Nature of business (Details) $ / shares in Units, $ in Thousands |
1 Months Ended | |||||
|---|---|---|---|---|---|---|
|
Feb. 08, 2016
$ / shares
shares
|
Feb. 03, 2016
USD ($)
|
Jan. 15, 2016 |
Feb. 29, 2016
shares
|
Mar. 31, 2016
USD ($)
shares
|
Dec. 31, 2015
USD ($)
shares
|
|
| Liquidity | ||||||
| Common stock, shares issued | 36,608,136 | 4,869,829 | ||||
| Accumulated deficit | $ | $ (106,089) | $ (88,348) | ||||
| Initial Public Offering | ||||||
| Liquidity | ||||||
| Shares sold | 6,785,000 | 6,785,000 | ||||
| Price to the public | $ / shares | $ 16.00 | |||||
| Aggregate net proceeds | $ | $ 97,700 | |||||
| Reverse stock split | 0.3846 | |||||
| Shares issues upon conversion of preferred stock | 24,929,709 | 24,929,709 | ||||
| Common stock, shares issued | 35,169,842 | |||||
| Overallotment Option | ||||||
| Liquidity | ||||||
| Shares sold | 885,000 |