SUBSEQUENT EVENTS - 2015 INCENTIVE PLANS (Detail Textuals 1) (Subsequent Event, 2015 Short-Term Incentive Plan)	1 Months Ended
Aug. 28, 2014
Subsequent Event \| 2015 Short-Term Incentive Plan
Subsequent Event [Line Items]
Percentage of annual financial goals	80.00%
Percentage of performance goals relating to the executive officer	20.00%
Percentage of annual financial goals are total revenues	30.00%
Percentage of cash generated from operations	30.00%
Percentage of non-GAAP net income	40.00%

This element represents percentage of weighting annual financial goals.

No definition available.

Name:	usat_PercentageOfWeightingAnnualFinancialGoals
Namespace Prefix:	usat_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

This element represents percentage of weighting annual financial goals are total revenues.

No definition available.

Name:	usat_PercentageOfWeightingAnnualFinancialGoalsAreTotalRevenues
Namespace Prefix:	usat_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

This element represents percentage of weighting cash generated from operations.

No definition available.

Name:	usat_PercentageOfWeightingCashGeneratedFromOperations
Namespace Prefix:	usat_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

This element represents percentage of weighting compensation committee.

No definition available.

Name:	usat_PercentageOfWeightingCompensationCommitee
Namespace Prefix:	usat_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

This element represents percentage of weighting non gaap net income.

No definition available.

Name:	usat_PercentageOfWeightingNonGaapNetIncome
Namespace Prefix:	usat_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Name:	us-gaap_SubsequentEventLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration