Note 2 - Summary of Significant Accounting Policies - Customer Concentration Risk (Details) - USD ($)	12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Revenues	$ 35,215,454	$ 36,886,500
Revenue from Contract with Customer Benchmark [Member] \| Customer Concentration Risk [Member] \| Customer A [Member]
Revenues	$ 4,422,047	$ 3,328,803
Customer concentration risk percentage	13.00%	9.00%
Revenue from Contract with Customer Benchmark [Member] \| Customer Concentration Risk [Member] \| Customer B [Member]
Revenues	$ 3,408,688	$ 3,482,363
Customer concentration risk percentage	10.00%	9.00%
Revenue from Contract with Customer Benchmark [Member] \| Customer Concentration Risk [Member] \| Customer D [Member]
Revenues	$ 475,144	$ 5,746,451
Customer concentration risk percentage	1.00%	16.00%
Revenue from Contract with Customer Benchmark [Member] \| Customer Concentration Risk [Member] \| Customer C [Member]
Revenues	$ 3,265,277	$ 3,757,504
Customer concentration risk percentage	9.00%	10.00%
Accounts Receivable [Member] \| Customer Concentration Risk [Member] \| Customer E [Member]
Customer accounts receivable amount	$ 784,966	$ 326,908
Customer concentration risk percentage	12.00%	7.00%
Accounts Receivable [Member] \| Customer Concentration Risk [Member] \| Customer F [Member]
Customer accounts receivable amount	$ 767,376	$ 475,012
Customer concentration risk percentage	12.00%	11.00%
Accounts Receivable [Member] \| Customer Concentration Risk [Member] \| Customer G [Member]
Customer accounts receivable amount	$ 673,297	$ 489,618
Customer concentration risk percentage	10.00%	11.00%
Accounts Receivable [Member] \| Customer Concentration Risk [Member] \| Customer D [Member]
Customer accounts receivable amount	$ 0	$ 495,969
Customer concentration risk percentage	0.00%	11.00%

Track Group, Inc. 10-K