Note 8 - Share-based Compensation (Details Textual) |
3 Months Ended |
|---|---|
|
Sep. 30, 2018
shares
| |
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Contractual Term | 10 years |
| Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant | 1,428,669 |
| X | ||||||||||
- Definition Contractual term for option awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
|
| X | ||||||||||
- 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. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|