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Share Capital (Details Textual) $ / shares in Units, $ in Thousands |  | 6 Months Ended | 9 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 14, 2019 USD ($) $ / shares shares | Jun. 30, 2019 USD ($) | Jun. 30, 2018 USD ($) | Sep. 30, 2019 USD ($) vote shares | Sep. 30, 2018 USD ($) | Oct. 18, 2019 shares | Dec. 31, 2018 shares | Mar. 31, 2018 shares | Dec. 31, 2017 shares | Mar. 07, 2017 $ / shares
Share Capital [Line Items] |  |  |  |  |  |  |  |  |  |
Issuance of common and convertible preference shares |  |  |  | $ 98,620 |  |  |  |  |  |
Expenses for convertible preference shares |  |  | $ (97) |  |  |  |  |  |  |
Series 4 Convertible Preferred Stock |  |  |  |  |  |  |  |  |  |
Share Capital [Line Items] |  |  |  |  |  |  |  |  |  |
Proceeds from issuance of common and convertible preference shares, net of issuance costs |  |  |  | $ 98,620 | $ 0 |  |  |  |  |
Preferred Stock |  |  |  |  |  |  |  |  |  |
Share Capital [Line Items] |  |  |  |  |  |  |  |  |  |
Proceeds from issuance of common and convertible preference shares, net of issuance costs | $ 98,620 |  |  |  |  |  |  |  |  |
Shares outstanding (shares) | shares |  |  |  | 145,000,000 |  |  |  | 95,000,000 |  |
Preferred Stock | Series 4 Convertible Preferred Stock |  |  |  |  |  |  |  |  |  |
Share Capital [Line Items] |  |  |  |  |  |  |  |  |  |
Preferred Stock, Liquidation Preference Per Share | $ / shares |  |  |  |  |  |  |  |  |  | $ 1,000
Preferred Stock, Conversion Price Per Preference Share | $ / shares | $ 7.42 |  |  |  |  |  |  |  |  | $ 10.00
Preferred Stock, Accretion of Redemption Discount |  |  |  | $ 7 |  |  |  |  |  |
Preferred Stock, Liquidation Preference, Value |  |  |  | $ 116 |  |  |  |  |  |
Shares outstanding (shares) | shares |  |  |  | 145,000,000 |  |  |  |  | 95,000 |
Expenses for convertible preference shares |  |  | $ (97) |  |  |  |  |  |  |
Preferred Stock, Conversion Basis, Common Stock Class A Closing Trade Price |  |  |  |  | 125.00% |  |  |  |  |
Preferred Stock, Liquidation Preference Percentage Rate, Change of Control of the Company |  |  |  |  | 7.00% |  |  |  |  |
Preferred Stock | Series 6 Convertible Preferred Stock |  |  |  |  |  |  |  |  |  |
Share Capital [Line Items] |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Issued For Services, Convertible Preferred Shares | shares | 50,000 |  |  |  |  |  |  |  |  |
Proceeds from issuance of common and convertible preference shares, net of issuance costs | $ 50,000 |  |  |  |  |  |  |  |  |
Preferred Stock, Liquidation Preference Per Share | $ / shares | $ 1,000 |  |  |  |  |  |  |  |  |
Preferred Stock, Conversion Price Per Preference Share | $ / shares | $ 5.00 |  |  |  |  |  |  |  |  |
Preferred Stock, Accretion Percentage, Preference | 8.00% |  |  |  |  |  |  |  |  |
Preferred Stock, Convertible Preference Shares, Accretion Period | 5 years |  |  |  |  |  |  |  |  |
Preferred Stock, Accretion of Redemption Discount |  | $ 2 |  |  |  |  |  |  |  |
Preferred Stock, Liquidation Preference, Value |  |  |  | $ 52 |  |  |  |  |  |
Preferred Stock, Convertible Preference Shares, Convertible at Company's Option, Term | 2 years |  |  |  |  |  |  |  |  |
Preferred Stock, Conversion Basis, Common Stock Class A Closing Trade Price | 125.00% |  |  |  |  |  |  |  |  |
Preferred Stock, Dividend Rate, Percentage | 7.00% |  |  |  |  |  |  |  |  |
Additional Paid-in Capital |  |  |  |  |  |  |  |  |  |
Share Capital [Line Items] |  |  |  |  |  |  |  |  |  |
Issuance of common and convertible preference shares |  |  |  | $ 35,997 |  |  |  |  |  |
Common Stock | Common Class A |  |  |  |  |  |  |  |  |  |
Share Capital [Line Items] |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Issued for Services | shares | 14,285,714 |  |  |  |  |  |  |  |  |
Proceeds from Issuance of Common Stock | $ 50,000 |  |  |  |  |  |  |  |  |
Shares outstanding (shares) | shares |  |  |  |  |  | 72,142,668 | 57,517,568 |  |  |
Common stock, voting rights, number of votes per share | vote |  |  |  | 1 |  |  |  |  |  |
Common Stock | Common Class B |  |  |  |  |  |  |  |  |  |
Share Capital [Line Items] |  |  |  |  |  |  |  |  |  |
Shares outstanding (shares) | shares |  |  |  |  |  | 3,749 | 3,755 |  | 3,755 |
Common stock, voting rights, number of votes per share | vote |  |  |  | 20 |  |  |  |  |  |
Contingent Consideration, Liability Settlements [Domain] | Preferred Stock | Series 4 Convertible Preferred Stock |  |  |  |  |  |  |  |  |  |
Share Capital [Line Items] |  |  |  |  |  |  |  |  |  |
Issuance of common and convertible preference shares |  |  |  | $ 62,623 |  |  |  |  |  |

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