Shareholder Rights Plan (Details) - Series A Preferred Stock - $ / shares	Oct. 08, 2015	Dec. 15, 2008
Equity, Class of Treasury Stock [Line Items]
Class of warrant or right, number of securities called by warrants or rights (in shares)		0.001
Class of warrant or right, exercise price (usd per share)		$ 51.60
Expiration period		10 years
Common stock ownership threshold		15.00%
Collective ownership threshold for joint filers	19.90%

Class Of Warrant Or Right, Exercisable, Common Stock Ownership Percentage Threshold

No definition available.

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- Definition

Class Of Warrant Or Right, Expiration Period

+ References

No definition available.

+ Details

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- Definition

Common Stock, Collective Ownership Threshold For Joint Filers

+ References

No definition available.

+ Details

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Namespace Prefix:	asys_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i)(4))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i)(2))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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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.

+ References

No definition available.

+ Details

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