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v3.23.1

Supplemental Balance Sheet Disclosures (Tables) | 6 Months Ended
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Mar. 31, 2023
Supplemental Balance Sheet Disclosures |
Schedule of inventories | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | March 31, | ​ | September 30,
​ |  | 2023 |  | 2022
Raw materials |  | $ | 5,108,433 |  | $ | 4,451,045
Work-in-process | ​ |  | 745,587 | ​ |  | 795,723
Finished goods | ​ |  | 45,815 | ​ |  | 102,336
​ |  | $ | 5,899,835 |  | $ | 5,349,104
​
Schedule of prepaid expenses and other current assets | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | March 31, | ​ | September 30,
​ |  | 2023 |  | 2022
Prepaid insurance |  | $ | 829,421 | ​ | $ | 777,311
Other | ​ |  | 413,922 | ​ |  | 365,159
​ |  | $ | 1,243,343 | ​ | $ | 1,142,470
​
Schedule of property and equipment, net | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | March 31, | ​ | September 30,
​ |  | 2023 |  | 2022
Computer equipment | ​ | $ | 2,316,679 | ​ | $ | 2,307,139
Corporate airplane | ​ |  | 2,406,468 | ​ |  | 2,406,468
Furniture and office equipment | ​ |  | 976,993 | ​ |  | 976,993
Manufacturing facility | ​ |  | 5,889,491 | ​ |  | 5,889,491
Equipment | ​ |  | 5,607,386 | ​ |  | 5,624,966
Land | ​ | ​ | 1,021,245 | ​ | ​ | 1,021,245
​ | ​ |  | 18,218,262 | ​ |  | 18,226,302
Less: accumulated depreciation and amortization | ​ |  | (12,017,311) | ​ |  | (11,934,113)
​ |  | $ | 6,200,951 |  | $ | 6,292,189
​
Schedule of other assets | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | March 31, | ​ | September 30,
​ |  | 2023 |  | 2022
Intangible assets, net of accumulated amortization of $636,158 at March 31, 2023 and September 30, 2022 |  | $ | 60,348 |  | $ | 60,348
Operating lease right-of-use asset | ​ | ​ | 21,790 | ​ | ​ | 28,680
Other non-current assets | ​ | ​ | 182,528 | ​ |  | 75,300
​ |  | $ | 264,666 |  | $ | 164,328
​
Schedule of accrued expenses | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | March 31, | ​ | September 30,
​ |  | 2023 |  | 2022
Warranty |  | $ | 587,650 |  | $ | 607,001
Salary, benefits and payroll taxes | ​ |  | 742,570 | ​ |  | 1,030,628
Professional fees | ​ |  | 130,600 | ​ |  | 364,794
Operating lease | ​ | ​ | 13,287 | ​ | ​ | 13,615
Other |  | ​ | 388,084 | ​ | ​ | 956,237
​ | ​ | $ | 1,862,191 |  | $ | 2,972,275
​
Schedule of warranty cost and accrual information | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ending | ​ | Six Months Ending
​ |  | March 31, 2023 |  | March 31, 2023
Warranty accrual, beginning of period |  | $ | 577,690 | ​ | $ | 607,001
Accrued expense | ​ |  | 34,912 | ​ |  | 34,376
Warranty cost | ​ |  | (24,952) | ​ |  | (53,727)
Warranty accrual, end of period |  | $ | 587,650 | ​ | $ | 587,650

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