Stockholders' equity - Common Stock and Receivable from Shareholder (Details) |
1 Months Ended | ||||||
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May 18, 2017
shares
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Apr. 13, 2016 |
May 03, 2016
shares
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Dec. 31, 2017
shares
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Dec. 31, 2016
shares
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Apr. 30, 2016 |
Feb. 13, 2013
shares
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Class of Stock [Line Items] | |||||||
Conversion ratio of restricted Ilios shares to Company common shares | 7.86 | ||||||
Shares issued in acquisition (shares) | 4,662,937 | ||||||
Common stock, shares outstanding | 24,766,892 | 19,981,912 | |||||
Preferred stock, shares authorized | 10,000,000 | ||||||
Private Placement | Common stock | |||||||
Class of Stock [Line Items] | |||||||
Shares issued in exchange for Ilios shares (shares) | 670,464 | ||||||
Percentage of voting interests acquired (percent) | 100.00% | ||||||
American DG Energy | |||||||
Class of Stock [Line Items] | |||||||
Outstanding common shares acquired (percent) | 100.00% |
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- Definition Conversion Ratio of Restricted Shares to Common Shares No definition available.
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- Definition Number of shares of equity interests issued or issuable to acquire entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Percentage of voting equity interests acquired at the acquisition date in the business combination. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Number of shares of stock issued during the period pursuant to acquisitions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Percentage of subsidiary's or equity method investee's stock owned by parent immediately after all stock transactions. No definition available.
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