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Equity - Common Stock and Preferred Stock (Details) - USD ($) | 1 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 | Jul. 31, 2018 | Feb. 28, 2018 | Dec. 31, 2019 | Dec. 31, 2018
Stockholders' equity |  |  |  |  |
Common stock, authorized shares | 62,500,000 |  |  | 62,500,000 |
Preferred stock, authorized shares | 2,000,000 |  |  | 2,000,000 |
Shares issued for services ($1.44 per share) |  |  |  | $ 11,000 |
Net proceeds from issuance of stock (in dollars) |  |  |  | 0 | $ 23,511,000
Issuance costs of offering |  |  |  | 3,000 |
Noncontrolling interest granted as compensation, ownership percentage | 1.00% |  |  |  |
Noncontrolling interest granted as compensation | $ 6,000 |  |  | 6,000 | 0
Additional Purchase Right |  |  |  |  |
Stockholders' equity |  |  |  |  |
Common stock, authorized shares |  | 478,854 |  |  |
Share price of shares issued (in dollars per share) |  | $ 4 |  |  |
Participation Right |  |  |  |  |
Stockholders' equity |  |  |  |  |
Maximum beneficial ownership (as a percent) |  | 20.00% |  |  |
Maximum voting power (as a percent) |  | 20.00% |  |  |
Common Stock |  |  |  |  |
Stockholders' equity |  |  |  |  |
Shares issued for services ($1.44 per share) |  |  |  | $ 0 |
Shares issued for services ($1.44 per share) (in shares) |  |  |  | 7,500 |
Issuance costs of offering |  |  |  | $ 0 |
Noncontrolling interest granted as compensation |  |  |  | $ 0 | $ 0
Common Stock | Offering |  |  |  |  |
Stockholders' equity |  |  |  |  |
Shares issued for services ($1.44 per share) (in shares) |  |  | 5,750,000 |  |
Share price of shares issued (in dollars per share) |  |  | $ 2.25 |  |
Net proceeds from issuance of stock (in dollars) |  |  | $ 11,900,000 |  |
Common Stock | Stock Purchase Agreement, ClirSPV, LLC |  |  |  |  |
Stockholders' equity |  |  |  |  |
Shares issued for services ($1.44 per share) |  | $ 11,700,000 |  |  |
Shares issued for services ($1.44 per share) (in shares) |  | 5,213,543 |  |  |
Share price of shares issued (in dollars per share) |  | $ 2.25 |  |  |
Net proceeds from issuance of stock (in dollars) |  | $ 11,600,000 |  |  |

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