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ACCOUNTING POLICIES (Detail Textuals 4) (Stock options, USD $) | 12 Months Ended
--- | ---
Jun. 30, 2012 | Jun. 30, 2011 | Jun. 30, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Options Expired | (45,333) | (69,334) |
Exercise Price $7.50 |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Options Expired | 42,333 |  |
Options, Outstanding, Exercise Price Per Share | 7.50 | 7.50 |
Exercise Price $8.00 |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Options Expired | 3,000 |  |
Options, Outstanding, Exercise Price Per Share | 8.00 | 8.00 |

X
- Definition This element represents exercise price per share of options outstanding. + References No definition available. + Details
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Namespace Prefix: | usat_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

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- Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(4) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(g) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration