Divestitures	12 Months Ended
Sep. 30, 2019
Business Combinations [Abstract]
Divestitures	16. Divestitures SoLayTec On December 24, 2014, we acquired a 51% controlling interest in SoLayTec, which provides ALD systems used in high efficiency solar cells, for a total purchase price consideration of $1.9 million. On July 31, 2017, Tempress entered into an Exit Agreement (the “Agreement”) with the two minority owners of SoLayTec (“Minority Owners”) to acquire their remaining shares of SoLayTec, resulting in Tempress becoming the sole owner of SoLayTec. The terms of the Agreement, which was effective as of July 1, 2017, state that the Minority Owners will sell all of their SoLayTec shares to Tempress for a nominal fee and waive all right to future repayment of principal and interest on loans payable to the Minority Owners. As a result of the effectiveness of the Agreement, SoLayTec has no further liability under the loans. The amount of principal and interest forgiven was approximately $2.4 million, which was recorded as a capital contribution, with no impact on the Consolidated Statement of Operations. The carrying value of the non-controlling interest at the date of the Agreement was $2.7 million. Under our previously announced plan to exit our solar business (see Note 2), on June 7, 2019 (“Sale Date”), we completed the sale of SoLayTec to a third party located in the Netherlands. Upon the Sale Date, we recognized a gain of approximately $1.6 million, which we included in loss from discontinued operations reported in our Consolidated Statements of Operations for the year ended September 30, 2019. Effective on the Sale Date, SoLayTec is no longer included in our consolidated financial statements. SoLayTec is not material to Amtech’s results of operations or financial position. Kingstone On September 16, 2015, we reduced our ownership to 15% in Kingstone Hong Kong. Our investment in Kingstone Hong Kong was accounted for using the equity method for periods subsequent to the deconsolidation due to our ability to exert significant influence over the financial and operating policies of Kingstone Hong Kong, primarily through our representation on the board of directors. The resulting equity method investment was initially recorded at fair value at $2.7 million using the value the third-party purchaser placed on their investment in Kingstone Shanghai. The carrying value of the equity method investment in Kingstone Hong Kong was $2.6 million as of September 30, 2017. Effective June 29, 2018, we sold our remaining ownership interest in Kingstone Hong Kong to the majority owner for approximately $5.7 million, which was received in August 2018. We recognized a pre-tax gain of approximately $2.9 million, which is reported as gain on sale of other assets in our Consolidated Statements of Operations for the year ended September 30, 2018.

Divestitures

12 Months Ended

Sep. 30, 2019

16. Divestitures

SoLayTec

On December 24, 2014, we acquired a 51% controlling interest in SoLayTec, which provides ALD systems used in high efficiency solar cells, for a total purchase price consideration of $1.9 million. On July 31, 2017, Tempress entered into an Exit Agreement (the “Agreement”) with the two minority owners of SoLayTec (“Minority Owners”) to acquire their remaining shares of SoLayTec, resulting in Tempress becoming the sole owner of SoLayTec. The terms of the Agreement, which was effective as of July 1, 2017, state that the Minority Owners will sell all of their SoLayTec shares to Tempress for a nominal fee and waive all right to future repayment of principal and interest on loans payable to the Minority Owners. As a result of the effectiveness of the Agreement, SoLayTec has no further liability under the loans. The amount of principal and interest forgiven was approximately $2.4 million, which was recorded as a capital contribution, with no impact on the Consolidated Statement of Operations. The carrying value of the non-controlling interest at the date of the Agreement was $2.7 million. Under our previously announced plan to exit our solar business (see Note 2), on June 7, 2019 (“Sale Date”), we completed the sale of SoLayTec to a third party located in the Netherlands. Upon the Sale Date, we recognized a gain of approximately $1.6 million, which we included in loss from discontinued operations reported in our Consolidated Statements of Operations for the year ended September 30, 2019. Effective on the Sale Date, SoLayTec is no longer included in our consolidated financial statements. SoLayTec is not material to Amtech’s results of operations or financial position.

Kingstone

On September 16, 2015, we reduced our ownership to 15% in Kingstone Hong Kong. Our investment in Kingstone Hong Kong was accounted for using the equity method for periods subsequent to the deconsolidation due to our ability to exert significant influence over the financial and operating policies of Kingstone Hong Kong, primarily through our representation on the board of directors. The resulting equity method investment was initially recorded at fair value at $2.7 million using the value the third-party purchaser placed on their investment in Kingstone Shanghai. The carrying value of the equity method investment in Kingstone Hong Kong was $2.6 million as of September 30, 2017.

Effective June 29, 2018, we sold our remaining ownership interest in Kingstone Hong Kong to the majority owner for approximately $5.7 million, which was received in August 2018. We recognized a pre-tax gain of approximately $2.9 million, which is reported as gain on sale of other assets in our Consolidated Statements of Operations for the year ended September 30, 2018.