Segment Information (Tables)

12 Months Ended

Sep. 30, 2025

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

			Technology Solutions Segment
	High
	Performance
	Products		United						Consolidated
Year ended September 30,	Segment		Kingdom		U.S.		Total		Total
	(Amounts in thousands)
2025
Sales:
Product	$	487	$	822	$	36,440	$	37,262	$	37,749
Service		1,435		276		19,270		19,546		20,981
Total sales		1,922		1,098		55,710		56,808		58,730
Cost of sales:
Product		264		750		30,449		31,199		31,463
Services		782		88		7,886		7,974		8,756
Total cost of sales		1,046		838		38,335		39,173		40,219
Gross profit		876		260		17,375		17,635		18,511
Research and development		3,250		—		—		—		3,250
Selling, general and administrative		4,584		423		13,363		13,786		18,370
Total operating expenses		7,834		423		13,363		13,786		21,620
Operating (loss) income	$	(6,958)	$	(163)	$	4,012	$	3,849	$	(3,109)
Interest expense	$	(12)	$	—	$	(345)	$	(345)	$	(357)
Interest income	$	12	$	173	$	1,669	$	1,842	$	1,854
Depreciation and amortization	$	(75)	$	—	$	(169)	$	(169)	$	(244)
Cash and cash equivalents	$	200	$	4,872	$	22,346	$	27,218	$	27,418
Accounts receivable, net of allowance	$	215	$	356	$	11,429	$	11,785	$	12,000
Financing receivables, net of allowance	$	—	$	—	$	14,904	$	14,904	$	14,904
Total assets	$	11,664	$	5,446	$	54,053	$	59,499	$	71,163
Capital expenditures	$	(47)	$	—	$	(301)	$	(301)	$	(348)
2024
Sales:
Product	$	2,599	$	594	$	33,600	$	34,194	$	36,793
Service		1,555		260		16,611		16,871		18,426
Total sales		4,154		854		50,211		51,065		55,219
Cost of sales:
Product		736		507		27,557		28,064		28,800
Services		716		104		6,744		6,848		7,564
Total cost of sales		1,452		611		34,301		34,912		36,364
Gross profit		2,702		243		15,910		16,153		18,855
Research and development		2,956		—		—		—		2,956
Selling, general and administrative		4,591		517		12,663		13,180		17,771
Total operating expenses		7,547		517		12,663		13,180		20,727
Operating (loss) income	$	(4,845)	$	(274)	$	3,247	$	2,973	$	(1,872)

Interest expense	$	(16)	$	—	$	(219)	$	(219)	$	(235)
Interest income	$	38	$	218	$	1,791	$	2,009	$	2,047
Depreciation and amortization	$	(99)	$	—	$	(199)	$	(199)	$	(298)
Cash and cash equivalents	$	65	$	5,442	$	25,078	$	30,520	$	30,585
Accounts receivable, net of allowance	$	260	$	158	$	14,076	$	14,234	$	14,494
Financing receivables, net of allowance	$	—	$	—	$	7,306	$	7,306	$	7,306
Total assets	$	9,554	$	7,880	$	52,002	$	59,882	$	69,436
Capital expenditures	$	(137)	$	—	$	(59)	$	(59)	$	(196)

Schedule of Revenue from External Customers by Geographic Areas

See details of timing of revenue recognition and whether CSPi acted as the principal or agent below. Also see geographic areas based on where the products were shipped or services rendered.

			Technology Solutions Segment
	High
	Performance
	Products		United						Consolidated
Year ended September 30,	Segment		Kingdom		U.S.		Total		Total
	(Amounts in thousands)
2025
Timing of Revenue Recognition
Transferred at a point in time where CSPi is principal	$	487	$	831	$	37,220	$	38,051	$	38,538
Transferred at a point in time where CSPi is agent		—		79		8,057		8,136		8,136
Transferred over time where CSPi is principal		1,435		188		10,433		10,621		12,056
Total Revenue	$	1,922	$	1,098	$	55,710	$	56,808	$	58,730
Geography
United States	$	1,673	$	218	$	50,692	$	50,910	$	52,583
Americas (excluding United States)		3		—		4,525		4,525		4,528
Europe		1		875		486		1,361		1,362
APAC and Africa		245		5		7		12		257
Total Revenue	$	1,922	$	1,098	$	55,710	$	56,808	$	58,730
2024
Timing of Revenue Recognition
Transferred at a point in time where CSPi is principal	$	3,098	$	603	$	33,921	$	34,524	$	37,622
Transferred at a point in time where CSPi is agent		—		37		7,070		7,107		7,107
Transferred over time where CSPi is principal		1,056		214		9,220		9,434		10,490
Total Revenue	$	4,154	$	854	$	50,211	$	51,065	$	55,219
Geography
United States	$	3,098	$	75	$	45,611	$	45,686	$	48,784
Americas (excluding United States)		714		—		3,810		3,810		4,524
Europe		6		775		344		1,119		1,125
APAC and Africa		336		4		446		450		786
Total Revenue	$	4,154	$	854	$	50,211	$	51,065	$	55,219

Schedule of Revenue by Major Customers

Below are customers with 10% or more of financing receivables as of September 30, 2025 or 2024. All financing receivables are in the TS-US division.

	As of September 30, 2025				As of September 30, 2024
	(Amounts in millions)
			% of Total				% of Total
	Financing Receivables		Financing Receivables		Financing Receivables		Financing Receivables
Customer A	$	0.7	5	%	$	3.0	41	%
Customer B	$	1.6	11	%	$	1.9	25	%
Customer C	$	2.8	19	%	$	—	-	%
Customer E	$	5.9	40	%	$	1.3	18	%