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Comprehensive Income (Loss) (Tables) | 9 Months Ended
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Jun. 30, 2012
Comprehensive Income (Loss) [Abstract] |
Schedule of Comprehensive Income (Loss) |
| Three Months Ended June 30, |  | Nine Months Ended June 30,
| 2012 |  | 2011 |  | 2012 |  | 2011
| (dollars in thousands) |  | (dollars in thousands)
Net income (loss), as reported | $ | (4,071 | ) |  | $ | 7,060 |  |  | $ | (11,234 | ) |  | $ | 19,546 |
Foreign currency translation adjustment | (3,851 | ) |  | 1,446 |  |  | (5,380 | ) |  | 3,905 |
Comprehensive income (loss) | (7,922 | ) |  | 8,506 |  |  | (16,614 | ) |  | 23,451 |
Comprehensive loss attributable to noncontrolling interest | 1,106 |  |  | 238 |  |  | 2,314 |  |  | 261 |
Comprehensive income (loss) attributable to Amtech Systems, Inc. | $ | (6,816 | ) |  | $ | 8,744 |  |  | $ | (14,300 | ) |  | $ | 23,712 |

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- Definition Tabular disclosure of components of comprehensive income (loss) including, but not limited to: (a) foreign currency translation adjustments; (b) gains (losses) on foreign currency transactions that are designated as, and are effective as, economic hedges of a net investment in a foreign entity; (c) gains (losses) on intercompany foreign currency transactions that are of a long-term-investment nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements; (d) change in the market value of a futures contract that qualifies as a hedge of an asset reported at fair value; (e) unrealized holding gains (losses) on available-for-sale securities and that resulting from transfers of debt securities from the held-to-maturity category to the available-for-sale category; (f) a net loss recognized as an additional pension liability not yet recognized as net periodic pension cost; and (g) the net gain (loss) and net prior service cost or credit for pension plans and other postretirement benefit plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=20435746&loc=d3e526-108580 + Details
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