Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Revenue:
Total revenue	$ 25,858,000	$ 32,715,000	$ 100,160,000	$ 95,194,000
Cost of revenue:
Total cost of revenue	17,332,000	18,736,000	63,517,000	57,732,000
Gross profit	8,526,000	13,979,000	36,643,000	37,462,000
Operating expenses:
Selling, general and administrative	6,941,000	6,655,000	19,313,000	19,477,000
Research and development	4,011,000	4,356,000	11,476,000	12,097,000
Provision for (recovery of) credit losses	(33,000)	(178,000)	(84,000)	(41,000)
Total operating expenses	10,919,000	10,833,000	30,705,000	31,533,000
Income (loss) from operations	(2,393,000)	3,146,000	5,938,000	7,244,000
Other income (expense):
Interest expense	(44,000)	(22,000)	(144,000)	(100,000)
Interest income	472,000	88,000	954,000	371,000
Foreign currency transaction gains (losses), net	(70,000)	301,000	(253,000)	593,000
Other, net	(37,000)	(66,000)	(104,000)	(72,000)
Total other income, net	321,000	301,000	453,000	792,000
Income (loss) before income taxes	(2,072,000)	3,447,000	6,391,000	8,036,000
Income tax expense (benefit)	(2,000)	219,000	109,000	268,000
Net income (loss)	$ (2,070,000)	$ 3,228,000	$ 6,282,000	$ 7,768,000
Income (loss) per common share:
Basic (in dollars per share)	$ (0.16)	$ 0.25	$ 0.47	$ 0.59
Diluted (in dollars per share)	$ (0.16)	$ 0.24	$ 0.47	$ 0.59
Weighted average common shares outstanding:
Basic (in shares)	13,216,386	13,171,654	13,270,444	13,131,795
Diluted (in shares)	13,216,386	13,320,881	13,431,714	13,157,919
Satellite Property [Member]
Operating expenses:
Gain on disposal of property	$ 0	$ 0	$ 0	$ 1,315,000
Product [Member]
Revenue:
Total revenue	20,223,000	19,727,000	83,434,000	56,976,000
Cost of revenue:
Total cost of revenue	14,179,000	14,522,000	53,016,000	43,083,000
Rental [Member]
Revenue:
Total revenue	5,635,000	12,988,000	16,726,000	38,218,000
Cost of revenue:
Total cost of revenue	$ 3,153,000	$ 4,214,000	$ 10,501,000	$ 14,649,000