Suncore Joint Venture (Details) (USD $)	12 Months Ended			1 Months Ended	12 Months Ended			0 Months Ended	3 Months Ended			1 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013 Suncore	Sep. 30, 2013 Suncore	Sep. 30, 2012 Suncore	Jun. 30, 2013 Suncore	Sep. 21, 2012 CPV	Dec. 31, 2013 CPV	Oct. 31, 2013 CPV	Nov. 30, 2011 CPV	Mar. 31, 2013 Emcore Solar New Mexico
CPV Solar Cell License Agreement:
License agreement, expected proceeds over term										$ 800,000	$ 2,500,000
Licenses Revenue									800,000
Summarized Financial Information:
Equity method investment, ownership percentage							40.00%
Equity method investment, purchase price				4,800,000	4,800,000
Equity method investment, sale of interest, deferred revenue				3,300,000	3,300,000
Gain on sale of equity method investment	0	4,800,000	0	4,800,000
Proceeds from sale of assets	0	1,150,000	13,121,000					2,800,000
Proceeds from sale of assets and ownership interest												1,500,000
Recognized gain on sale of assets and ownership interest												300,000
Equity method investment, revenue					15,900,000	6,200,000
Loss from equity method investment	0	0	(1,201,000)			(1,200,000)
Equity method investment				$ 300,000	$ 300,000