Note 13 - Subsequent Event (Details Textual) - USD ($) |
6 Months Ended | ||||
|---|---|---|---|---|---|
Aug. 10, 2020 |
Feb. 13, 2020 |
Jun. 30, 2020 |
Jun. 30, 2019 |
Mar. 31, 2020 |
|
| Stock Issued During Period, Shares, New Issues (in shares) | 2,125,000 | ||||
| Shares Issued, Price Per Share (in dollars per share) | $ 5 | $ 4 | |||
| Proceeds from Issuance of Common Stock | $ 23,000,000 | $ 8,500,000 | $ 7,682,000 | ||
| Proceeds from Issuance of Common Stock, Net | $ 21,100,000 | $ 7,700,000 | |||
| Subsequent Event [Member] | |||||
| Stock Issued During Period, Shares, New Issues (in shares) | 4,600,000 | ||||
| X | ||||||||||
- Definition The cash inflow from the issuance of common stock, net of offering costs. No definition available.
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| X | ||||||||||
- Definition The cash inflow from the additional capital contribution to the entity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Per share or per unit amount of equity securities issued. No definition available.
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| X | ||||||||||
- Definition Number of new stock issued during the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Details
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