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16. QUARTERLY INFORMATION (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2014 | Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2014
Quarterly Information Details |  |  |  |  |  |  |  |  |  |  |
Grant income and other | $ 101,329 | $ 129,975 | $ 32,775 | $ 20,976 | $ (66,304) | $ 389,223 | $ 197,620 | $ 136,838 | $ 285,055 | $ 657,377 | $ 264,033
Operating expenses | 6,738,472 | 6,036,123 | 5,829,779 | 5,327,509 | 7,797,084 | 8,114,099 | 7,480,363 | 9,655,979 | 23,931,883 | 33,047,525 | 25,931,747
Non-operating (expense) income, net | (466,699) | (464,202) | (464,796) | (483,693) | (482,213) | (497,040) | (494,156) | (490,812) | (1,879,390) | (1,964,221) |
Gain (loss) on derivatives | 5,975,752 | 2,508,744 | (2,593,730) | 8,122,960 | (1,526,338) | 4,428,780 | (4,782,796) | 2,162,970 | 14,013,726 | 282,616 | 248,767
Loss on debt extinguishment |  |  |  |  | 0 | (620,457) | 0 | 0 | 0 | (620,457) | 0
Net loss available to common shareholders | $ (1,128,090) | $ (3,861,606) | $ (8,855,530) | $ 2,332,734 | $ (9,871,939) | $ (4,413,593) | $ (12,559,695) | $ (7,846,983) | $ (11,512,492) | $ (34,692,210) | $ (28,470,126)
Net income (loss) per share-basic and diluted | $ (0.21) | $ (0.78) | $ (1.87) | $ 0.53 |  |  |  |  | $ (2.37) | $ (10.51) |
Net loss per share-basic |  |  |  |  | $ (2.54) | $ (1.32) | $ (4.14) | $ (2.68) | (2.37) | (10.51) | $ (12.10)
Net loss per share-diluted |  |  |  |  | $ (2.54) | $ (1.62) | $ (4.14) | $ (3.42) | $ (2.37) | $ (10.51) | $ (12.21)
Weighted average shares-basic | 5,371,635 | 4,965,300 | 4,736,809 | 4,390,740 | 3,881,600 | 3,351,852 | 3,033,915 | 2,930,431 | 4,866,204 | 3,300,761 |
Weighted average shares-diluted | 5,371,635 | 4,965,300 | 4,736,809 | 4,465,591 | 3,881,600 | 3,405,364 | 3,033,915 | 2,930,431 | 4,866,204 | 3,300,761 |

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