Number of share issued during the period for stock options exercised.

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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.

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- Definition

Unrecognized cost of unvested share-based compensation awards.

+ References

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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.

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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.

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

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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).

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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- Definition

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

+ References

No definition available.

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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.

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- Definition

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

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- Definition

Maximum number of shares that may be issued in accordance with the plan as a proportion of outstanding capital stock.

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No definition available.

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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.

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

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Aggregate value of stock related to Restricted Stock Awards issued during the period.

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Note 11 - Stock Options and Restricted Stock (Details Textual) - USD ($)			12 Months Ended
	Jan. 01, 2016	Jul. 27, 2010	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Jul. 18, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance			2,544,665	4,814,434	4,211,168
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross			0	2,971,600
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period			1,230,002	0
Stock Issued During Period Shares for Stock Options Exercised			663,938
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value				$ 0.19
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Total			$ 141,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition			248 days
Stock Issued During Period, Value, Restricted Stock Award, Gross
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period			1,042,500
Restricted Stock [Member] \| Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period			1,000,000
Stock Issued During Period, Value, Restricted Stock Award, Gross			$ 1,100,000
Selling, General and Administrative Expenses [Member]
Allocated Share-based Compensation Expense, Total			241,000	$ 704,000
Selling, General and Administrative Expenses [Member] \| Restricted Stock [Member]
Allocated Share-based Compensation Expense, Total			$ 153,000
Option Plan 2010 Member
Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Outstanding Stock Maximum		15.00%
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	5,719,069		0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance	38,127,129		834,166
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period	5 years
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized						2,391,711
Option Plan 2010 Member \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	1 year
Option Plan 2010 Member \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years
The 2016 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant						10,391,711
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance			1,710,499
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized						8,000,000