REVENUE RECOGNITION - Schedule of Disaggregation of Revenues (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Disaggregation of Revenue [Line Items]
Total revenue	$ 44,244	$ 37,254
Fraud and identity solutions
Disaggregation of Revenue [Line Items]
Total revenue	25,470	19,569
SaaS
Disaggregation of Revenue [Line Items]
Total revenue	20,916	17,293
Software license and support
Disaggregation of Revenue [Line Items]
Total revenue	3,908	1,722
Professional services and other
Disaggregation of Revenue [Line Items]
Total revenue	646	554
Check verification solutions
Disaggregation of Revenue [Line Items]
Total revenue	18,774	17,685
SaaS
Disaggregation of Revenue [Line Items]
Total revenue	1,321	1,134
Software license and support
Disaggregation of Revenue [Line Items]
Total revenue	16,907	16,374
Professional services and other
Disaggregation of Revenue [Line Items]
Total revenue	546	177
SaaS
Disaggregation of Revenue [Line Items]
Total revenue	22,237	18,427
Software license and support
Disaggregation of Revenue [Line Items]
Total revenue	20,815	18,096
Professional services and other
Disaggregation of Revenue [Line Items]
Total revenue	$ 1,192	$ 731