XML 51 R39.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Supplementary Balance Sheet Information (Tables) | 12 Months Ended
--- | ---
Sep. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Summary of Accounts Receivable | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | September 30,
​ |  | 2022 |  | 2021
Accounts receivable | ​ | $ | 168,920 | ​ | $ | 124,195
Less allowance for expected credit losses | ​ |  | (5,162) | ​ |  | (4,318)
Accounts receivable, net | ​ | $ | 163,758 | ​ | $ | 119,877
​
Allowance for Doubtful Accounts Activity | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Balance at | ​ | ​ | ​ | ​ | Reversals of | ​ | Balance at
​ | ​ | Beginning of | ​ | ​ | ​ | ​ | Bad Debt | ​ | End of
Description |  | Period |  | Provisions |  | Expense |  | Period
2022 Allowance for expected credit losses | ​ | $ | 4,318 | ​ | $ | 3,536 | ​ | $ | (2,692) | ​ | $ | 5,162
2021 Allowance for expected credit losses | ​ |  | 7,146 | ​ | ​ | 3,445 | ​ | ​ | (6,273) | ​ | ​ | 4,318
2020 Allowance for expected credit losses | ​ |  | 3,548 | ​ | ​ | 4,600 | ​ | ​ | (1,002) | ​ | ​ | 7,146
​
Summary of Inventories | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | September 30,
​ |  | 2022 |  | 2021
Inventories |  | ​ |  |  | ​ |
Raw materials and purchased parts | ​ | $ | 39,685 | ​ | $ | 27,644
Work-in-process | ​ |  | 4,816 | ​ |  | 4,787
Finished goods | ​ |  | 41,043 | ​ |  | 27,967
Total inventories | ​ | $ | 85,544 | ​ | $ | 60,398
​ ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Balance at | ​ | ​ | ​ | ​ | Inventory | ​ | Balance at
​ | ​ | Beginning of | ​ | ​ | ​ | ​ | Disposals and | ​ | End of
Description |  | Period |  | ​ | Provisions |  | Adjustments |  | Period
2022 Reserves for excess and obsolete inventory | ​ | $ | 3,681 |  | $ | 1,752 | ​ | $ | (1,351) | ​ | $ | 4,082
2021 Reserves for excess and obsolete inventory | ​ | ​ | 3,136 |  | ​ | 1,522 | ​ | $ | (977) | ​ | ​ | 3,681
2020 Reserves for excess and obsolete inventory | ​ |  | 3,157 |  | ​ | 1,515 | ​ | ​ | (1,536) | ​ | ​ | 3,136
​
Valuation Allowance for Deferred Tax Assets Activity | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Balance at | ​ | ​ | ​ | ​ | ​ | ​ | Balance at
​ | ​ | Beginning of | ​ | Charged to | ​ | Charged to | ​ | End of
Description |  | Period |  | Income Tax Benefit |  | Other Accounts |  | Period
2022 Valuation allowance for deferred tax assets | ​ | $ | 8,592 | ​ | $ | 1,337 | ​ | $ | (4,002) | ​ | $ | 5,927
2021 Valuation allowance for deferred tax assets | ​ |  | 10,623 | ​ | ​ | (3,247) | ​ | $ | 1,216 | ​ | ​ | 8,592
2020 Valuation allowance for deferred tax assets | ​ |  | 12,843 | ​ | ​ | (2,514) | ​ | ​ | 294 | ​ | ​ | 10,623
​
Product Warranty and Retrofit Activity on Gross Basis | ​
​ | ​ | ​ | ​
​ |  | Amount
Balance at September 30, 2019 | ​ | $ | 2,314
Accruals for warranties during the year | ​ |  | 2,779
Costs incurred during the year | ​ |  | (2,882)
Balance at September 30, 2020 | ​ |  | 2,211
Accruals for warranties during the year | ​ |  | 2,300
Costs incurred during the year | ​ |  | (2,181)
Balance at September 30, 2021 | ​ |  | 2,330
Adjustments for acquisitions | ​ |  | 254
Accruals for warranties during the year | ​ |  | 2,438
Costs incurred during the year | ​ |  | (2,132)
Balance at September 30, 2022 | ​ | $ | 2,890
​

X
- Definition Tabular disclosure of allowance for credit loss on financing receivable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 + Details
Name: | us-gaap_AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3,4) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(c)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(b)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(a)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6361739&loc=d3e7789-107766 + Details
Name: | us-gaap_ScheduleOfInventoryCurrentTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate product warranty liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -URI https://asc.fasb.org/extlink&oid=126907703&loc=d3e12565-110249 + Details
Name: | us-gaap_ScheduleOfProductWarrantyLiabilityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of valuation allowances to reduce deferred tax assets to net realizable value, including identification of the deferred tax asset more likely than not will not be fully realized and the corresponding amount of the valuation allowance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319 + Details
Name: | us-gaap_SummaryOfValuationAllowanceTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration