v3.26.1
Supplemental Balance Sheet Disclosures (Tables)
9 Months Ended
Jun. 30, 2026
Supplemental Balance Sheet Disclosures  
Schedule of inventories

  ​ ​ ​

June 30, 

  ​ ​ ​

September 30, 

2026

2025

Raw materials

$

25,672,948

$

22,445,837

Work-in-process

 

5,517,951

 

2,295,587

Finished goods

 

893,395

 

1,060,757

$

32,084,294

$

25,802,181

Schedule of prepaid expenses and other current assets

  ​ ​ ​

June 30, 

  ​ ​ ​

September 30, 

2026

2025

Supplier deposits

649,416

486,763

Prepaid insurance and services

520,719

418,406

Prepaid income tax

1,653,389

Deferred engineering

279,527

Other receivable

357,230

Unamortized debt issuance costs

147,527

147,527

Other

 

324,123

 

339,702

3,931,931

$

1,392,398

Summary of intangible assets other than goodwill

As of June 30, 2026

Gross Carrying

  ​ ​ ​

Accumulated

  ​ ​ ​

Accumulated

  ​ ​ ​

Net Carrying

Value

 

Impairment

 

Amortization

 

Value

License agreements (a)

$

21,290,000

$

$

$

21,290,000

Customer relationships (a)

 

21,934,327

 

 

(3,650,470)

 

18,283,857

Backlog (b)

8,190,000

(2,000,973)

6,189,027

Trade name (c)

260,000

(4,333)

255,667

Licensing and certification rights (d)

 

696,506

 

(44,400)

 

(638,285)

 

13,821

Total

$

52,370,833

$

(44,400)

$

(6,294,061)

$

46,032,372

As of September 30, 2025

  ​ ​ ​

Gross Carrying

  ​ ​ ​

Accumulated

  ​ ​ ​

Accumulated

  ​ ​ ​

Net Carrying

 

Value

 

Impairment

 

Amortization

 

Value

License agreements (a)

$

9,790,000

$

$

$

9,790,000

Customer relationships (a)

 

12,604,327

 

 

(2,705,533)

 

9,898,794

Backlog (b)

4,850,000

(970,000)

3,880,000

Licensing and certification rights (d)

 

696,506

 

(44,400)

 

(638,285)

 

13,821

Total

$

27,940,833

$

(44,400)

$

(4,313,818)

$

23,582,615

(a)The license agreements have an indefinite life and are not subject to amortization; the customer relationships have an estimated weighted average life of ten years.

(b)Backlog assets are amortized according to the timing of order fulfillment.

(c)The trade name is amortized over 15 years.

(d)The licensing and certification rights are amortized over a defined number of units.
Summary of expected future amortization expense related to the customer relationships

Amortization Expense

2026 (three months remaining)

$

1,392,158

2027

5,935,555

2028

3,459,201

2029

2,714,618

2030

2,194,361

Thereafter

9,032,658

Total

$

24,728,551

Schedule of goodwill activity

Goodwill

Balance at September 30, 2025

$

6,703,104

Fiscal 2026 Activity:

Business Combination - Honeywell Autopilot Agreement

3,810,000

Business Combination - Honeywell Generators Agreement

3,650,000

Business Combination - Other

1,610,000

Balance at June 30, 2026

$

15,773,104

Schedule of property and equipment, net

  ​ ​ ​

June 30, 

  ​ ​ ​

September 30, 

2026

2025

Computer equipment

$

3,555,949

$

3,169,835

Corporate R&D airplane

 

1,187,911

 

-

Furniture and office equipment

 

1,042,096

 

984,205

Buildings and improvements

 

12,527,693

 

11,598,890

Equipment other

 

16,496,658

 

15,958,271

Land

 

1,021,246

 

1,021,245

 

35,831,553

 

32,732,446

Less accumulated depreciation and amortization

 

(15,148,878)

 

(13,927,910)

$

20,682,675

$

18,804,536

Schedule of other assets

  ​ ​ ​

June 30, 

  ​ ​ ​

September 30, 

2026

2025

Unamortized debt issuance costs

$

449,048

$

560,603

Other non-current assets

 

137,200

 

157,863

$

586,248

$

718,466

Schedule of accrued expenses

June 30, 

September 30, 

2026

2025

Warranty

$

1,008,343

$

730,498

Salary, benefits and payroll taxes

 

967,766

1,234,246

Inventory in transit

 

1,097,222

Income tax payable

2,045,123

ERC related expenses

378,846

Bonus accruals

1,577,776

1,972,221

Other

1,309,234

703,811

$

4,863,119

$

8,161,967

Schedule of warranty cost and accrual information

  ​ ​ ​

Three Months Ending

Nine Months Ending

  ​ ​ ​

June 30, 2026

June 30, 2026

Warranty accrual, beginning of period

$

953,488

$

730,498

Accrued expense (adjustment)

 

137,000

 

603,000

Warranty cost

 

(82,145)

 

(325,155)

Warranty accrual, end of period

$

1,008,343

$

1,008,343