options can be exercised after grant date.

No definition available.

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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-Section 50
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- Definition

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.

+ References

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- Definition

Unrecognized cost of unvested options awarded to employees as compensation.

+ References

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- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Number of additional shares authorized for issuance under an established share-based compensation plan.

+ References

No definition available.

+ Details

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- Definition

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

+ References

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- Definition

For presentations that combine terminations, 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 or that expired.

+ References

+ Details

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- Definition

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

+ References

No definition available.

+ Details

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

+ References

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- Definition

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

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-Publisher FASB
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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

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

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Note 3 - Stock-based Compensation and Shareholders' Equity (Details Textual) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		48 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Allocated share-based compensation expense	$ 27	$ 22
Employee service share-based compensation, nonvested awards, compensation cost not yet recognized	$ 178		$ 178
Employee service share-based compensation, nonvested awards, compensation cost not yet recognized, period for recognition	35 months
Share-based compensation arrangement by share-based payment award, options, grants in period, gross	24,700	25,000
Share-based compensation arrangement by share-based payment award, options, exercises in period	8,275	9,750
Share-based compensation arrangement by share-based payment award, options, outstanding, number	111,500	100,775	111,500	95,075	85,525
Share-based compensation arrangement by share-based payment award, options, grants in period, weighted average grant date fair value	$ 3.96	$ 5.29
The 2005 Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, number of additional shares authorized	200,000
Share-based compensation arrangement by share-based payment award, options, grants in period, gross	184,200
Share-based compensation arrangement by share-based payment award, options, forfeitures and expirations in period	65,850
Share-based compensation arrangement by share-based payment award, options, exercises in period	103,950
Share-based compensation arrangement by share-based payment award, options, outstanding, number	14,400		14,400
The 2015 Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, options, grants in period, gross			98,200
Share-based compensation arrangement by share-based payment award, options, forfeitures and expirations in period			1,100
Share-based compensation arrangement by share-based payment award, options, outstanding, number	97,100		97,100
Shares authorized for issuance	300,000		300,000
Employee Stock Option [Member] \| The 2005 Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, period options can be exercised after grant date	6 months
Share-based compensation arrangement by share-based payment award, expiration period	5 years
Share-based compensation arrangement by share-based payment award, award vesting period	3 years