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Investment In ValveXchange (Details) - USD ($) | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Jul. 31, 2011 | Dec. 31, 2014 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2012
Schedule of Cost-method Investments [Line Items] |  |  |  |  |
Other non-operating expense recorded to write-down long-term note receivable from ValveXchange |  | $ 2,000,000 |  |  |
ValveXchange, Inc. [Member] | Revolving Credit Facility [Member] |  |  |  |  |
Schedule of Cost-method Investments [Line Items] |  |  |  |  |
Loans receivable, revolving credit line, maximum capacity | $ 2,000,000 |  |  |  |
Credit facility maturity date |  |  | Jul. 30, 2018 |  |
Credit facility aggregate interest rate | 8.00% |  |  |  |
Loan advances |  |  |  |  | $ 2,000,000
Long-term note receivable |  |  | $ 0 | $ 0 |
Series A Junior Participating Preferred Stock [Member] | ValveXchange, Inc. [Member] |  |  |  |  |
Schedule of Cost-method Investments [Line Items] |  |  |  |  |
Preferred stock purchased, value | $ 3,500,000 |  |  |  |
Preferred stock carrying value |  |  | $ 0 | $ 0 |

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- Definition Amount, after adjustment, of cost-method investment. Adjustments include, but are not limited to, dividends received in excess of earnings after date of investment that are considered a return of investment and other than temporary impairments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6872867&loc=d3e40691-111596 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -SubTopic 20 -Section 35 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=29638308&loc=d3e40346-111594 + Details
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