EQUITY - Registration Rights Agreement (Details) $ in Millions	1 Months Ended
Jan. 31, 2020 USD ($)
Equity [Abstract]
Termination of Registration Rights Arrangement, payment	$ 1.2

Registration Payment Arrangement, Payment fro Termination

No definition available.

Name:	usat_RegistrationPaymentArrangementPaymentforTermination
Namespace Prefix:	usat_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration