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

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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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 - Summary of Stock Options (Details) - The 2010 Plan [Member] - USD ($)	6 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Options outstanding (in shares)	35,625
Options outstanding, weighted average exercise price (in dollars per share)	$ 10.01
Granted (in shares)
Granted, weighted average fair value (in dollars per share)
Exercised (in shares)	35,625	190,000
Exercised, weighted average fair value (in dollars per share)	$ 10.01
Forfeited (in shares)
Forfeited, weighted average fair value (in dollars per share)
Options outstanding (in shares)
Options outstanding, weighted average exercise price (in dollars per share)
Aggregate intrinsic value
Exercisable, end of period (in shares)
Aggregate intrinsic value
Available for grant, end of period (in shares)