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Note 7 - Intangible Assets (Tables) | 3 Months Ended
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Sep. 30, 2015
Disclosure Text Block [Abstract] |
Schedule of Intangible Assets Excluding Goodwill [Table Text Block] |
|  | Customer Relationships |  |  | Trademarks |  |  | Other |  |  | Total |
September 30, 2015 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost |  | $ | 43,281 |  |  | $ | 15,513 |  |  | $ | 4,128 |  |  | $ | 62,922 |
Accumulated amortization |  |  | (23,144 | ) |  |  | - |  |  |  | (2,511 | ) |  |  | (25,655 | )
Balance, September 30, 2015 |  | $ | 20,137 |  |  | $ | 15,513 |  |  | $ | 1,617 |  |  | $ | 37,267 |
June 30, 2015 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost |  | $ | 43,493 |  |  | $ | 15,514 |  |  | $ | 4,096 |  |  | $ | 63,103 |
Accumulated amortization |  |  | (22,628 | ) |  |  | - |  |  |  | (2,427 | ) |  |  | (25,055 | )
Balance, June 30, 2015 |  | $ | 20,865 |  |  | $ | 15,514 |  |  | $ | 1,669 |  |  | $ | 38,048 |

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- Definition Tabular disclosure of intangible assets that exclude goodwill. + References No definition available. + Details
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Namespace Prefix: | sxi_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration