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Consolidated Statements of Shareholders' Equity - USD ($) | Common Stock [Member] | Additional Paid-in Capital [Member] | Treasury Stock [Member] | Accumulated Deficit, Exploration Stage [Member] | Total
--- | --- | --- | --- | --- | ---
Balance (in shares) at Jun. 30, 2016 | 3,958,540 |  |  |  |
Balance at Jun. 30, 2016 | $ 39,585 | $ 33,434,899 |  | $ (32,275,568) | $ 1,198,916
Stock-based compensation |  | 1,787,558 |  |  | 1,787,558
Restricted shares activity (in shares) | 280,067 |  |  |  |
Restricted shares activity | $ 2,801 | (2,801) |  |  |
Treasury shares withheld for employee taxes |  |  | (207,400) |  | (207,400)
Stock option exercises (in shares) | 71,454 |  |  |  |
Stock option exercises | $ 715 | (715) |  |  |
Stock warrant exercises (in shares) | 620,170 |  |  |  |
Stock warrant exercises | $ 6,202 | 5,281,298 |  |  | 5,287,500
Net loss for the period |  |  |  | (2,836,453) | (2,836,453)
Balance (in shares) at Jun. 30, 2017 | 4,930,231 |  |  |  |
Balance at Jun. 30, 2017 | $ 49,303 | 40,500,239 | (207,400) | (35,112,021) | 5,230,121
Stock-based compensation |  | 2,468,645 |  |  | 2,468,645
Restricted shares activity (in shares) | 155,000 |  |  |  |
Restricted shares activity | $ 1,550 | (1,550) |  |  |
Stock option exercises (in shares) | 118,508 |  |  |  |
Stock option exercises | $ 1,185 | (1,185) |  |  |
Stock warrant exercises (in shares) | 404,923 |  |  |  |
Stock warrant exercises | $ 4,049 | 2,318,442 |  |  | 2,322,491
Net loss for the period |  |  |  | (6,188,810) | (6,188,810)
Treasury stock activity (in shares) | (9,068) |  |  |  |
Treasury stock activity | $ (91) | (207,309) | 207,400 |  |
Issuance of common stock (in shares) | 553,672 |  |  |  |
Issuance of common stock | $ 5,537 | 10,514,231 |  |  | 10,519,768
Cost of common stock issuance |  | (642,143) |  |  | (642,143)
Balance (in shares) at Jun. 30, 2018 | 6,153,266 |  |  |  |
Balance at Jun. 30, 2018 | $ 61,533 | $ 54,949,370 |  | $ (41,300,831) | $ 13,710,072

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