The Company and Summary of Significant Accounting Policies (Details)	3 Months Ended
Mar. 31, 2018 company
Basis of Presentation
Equity method investments	7

Represents the number of minority investment entities that are not consolidated and are accounted for under the equity method.

No definition available.

Name:	axti_MinorityInvestmentEntitiesNotConsolidatedAccountedForByEquityMethod
Namespace Prefix:	axti_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration