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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Unrecognized cost of unvested share-based compensation awards.

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Amount of cash inflow from exercise of stock options granted under share-based compensation arrangement.

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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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).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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

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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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Number of share instruments newly issued under a share-based compensation plan.

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Percentage of vesting of share-based compensation awards.

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

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Note 10 - Stock-based Compensation (Details Textual) - USD ($)		1 Months Ended				3 Months Ended		6 Months Ended
	Nov. 14, 2017	Dec. 31, 2018	Nov. 30, 2018	Nov. 30, 2017	Jan. 31, 2015	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance		0				0		0
Allocated Share-based Compensation Expense, Total						$ 785,999	$ 580,379	$ 1,530,967	$ 998,117
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance		456,666				456,666		456,666
The 2010 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized	500,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized		1,500,000				1,500,000		1,500,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Total		$ 4,267,492				$ 4,267,492		$ 4,267,492
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period								35,625	190,000
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period								19,513	93,026
Proceeds from Stock Options Exercised								$ 0	$ 0
The 2010 Plan [Member] \| Restricted Stock [Member] \| Executives and Non-executive Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period			155,000	155,000
The 2010 Plan [Member] \| Restricted Stock [Member] \| Executives and Non-executive Directors [Member] \| November 2017 Grant [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance		155,000				155,000		155,000
The 2010 Plan [Member] \| Restricted Stock [Member] \| Executives and Non-executive Directors [Member] \| November 2018 Grant [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance		155,000				155,000		155,000
The 2010 Plan [Member] \| Restricted Stock [Member] \| Two Executives and Non-executive Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance		146,666				146,666		146,666
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period		146,666
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period		117,332
The 2010 Plan [Member] \| Restricted Stock [Member] \| Two Non-executive Directors [Member] \| Share-based Compensation Award, Tranche Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage					33.33%