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The term of warrant issued.

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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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Exercise price per share or per unit of warrants or rights outstanding.

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Number of securities into which each warrant or right may be converted. For example, but not limited to, each warrant may be converted into two shares.

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Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

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Unrecognized cost of unvested share-based compensation awards.

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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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The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.

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

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Price of a single share of a number of saleable stocks of a company.

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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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Per share or per unit amount of equity securities issued.

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Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price.

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Note 12 - Stockholders' Equity (Details Textual) - USD ($)				12 Months Ended
	Nov. 15, 2016	Nov. 03, 2016	Oct. 21, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Preferred Stock, Shares Authorized				1,500,000	1,500,000
Stock and Warrants Issued During Period, Shares	901,666
Stock and Warrants Issued During Period, Value	$ 541,000			$ 541,000
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right	1
Class of Warrant or Right, Exercise Price of Warrants or Rights				$ 0.01
Warrant, Exercisable Term			180 days
Share Price				$ 0.65
Allocated Share-based Compensation Expense				$ 520,000	$ 226,000
General and Administrative Expense [Member]
Allocated Share-based Compensation Expense				$ 492,000	$ 193,000
Warrant [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number				317,460
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period
Chief Executive Officer [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights		317,460
Class of Warrant or Right, Exercise Price of Warrants or Rights		$ 0.01
Warrant Term		10 years
Warrants and Rights Outstanding		$ 188,000
Warrant, Amortization Period		$ 2
Chief Executive Officer [Member] \| Warrant [Member] \| General and Administrative Expense [Member]
Allocated Share-based Compensation Expense				$ 23
Chief Executive Officer [Member] \| VestBeginning on January 1, 2017 [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights		39,682
Chief Executive Officer [Member] \| Vest Beginning on October 1, 2017 [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights		39,686
Non-employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number				102,500	142,500
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period				40,000
Incentive Share Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized				5,372,630
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period				10 years
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant				3,322,630
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period				4 years
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized				$ 492,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition				1 year 295 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number				2,256,000	1,146,000	1,262,763
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period				650,000	261,000
Subscription Agreement [Member]
Stock and Warrants Issued During Period, Shares	901,666
Shares Issued, Price Per Share	$ 0.60
Stock and Warrants Issued During Period, Value	$ 541,000
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right	0.8
Subscription Agreement, Participate, Trigger Amount	$ 100,000
Class of Warrant or Right, Number of Securities Called by Warrants or Rights	901,666
Class of Warrant or Right, Exercise Price of Warrants or Rights	$ 0.80
Warrant Term	3 years
Warrant, Exercisable Term	180 days
Series A Preferred Stock [Member]
Preferred Stock, Shares Authorized				500,000