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Selected Quarterly Financial Data (Unaudited) - Summary of Quarterly Financial Information (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2020 | Jun. 30, 2019
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |
Revenues | $ 3,352,847 | $ 7,712,619 | $ 9,381,615 | $ 9,152,215 | $ 10,373,396 | $ 9,501,028 | $ 11,048,118 | $ 12,307,079 |  |
Income (loss) from operations | (2,786,164) | 951,814 | 2,249,764 | 3,274,019 | 3,955,194 | 2,952,955 | 4,733,747 | 5,994,927 | $ 3,689,433 | $ 17,636,823
Net income (loss) attributable to common shareholders | $ (2,330,825) | $ 3,710,159 | $ 1,764,918 | $ 2,792,820 | $ 3,277,825 | $ 2,398,875 | $ 3,904,565 | $ 5,795,801 | $ 5,937,072 | $ 15,377,066
Basic earnings (loss) per common share (in dollars per share) | $ (0.07) | $ 0.11 | $ 0.05 | $ 0.08 | $ 0.10 | $ 0.07 | $ 0.12 | $ 0.18 | $ 0.18 | $ 0.46
Diluted earnings (loss) per common share (in dollars per share) | $ (0.07) | $ 0.11 | $ 0.05 | $ 0.08 | $ 0.10 | $ 0.07 | $ 0.12 | $ 0.17 | $ 0.18 | $ 0.46
Net tax benefit |  | $ 2,800,000 |  |  |  |  |  |  | $ 2,800,000 |
Affiliate Of Enduro Resource Partners LLC |  |  |  |  |  |  |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |  |  |  |  |  |  |
Other income |  |  |  | $ 1,100,000 |  |  |  |  |  |

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