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Note 7 - Intangible Assets (Tables) | 3 Months Ended
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Sep. 30, 2016
Notes Tables |
Schedule of Intangible Assets, Excluding Goodwill [Table Text Block] |
|  | Customer Relationships |  | Trademarks |  | Other |  |  | Total |
September 3 0 , 201 6 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost |  | $ | 46,256 |  |  | $ | 17,285 |  |  | $ | 4,366 |  |  | $ | 67,907 |
Accumulated amortization |  |  | (25,697 | ) |  |  | - |  |  |  | (2,662 | ) |  |  | (28,359 | )
Balance, September 30, 2016 |  | $ | 20,559 |  |  | $ | 17,285 |  |  | $ | 1,704 |  |  | $ | 39,548 |
June 30, 201 6 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost |  | $ | 46,297 |  |  | $ | 17,263 |  |  | $ | 4,471 |  |  | $ | 68,031 |
Accumulated amortization |  |  | (24,892 | ) |  |  | - |  |  |  | (2,727 | ) |  |  | (27,619 | )
Balance, June 30, 2016 |  | $ | 21,405 |  |  | $ | 17,263 |  |  | $ | 1,744 |  |  | $ | 40,412 |

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- Definition Tabular disclosure of intangible assets excluding goodwill. + References No definition available. + Details
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Namespace Prefix: | sxi_
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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