Acquisition - Consideration Transferred (Details) (BTU International, Inc (BTU) Merger, USD $) In Thousands, except Per Share data, unless otherwise specified	0 Months Ended
Jan. 30, 2015	Jan. 30, 2015
Business Acquisition [Line Items]
Exchange ratio	0.3291
Amtech common stock issued for consideration	3,186
Amtech common stock per share price on January 30, 2015	$ 8.20us-gaap_SharePrice	$ 8.20us-gaap_SharePrice
Consideration for BTU common shares and restricted stock units	$ 26,125
Total fair value of consideration transferred	$ 26,625
Common And Restricted Shares
Business Acquisition [Line Items]
BTU common shares and restricted stock units exchanged	9,681
Stock Options
Business Acquisition [Line Items]
BTU common shares and restricted stock units exchanged	500

Business Combination, Consideration Transferred For Common And Restricted Stock Units

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- Definition

Conversion Of Stock, Conversion Ratio, Shares Of Stock Exchanged Per Each Share Of Subsidiary Stock

+ References

No definition available.

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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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- Definition

The number of shares converted in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References

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- Definition

The number of shares issued as [noncash or part noncash] consideration for a business or asset acquired. Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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- Definition

Price of a single share of a number of saleable stocks of a company.

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