Note 8 - Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
Sep. 30, 2022	Sep. 30, 2021
Revenues	$ 27,466	$ 35,167
Hardware [Member]
Revenues	5,417	6,806
Software [Member]
Revenues	2,481	3,588
Shipping [Member]
Revenues	237	79
Product and Other [Member]
Revenues	8,135	10,473
Service Support [Member]
Revenues	6,410	7,298
Service Hosting [Member]
Revenues	7,018	8,296
Service Events [Member]
Revenues	4,464	6,391
Service Installs and Training [Member]
Revenues	1,439	2,709
Service [Member]
Revenues	19,331	24,694
Intersegment Eliminations [Member]
Revenues	(2,340)	(2,682)
Intersegment Eliminations [Member] \| Hardware [Member]
Revenues	(526)	(984)
Intersegment Eliminations [Member] \| Software [Member]
Revenues	(387)	(396)
Intersegment Eliminations [Member] \| Shipping [Member]
Revenues	0	0
Intersegment Eliminations [Member] \| Product and Other [Member]
Revenues	(913)	(1,380)
Intersegment Eliminations [Member] \| Service Support [Member]
Revenues	(699)	(844)
Intersegment Eliminations [Member] \| Service Hosting [Member]
Revenues	(394)	(458)
Intersegment Eliminations [Member] \| Service Events [Member]
Revenues	0	0
Intersegment Eliminations [Member] \| Service Installs and Training [Member]
Revenues	(334)	0
Intersegment Eliminations [Member] \| Service [Member]
Revenues	(1,427)	(1,302)
SOFO [Member] \| Operating Segments [Member]
Revenues	21,781	25,661
SOFO [Member] \| Operating Segments [Member] \| Hardware [Member]
Revenues	5,238	5,759
SOFO [Member] \| Operating Segments [Member] \| Software [Member]
Revenues	2,062	2,663
SOFO [Member] \| Operating Segments [Member] \| Shipping [Member]
Revenues	227	74
SOFO [Member] \| Operating Segments [Member] \| Product and Other [Member]
Revenues	7,528	8,496
SOFO [Member] \| Operating Segments [Member] \| Service Support [Member]
Revenues	4,948	6,588
SOFO [Member] \| Operating Segments [Member] \| Service Hosting [Member]
Revenues	5,446	5,786
SOFO [Member] \| Operating Segments [Member] \| Service Events [Member]
Revenues	3,146	3,982
SOFO [Member] \| Operating Segments [Member] \| Service Installs and Training [Member]
Revenues	714	809
SOFO [Member] \| Operating Segments [Member] \| Service [Member]
Revenues	14,253	17,165
SFI [Member] \| Operating Segments [Member]
Revenues	3,155	3,082
SFI [Member] \| Operating Segments [Member] \| Hardware [Member]
Revenues	409	607
SFI [Member] \| Operating Segments [Member] \| Software [Member]
Revenues	399	458
SFI [Member] \| Operating Segments [Member] \| Shipping [Member]
Revenues	10	5
SFI [Member] \| Operating Segments [Member] \| Product and Other [Member]
Revenues	818	1,070
SFI [Member] \| Operating Segments [Member] \| Service Support [Member]
Revenues	502	631
SFI [Member] \| Operating Segments [Member] \| Service Hosting [Member]
Revenues	879	1,014
SFI [Member] \| Operating Segments [Member] \| Service Events [Member]
Revenues	50	99
SFI [Member] \| Operating Segments [Member] \| Service Installs and Training [Member]
Revenues	906	268
SFI [Member] \| Operating Segments [Member] \| Service [Member]
Revenues	2,337	2,012
MSKK [Member] \| Operating Segments [Member]
Revenues	4,870	9,106
MSKK [Member] \| Operating Segments [Member] \| Hardware [Member]
Revenues	296	1,423
MSKK [Member] \| Operating Segments [Member] \| Software [Member]
Revenues	407	863
MSKK [Member] \| Operating Segments [Member] \| Shipping [Member]
Revenues	0	0
MSKK [Member] \| Operating Segments [Member] \| Product and Other [Member]
Revenues	703	2,286
MSKK [Member] \| Operating Segments [Member] \| Service Support [Member]
Revenues	1,659	924
MSKK [Member] \| Operating Segments [Member] \| Service Hosting [Member]
Revenues	1,087	1,954
MSKK [Member] \| Operating Segments [Member] \| Service Events [Member]
Revenues	1,268	2,310
MSKK [Member] \| Operating Segments [Member] \| Service Installs and Training [Member]
Revenues	153	1,632
MSKK [Member] \| Operating Segments [Member] \| Service [Member]
Revenues	$ 4,167	$ 6,820