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Debt Convertible Notes (Details) - USD ($) | Jul. 31, 2015 | Jul. 08, 2015 | Sep. 30, 2015 | May. 12, 2015 | Dec. 31, 2014 | Aug. 01, 2014
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Senior Secured Revolving Credit Facility |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Line of credit facility, minimum borrowing capacity |  | $ 5,000,000.0 |  |  |  |
Convertible Debt | Censtar Convertible Debt |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Stated percentage interest rate |  | 5.00% |  |  |  |
Exercise of conversion rights term |  | 18 months |  |  |  |
Convertible Debt | Oasis Power Holdings Convertible Debt |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Stated percentage interest rate | 5.00% |  |  |  |  |
Conversion price per share |  |  |  | $ 14.00 |  |
Exercise of conversion rights term | 18 months |  |  |  |  |
Beneficial conversion feature | $ 800,000 |  |  |  |  |
Common Class B |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Common stock, par value | $ 0.01 | $ 0.01 | $ 0.01 |  | $ 0.01 | $ 0.01
Common Class B | Convertible Debt | Censtar Convertible Debt |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Conversion price per share |  | $ 16.57 |  |  |  |
Common Class B | Convertible Debt | Oasis Power Holdings Convertible Debt |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Conversion price per share | 14.00 |  |  |  |  |
Common Class A |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Common stock, par value |  |  | $ 0.01 |  | $ 0.01 |
Shares issued, price per share | $ 16.21 |  |  |  |  |
CenStar | Convertible Debt | Censtar Convertible Debt |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Convertible debt |  | $ 2,100,000 |  |  |  |
Oasis Power Holdings | Convertible Debt | Oasis Power Holdings Convertible Debt |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Convertible debt | $ 5,000,000 |  |  |  |  |

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- Definition Face amount or stated value per share of common stock. + 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 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 + Details
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- Definition Including the current and noncurrent portions, carrying amount of debt identified as being convertible into another form of financial instrument (typically the entity's common stock) as of the balance sheet date, which originally required full repayment more than twelve months after issuance or greater than the normal operating cycle of the company. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16(a)(2)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 + Details
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