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) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015 segment	Mar. 31, 2014	Sep. 30, 2014	Dec. 24, 2014
Segment Reporting Information [Line Items]
Number of business segments			3us-gaap_NumberOfOperatingSegments
Net Revenues	$ 24,273us-gaap_SalesRevenueNet	$ 12,717us-gaap_SalesRevenueNet	$ 36,669us-gaap_SalesRevenueNet	$ 27,488us-gaap_SalesRevenueNet
Operating Income (Loss)	(1,936)us-gaap_OperatingIncomeLoss	(4,534)us-gaap_OperatingIncomeLoss	(6,728)us-gaap_OperatingIncomeLoss	(5,013)us-gaap_OperatingIncomeLoss
Identifiable Assets	145,782us-gaap_Assets		145,782us-gaap_Assets		89,904us-gaap_Assets
Solar
Segment Reporting Information [Line Items]
Net Revenues	9,463	8,017	17,749	16,505
Operating Income (Loss)	(724)	(4,133)	(3,219)	(4,326)
Identifiable Assets	67,669		67,669		56,858
Semiconductor
Segment Reporting Information [Line Items]
Net Revenues	12,088	2,271	12,820	6,346
Operating Income (Loss)	730	207	630	748
Identifiable Assets	58,292		58,292		5,593
Polishing
Segment Reporting Information [Line Items]
Net Revenues	2,722	2,429	6,100	4,637
Operating Income (Loss)	601	550	1,343	968
Identifiable Assets	5,887		5,887		6,253
Non-segment related
Segment Reporting Information [Line Items]
Operating Income (Loss)	(2,543)	(1,158)	(5,482)	(2,403)
Identifiable Assets	$ 13,934		$ 13,934		$ 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%