Subsequent Event (Notes)	9 Months Ended
Jun. 30, 2015
Subsequent Events [Abstract]
Subsequent Event	Subsequent Event In July 2015, subsequent to the third fiscal quarter, the Company's Board of Directors authorized a restructuring of the Company’s investment in Kingstone Technology Hong Kong Limited (“Kingstone Hong Kong”), a subsidiary of the Company in which the Company currently owns 55% of the capital stock. As part of the restructuring, the Kingstone Hong Kong and Suzhou Zhuo Jing Investment Center (LP) (“Suzhou”) entered into an Investment Agreement (the “Agreement”), pursuant to which the parties agreed upon a series of transactions which will result in Suzhou owning 31.25% of the capital stock of Shanghai Kingstone Semiconductor Company, Ltd. (“Shanghai Kingstone”), Kingstone Hong Kong’s wholly owned subsidiary. Closing of the transactions is expected to occur on or before August 31, 2015. Following completion of the transactions, Kingstone Hong Kong will own 68.75% of the capital stock of Shanghai Kingstone and Suzhou will own 31.25%. Upon closing of the transactions, the Company will receive approximately US$4,000,000 for a portion of its equity ownership in Kingstone Hong Kong, which will be decreased from 55% to 15%. In addition, upon closing of the transactions, the Company will be repaid the outstanding principal amount of US$4,000,000 under the Solar Tool Loan Agreement dated December 9, 2011. Closing of the transactions is also subject to Shanghai Kingstone and Kingstone Hong Kong executing a Sales and Service Agreement that (i) reaffirms the Company’s exclusive right to sell and service the products of Shanghai Kingstone (subject to Shanghai Kingstone’s right to sell and service products of Shanghai Kingstone in China), (ii) provides that Shanghai Kingstone and/or Kingstone Hong Kong will purchase from the Company such exclusive right for US$5,600,000 by the earlier of (a) March 31, 2016 or (b) the commencement of any public offering process of Shanghai Kingstone, and (iii) confirms the Company’s non-exclusive sales and service right in connection with the products of Shanghai Kingstone after the purchase in item (ii) has been consummated. If any of the closing conditions set forth in the Agreement are not fulfilled or waived before August 31, 2015 (or any other date as agreed by the parties), then any party may terminate this Agreement without any further obligation to the other party. The transaction is subject to customary closing conditions and regulatory approvals in both Shanghai and Hong Kong.

Subsequent Event

In July 2015, subsequent to the third fiscal quarter, the Company's Board of Directors authorized a restructuring of the Company’s investment in Kingstone Technology Hong Kong Limited (“Kingstone Hong Kong”), a subsidiary of the Company in which the Company currently owns 55% of the capital stock. As part of the restructuring, the Kingstone Hong Kong and Suzhou Zhuo Jing Investment Center (LP) (“Suzhou”) entered into an Investment Agreement (the “Agreement”), pursuant to which the parties agreed upon a series of transactions which will result in Suzhou owning 31.25% of the capital stock of Shanghai Kingstone Semiconductor Company, Ltd. (“Shanghai Kingstone”), Kingstone Hong Kong’s wholly owned subsidiary. Closing of the transactions is expected to occur on or before August 31, 2015.

Following completion of the transactions, Kingstone Hong Kong will own 68.75% of the capital stock of Shanghai Kingstone and Suzhou will own 31.25%. Upon closing of the transactions, the Company will receive approximately US$4,000,000 for a portion of its equity ownership in Kingstone Hong Kong, which will be decreased from 55% to 15%. In addition, upon closing of the transactions, the Company will be repaid the outstanding principal amount of US$4,000,000 under the Solar Tool Loan Agreement dated December 9, 2011. Closing of the transactions is also subject to Shanghai Kingstone and Kingstone Hong Kong executing a Sales and Service Agreement that (i) reaffirms the Company’s exclusive right to sell and service the products of Shanghai Kingstone (subject to Shanghai Kingstone’s right to sell and service products of Shanghai Kingstone in China), (ii) provides that Shanghai Kingstone and/or Kingstone Hong Kong will purchase from the Company such exclusive right for US$5,600,000 by the earlier of (a) March 31, 2016 or (b) the commencement of any public offering process of Shanghai Kingstone, and (iii) confirms the Company’s non-exclusive sales and service right in connection with the products of Shanghai Kingstone after the purchase in item (ii) has been consummated. If any of the closing conditions set forth in the Agreement are not fulfilled or waived before August 31, 2015 (or any other date as agreed by the parties), then any party may terminate this Agreement without any further obligation to the other party. The transaction is subject to customary closing conditions and regulatory approvals in both Shanghai and Hong Kong.