Other Comprehensive Income (Reconciliation of Accumulated Comprehensive Income (Loss)) (Details) - USD ($) |
3 Months Ended | 6 Months Ended | ||||
---|---|---|---|---|---|---|
Mar. 31, 2020 |
Dec. 31, 2019 |
Mar. 31, 2019 |
Dec. 31, 2018 |
Mar. 31, 2020 |
Mar. 31, 2019 |
|
Increase (Decrease) in Other Accumulated Comprehensive Income (Loss) [Roll Forward] | ||||||
Balance at beginning of period | $ 86,359,135 | $ 83,096,392 | $ 80,959,740 | $ 79,583,112 | $ 83,096,392 | $ 79,583,112 |
Other comprehensive loss | (1,199,783) | 279,844 | (46,034) | (83,316) | (919,939) | (129,350) |
Balance at end of period | 90,317,347 | 86,359,135 | 84,974,517 | 80,959,740 | 90,317,347 | 84,974,517 |
Accumulated Other Comprehensive Income (Loss) | ||||||
Increase (Decrease) in Other Accumulated Comprehensive Income (Loss) [Roll Forward] | ||||||
Balance at beginning of period | (2,209,073) | (2,488,917) | (954,984) | (871,668) | (2,488,917) | (871,668) |
Other comprehensive loss | (1,199,783) | 279,844 | (46,034) | (83,316) | ||
Balance at end of period | $ (3,408,856) | $ (2,209,073) | $ (1,001,018) | $ (954,984) | $ (3,408,856) | $ (1,001,018) |