Balance at
Beginning
of Period

Charged to
Costs and
Expenses, net of Recoveries

Charged
to Other
Assets

(Deductions)
and
Additions

Balance at
End of
Period

Year ended September 30, 2022

Allowance for doubtful accounts on accounts and financing
   receivables

$

428

$

292

$

—

$

(129

)

$

591

Year ended September 30, 2021

Allowance for doubtful accounts on accounts and financing
   receivables

$

496

$

(76

)

$

—

$

8

$

428

Balance at
Beginning
of Period

Charged to
Costs and
Expenses

Charged
to Other
Assets

(Deductions)
and
Additions

Balance at
End of
Period

Year ended September 30, 2022

Inventory obsolescence reserve

$

36,936

$

3,222

$

—

$

(787

)

$

39,371

Year ended September 30, 2021

Inventory obsolescence reserve

$

34,960

$

3,001

$

—

$

(1,025

)

$

36,936