SUBSEQUENT EVENTS (Detail Textuals 1) (USD $)	0 Months Ended
Jul. 10, 2012
Subsequent Events [Abstract]
Percentage of minimum prime rate as published in The Wall Street Journal	2.00%
Line of credit facility, Basis measurement	Prime Rate
Interest rate percentage	5.00%
Minimum interest payable	$ 20,000
Unrestricted cash balance with the bank	$ 3,000,000

This element represents the carrying amounts of cash and cash equivalent items which are not restricted to withdrawal or usage.

No definition available.

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