Common stock (Details)
$ / shares in Units, $ in Thousands |
1 Months Ended |
3 Months Ended |
|
|
Jul. 31, 2017
$ / shares
shares
|
Jun. 30, 2018
USD ($)
director
Vote
$ / shares
shares
|
Mar. 31, 2018
$ / shares
shares
|
| Common stock |
|
|
|
| Shares authorized (in shares) |
|
27,314,288
|
27,314,288
|
| Par value (in dollars per share) | $ / shares |
|
$ 0.001
|
$ 0.001
|
| Common stock |
|
|
|
| Common stock |
|
|
|
| Shares authorized (in shares) |
|
27,314,288
|
27,314,288
|
| Par value (in dollars per share) | $ / shares |
|
$ 0.001
|
$ 0.001
|
| Common stock reserved for the conversion of outstanding shares of preferred stock |
|
22,306,801
|
22,306,801
|
| Number of vote per share | Vote |
|
1
|
|
| Number of directors to be elected | director |
|
2
|
|
| Cash dividends declared (in dollars per share) | $ / shares |
|
$ 0
|
|
| Cash dividends paid | $ |
|
$ 0
|
|
| Common A stock |
|
|
|
| Common stock |
|
|
|
| Shares authorized (in shares) |
|
26,258
|
26,258
|
| Par value (in dollars per share) | $ / shares |
$ 0.001
|
|
|
| Shares issued and sold (in shares) |
26,258
|
|
|
| Maximum | Common A stock |
|
|
|
| Common stock |
|
|
|
| Dividends to be received upon declaration (as a percent) |
|
100.00%
|
|
| Dividends to be received upon deemed liquidation (as a percent) |
|
300.00%
|
|