XML 47 R21.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Basis of Presentation - Concentrations of Credit Risk (Details) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 31, 2013 Accounts Receivable [Member] Customers | Mar. 31, 2013 Accounts Receivable [Member] Customer One [Member] | Mar. 31, 2013 Accounts Receivable [Member] Customer Two [Member] | Mar. 31, 2013 Accounts Receivable [Member] Customer Three [Member] | Mar. 31, 2013 UNITED STATES Cash and Cash Equivalents and Restricted Cash [Member]
Concentration Risk [Line Items] |  |  |  |  |
Number of customers | 3 |  |  |  |
Concentration risk, percentage |  | 13.00% | 13.00% | 12.00% | 50.00%

X
- Definition Number Of Customers + References No definition available. + Details
Name: | asys_NumberOfCustomers
Namespace Prefix: | asys_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_ConcentrationRiskLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6351-108592 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13537-108611 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6404-108592 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13531-108611 + Details
Name: | us-gaap_ConcentrationRiskPercentage1
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration