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Segment Information | 3 Months Ended
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Dec. 31, 2022
Segment Information |
Segment Information | 15. Segment Information The following tables present certain operating segment information for the three ended December 31, 2022 and 2021.
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | Technology Solutions Segment | ​ | ​ | ​
​ | ​ | High | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Performance | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Products | ​ | United | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Consolidated
Three months ended December 31, |  | Segment |  | Kingdom |  | U.S. |  | Total |  | Total
​ | ​ | (Amounts in thousands)
2022 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Sales: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Product | ​ | $ | 2,162 | ​ | $ | 191 | ​ | $ | 11,868 | ​ | $ | 12,059 | ​ | $ | 14,221
Service | ​ |  | 327 | ​ |  | 87 | ​ |  | 3,709 | ​ |  | 3,796 | ​ |  | 4,123
Total sales | ​ | $ | 2,489 | ​ | $ | 278 | ​ | $ | 15,577 | ​ | $ | 15,855 | ​ | $ | 18,344
Operating (loss) income | ​ | $ | (98) | ​ | $ | 14 | ​ | $ | 1,448 | ​ | $ | 1,462 | ​ | $ | 1,364
Interest income | ​ | $ | 1 | ​ | $ | 35 | ​ | $ | 225 | ​ | $ | 260 | ​ | $ | 261
Interest expense | ​ | $ | (3) | ​ | $ | — | ​ | $ | (61) | ​ | $ | (61) | ​ | $ | (64)
Total assets | ​ | $ | 9,973 | ​ | $ | 6,713 | ​ | $ | 52,288 | ​ | $ | 59,001 | ​ | $ | 68,974
Capital expenditures | ​ | $ | 16 | ​ | $ | — | ​ | $ | 28 | ​ | $ | 28 | ​ | $ | 44
Depreciation and amortization | ​ | $ | 29 | ​ | $ | — | ​ | $ | 61 | ​ | $ | 61 | ​ | $ | 90
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
2021 | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Sales: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Product | ​ | $ | 720 | ​ | $ | 62 | ​ | $ | 7,938 | ​ | $ | 8,000 | ​ | $ | 8,720
Service | ​ |  | 344 | ​ |  | 93 | ​ |  | 3,212 | ​ |  | 3,305 | ​ |  | 3,649
Total sales | ​ | $ | 1,064 | ​ | $ | 155 | ​ | $ | 11,150 | ​ | $ | 11,305 | ​ | $ | 12,369
Operating (loss) income | ​ | $ | (1,005) | ​ | $ | (55) | ​ | $ | 664 | ​ | $ | 609 | ​ | $ | (396)
Interest income | ​ | $ | — | ​ | $ | 7 | ​ | $ | 138 | ​ | $ | 145 | ​ | $ | 145
Interest expense | ​ | $ | (17) | ​ | $ | — | ​ | $ | (88) | ​ | $ | (88) | ​ | $ | (105)
Total assets | ​ | $ | 9,056 | ​ | $ | 9,397 | ​ | $ | 43,333 | ​ | $ | 52,730 | ​ | $ | 61,786
Capital expenditures | ​ | $ | 45 | ​ | $ | — | ​ | $ | 92 | ​ | $ | 92 | ​ | $ | 137
Depreciation and amortization | ​ | $ | 35 | ​ | $ | — | ​ | $ | 59 | ​ | $ | 59 | ​ | $ | 94
​ Income (loss) from operations consists of sales less cost of sales, engineering and development expenses, and selling, general and administrative expenses but is not affected by either other income/expense or by income taxes expense (benefit). Non-operating expenses/income consists principally of interest income from transactions with payment terms exceeding one year (see Note 6, “Accounts and Long-Term Receivable” for details), and interest expense. All intercompany transactions have been eliminated. The following table lists customers from which the Company derived revenues of 10% or more of total revenues for the three months ended December 31, 2022 and 2021.
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended December 31, | ​
​ | ​ | 2022 | ​ | ​ | 2021 | ​
​ | ​ | (in millions) | ​ | ​ | (in millions) | ​
​ | ​ | Customer | ​ | % of Total | ​ | ​ | Customer | ​ | % of Total | ​
​ |  | Revenues |  | Revenues |  | ​ | Revenues |  | Revenues |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Customer A | ​ | $ | 1.8 | ​ | 10 | % | ​ | $ | 1.9 | ​ | 16 | %
Customer B | ​ | $ | 2.1 | ​ | 12 | % | ​ | $ | 0.9 | ​ | 7 | %
Customer C | ​ | $ | 1.8 | ​ | 10 | % | ​ | $ | — | ​ | - | %
​ Customer A had a balance of $13.6 million, or 47%, of total consolidated accounts receivable and long-term receivable as of December 31, 2022. Customer A had a balance of $16.2 million, or 52%, of total consolidated accounts receivable and long-term receivable as of September 30, 2022. There were no other customers with more than 10% of total consolidated accounts receivable and long-term receivable as of September 30, 2022 and December 31, 2022. We believe that the Company is not exposed to any significant credit risk with respect to the accounts receivable with any customers as of December 31, 2022.

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 31 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8924-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8981-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8721-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9031-108599 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8844-108599 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9054-108599 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8657-108599 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8721-108599 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -URI http://asc.fasb.org/topic&trid=2134510 + Details
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