Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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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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The net result for the period of deducting operating expenses from operating revenues.

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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Business Segment Information (Details) $ in Thousands	3 Months Ended		9 Months Ended
Business Segment Information (Details) $ in Thousands	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($) segment	Jun. 30, 2014 USD ($)	Dec. 24, 2014	Sep. 30, 2014 USD ($)
Segment Reporting Information [Line Items]
Number of business segments \| segment			3
Net Revenues	$ 40,016	$ 9,190	$ 76,685	$ 36,678
Operating Income (Loss)	(1,234)	(3,871)	(7,962)	(8,884)
Identifiable Assets	134,055		134,055			$ 89,904
Solar
Segment Reporting Information [Line Items]
Net Revenues	24,392	4,632	42,141	21,137
Operating Income (Loss)	1,232	(3,425)	(1,987)	(7,751)
Identifiable Assets	65,212		65,212			56,858
Semiconductor
Segment Reporting Information [Line Items]
Net Revenues	12,945	2,132	25,765	8,478
Operating Income (Loss)	(1,113)	179	(483)	927
Identifiable Assets	54,559		54,559			5,593
Polishing
Segment Reporting Information [Line Items]
Net Revenues	2,679	2,426	8,779	7,063
Operating Income (Loss)	574	654	1,917	1,622
Identifiable Assets	6,078		6,078			6,253
Non-segment related
Segment Reporting Information [Line Items]
Operating Income (Loss)	(1,927)	$ (1,279)	(7,409)	$ (3,682)
Identifiable Assets	$ 8,206		$ 8,206			$ 21,200
SoLayTec, B.V.
Segment Reporting Information [Line Items]
Percentage of voting interests acquired					51.00%
Product Concentration Risk \| Sales Revenue, Product Line \| Semiconductor
Segment Reporting Information [Line Items]
Concentration risk, percentage (less than 25%)			25.00%