Notes payable (Details) - USD ($) $ in Thousands |
Mar. 31, 2019 |
Dec. 31, 2018 |
|---|---|---|
| Notes Payable | ||
| April 1, 2019 - December 31, 2019 | $ 1,775 | |
| January 1, 2020 - December 31, 2020 | 1,541 | |
| January 1, 2021 - December 31, 2021 | 95 | |
| Total future minimum payments | 3,411 | |
| Less: Imputed interest | (59) | |
| Total | 3,352 | |
| Current portion of notes payable | 2,204 | $ 2,411 |
| Long-term portion of notes payable | $ 1,148 | $ 1,618 |
| X | ||||||||||
- Definition Carrying value as of the balance sheet date of notes payable (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Sum of the carrying values as of the balance sheet date of the portions of long-term notes payable due within one year or the operating cycle if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of undiscounted obligation for payments for financed prepaid maintenance services. No definition available.
|
| X | ||||||||||
- Definition Amount of undiscounted obligation for payments for financed prepaid maintenance services, due in third fiscal year following latest fiscal year. No definition available.
|
| X | ||||||||||
- Definition Amount of undiscounted obligation for payments for financed prepaid maintenance services, due in second fiscal year following latest fiscal year. No definition available.
|
| X | ||||||||||
- Definition Amount of undiscounted obligation for payments for financed prepaid maintenance services, due in remainder of fiscal year following latest fiscal year ended. No definition available.
|
| X | ||||||||||
- Definition Amount of undiscounted obligation in excess of discounted obligation for financed prepaid maintenance services. No definition available.
|