Earnings Per Share & Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Sep. 30, 2016 |
Jun. 30, 2016 |
Mar. 31, 2016 |
Dec. 31, 2015 |
Sep. 30, 2015 |
Jun. 30, 2015 |
Mar. 31, 2015 |
Dec. 31, 2014 |
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2014 |
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| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | |||||||||||
| Net loss attributable to Amtech Systems, Inc. | $ (285) | $ (1,209) | $ (1,499) | $ (4,015) | $ 1,349 | $ (1,604) | $ (2,321) | $ (5,195) | $ (7,008) | $ (7,771) | $ (13,047) |
| Weighted average shares outstanding (in shares) | 13,177 | 13,173 | 13,169 | 13,152 | 13,150 | 13,103 | 11,997 | 9,854 | 13,168 | 12,022 | 9,732 |
| Basic loss per share attributable to Amtech shareholders (dollars per share) | $ (0.02) | $ (0.09) | $ (0.11) | $ (0.31) | $ 0.10 | $ (0.12) | $ (0.19) | $ (0.53) | $ (0.53) | $ (0.65) | $ (1.34) |
| Weighted average shares outstanding, common stock equivalents (in shares) | 0 | 0 | 0 | ||||||||
| Weighted average shares outstanding, diluted shares (in shares) | 13,177 | 13,173 | 13,169 | 13,152 | 13,259 | 13,103 | 11,997 | 9,854 | 13,168 | 12,022 | 9,732 |
| Diluted loss per share attributable to Amtech shareholders (dollars per share) | $ (0.02) | $ (0.09) | $ (0.11) | $ (0.31) | $ 0.10 | $ (0.12) | $ (0.19) | $ (0.53) | $ (0.53) | $ (0.65) | $ (1.34) |
| Stock Options and Restricted Stock | |||||||||||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | |||||||||||
| Antidilutive securities excluded from the computation of earnings per share | 1,840 | 1,640 | 1,099 | ||||||||
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- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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