Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Revenue:
Total revenue	$ 24,270,000	$ 31,370,000	$ 74,302,000	$ 62,479,000
Cost of revenue:
Total cost of revenue	18,389,000	18,421,000	46,185,000	38,996,000
Gross profit	5,881,000	12,949,000	28,117,000	23,483,000
Operating expenses:
Selling, general and administrative	6,546,000	6,387,000	12,372,000	12,822,000
Research and development	3,863,000	3,483,000	7,465,000	7,741,000
Provision for credit losses	(22,000)	17,000	(51,000)	137,000
Total operating expenses	10,387,000	9,887,000	19,786,000	20,700,000
Income (loss) from operations	(4,506,000)	4,377,000	8,331,000	4,098,000
Other income (expense):
Interest expense	(44,000)	(39,000)	(100,000)	(78,000)
Interest income	247,000	127,000	482,000	283,000
Foreign currency transaction gains (losses), net	(20,000)	185,000	(183,000)	292,000
Other, net	7,000	6,000	(67,000)	(6,000)
Total other income, net	190,000	279,000	132,000	491,000
Income (loss) before income taxes	(4,316,000)	4,656,000	8,463,000	4,589,000
Income tax expense	11,000	19,000	111,000	49,000
Net income (loss)	$ (4,327,000)	$ 4,637,000	$ 8,352,000	$ 4,540,000
Income (loss) per common share:
Basic (in dollars per share)	$ (0.32)	$ 0.35	$ 0.63	$ 0.35
Diluted (in dollars per share)	$ (0.32)	$ 0.35	$ 0.62	$ 0.35
Weighted average common shares outstanding:
Basic (in shares)	13,343,793	13,156,715	13,297,324	13,111,866
Diluted (in shares)	13,343,793	13,156,715	13,471,775	13,111,866
Satellite Property [Member]
Operating expenses:
Gain on disposal of property	$ 0	$ 1,315,000	$ 0	$ 1,315,000
Product [Member]
Revenue:
Total revenue	19,497,000	17,701,000	63,211,000	37,249,000
Cost of revenue:
Total cost of revenue	14,995,000	13,196,000	38,837,000	28,561,000
Rental [Member]
Revenue:
Total revenue	4,773,000	13,669,000	11,091,000	25,230,000
Cost of revenue:
Total cost of revenue	$ 3,394,000	$ 5,225,000	$ 7,348,000	$ 10,435,000