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Segment Information and Foreign Operations (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014 Segment	Dec. 31, 2013	Dec. 31, 2012
Segment Information [Abstract]
Number of operating segments									1us-gaap_NumberOfOperatingSegments
Net revenues reported for products shipped to customers in corresponding geographic region [Abstract]
Net revenue	$ 19,567us-gaap_Revenues	$ 23,138us-gaap_Revenues	$ 21,449us-gaap_Revenues	$ 19,345us-gaap_Revenues	$ 18,603us-gaap_Revenues	$ 20,521us-gaap_Revenues	$ 22,831us-gaap_Revenues	$ 22,380us-gaap_Revenues	$ 83,499us-gaap_Revenues	$ 85,335us-gaap_Revenues	$ 88,374us-gaap_Revenues
Long-lived assets by geographic region [Abstract]
Long-lived assets	33,862us-gaap_PropertyPlantAndEquipmentNet				37,621us-gaap_PropertyPlantAndEquipmentNet				33,862us-gaap_PropertyPlantAndEquipmentNet	37,621us-gaap_PropertyPlantAndEquipmentNet
China [Member]
Long-lived assets by geographic region [Abstract]
Long-lived assets	33,726us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = country_CN				37,417us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = country_CN				33,726us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = country_CN	37,417us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = country_CN
United States of America [Member]
Long-lived assets by geographic region [Abstract]
Long-lived assets	136us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = country_US				204us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = country_US				136us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = country_US	204us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = country_US
Reportable Geographical Components [Member] | Europe [Member]
Net revenues reported for products shipped to customers in corresponding geographic region [Abstract]
Net revenue									21,535us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_ReportableGeographicalComponentsMember / us-gaap_StatementGeographicalAxis = us-gaap_EuropeMember	21,387us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_ReportableGeographicalComponentsMember / us-gaap_StatementGeographicalAxis = us-gaap_EuropeMember	18,170us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_ReportableGeographicalComponentsMember / us-gaap_StatementGeographicalAxis = us-gaap_EuropeMember
Reportable Geographical Components [Member] | China [Member]
Net revenues reported for products shipped to customers in corresponding geographic region [Abstract]
Net revenue									17,451us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_ReportableGeographicalComponentsMember / us-gaap_StatementGeographicalAxis = country_CN	24,946us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_ReportableGeographicalComponentsMember / us-gaap_StatementGeographicalAxis = country_CN	19,815us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_ReportableGeographicalComponentsMember / us-gaap_StatementGeographicalAxis = country_CN
Reportable Geographical Components [Member] | North America [Member]
Net revenues reported for products shipped to customers in corresponding geographic region [Abstract]
Net revenue									10,292us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_ReportableGeographicalComponentsMember / us-gaap_StatementGeographicalAxis = us-gaap_NorthAmericaMember	10,665us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_ReportableGeographicalComponentsMember / us-gaap_StatementGeographicalAxis = us-gaap_NorthAmericaMember	15,391us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_ReportableGeographicalComponentsMember / us-gaap_StatementGeographicalAxis = us-gaap_NorthAmericaMember
Reportable Geographical Components [Member] | Japan [Member]
Net revenues reported for products shipped to customers in corresponding geographic region [Abstract]
Net revenue									11,550us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_ReportableGeographicalComponentsMember / us-gaap_StatementGeographicalAxis = country_JP	9,041us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_ReportableGeographicalComponentsMember / us-gaap_StatementGeographicalAxis = country_JP	9,346us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_ReportableGeographicalComponentsMember / us-gaap_StatementGeographicalAxis = country_JP
Reportable Geographical Components [Member] | Taiwan [Member]
Net revenues reported for products shipped to customers in corresponding geographic region [Abstract]
Net revenue									11,464us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_ReportableGeographicalComponentsMember / us-gaap_StatementGeographicalAxis = country_TW	10,131us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_ReportableGeographicalComponentsMember / us-gaap_StatementGeographicalAxis = country_TW	10,985us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_ReportableGeographicalComponentsMember / us-gaap_StatementGeographicalAxis = country_TW
Reportable Geographical Components [Member] | Asia Pacific (excluding China, Japan and Taiwan) [Member]
Net revenues reported for products shipped to customers in corresponding geographic region [Abstract]
Net revenue									$ 11,207us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_ReportableGeographicalComponentsMember / us-gaap_StatementGeographicalAxis = axti_AsiaPacificExcludingJapanAndTaiwanMember	$ 9,165us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_ReportableGeographicalComponentsMember / us-gaap_StatementGeographicalAxis = axti_AsiaPacificExcludingJapanAndTaiwanMember	$ 14,667us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_ReportableGeographicalComponentsMember / us-gaap_StatementGeographicalAxis = axti_AsiaPacificExcludingJapanAndTaiwanMember

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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