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Long-term Debt (Details) - USD ($) $ in Thousands | 3 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2015 | Sep. 30, 2015 | Jan. 30, 2015
Debt Instrument [Line Items] |  |  |
Current maturities of long-term debt | $ 822 | $ 919 |
BTU International, Inc (BTU) Merger |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt acquired |  |  | $ 7,200
SoLayTec, B.V. |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt | 3,200 |  |
Proceeds from issuance of debt | $ 800 |  |
SoLayTec, B.V. | Minimum |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate | 5.95% |  |
SoLayTec, B.V. | Maximum |  |  |
Debt Instrument [Line Items] |  |  |
Interest rate | 10.00% |  |
Mortgage Note |  |  |
Debt Instrument [Line Items] |  |  |
Debt covenant, outstanding principal plus accrued interest percent of appraised value, maximum threshold | 80.00% |  |
Current maturities of long-term debt | $ 100 |  |
Mortgage Note | BTU International, Inc (BTU) Merger |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt | $ 6,800 |  |
Interest rate |  |  | 4.40%
Federal Home Loan Board Five Year Classic Advance Rate | Mortgage Note |  |  |
Debt Instrument [Line Items] |  |  |
Basis spread on variable rate | 240.00% |  |

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- Definition Amount of long-term debt due after one year or the normal operating cycle, if longer, assumed at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56956791&loc=d3e4845-128472 + Details
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