Notes payable (Tables)

6 Months Ended

Jun. 30, 2018

Debt Disclosure [Abstract]

Future Maturities of the Notes Payable Obligation

The following table represents future maturities of the notes payable obligation as of June 30, 2018:

Years ending December 31, 2018	$	—
2019		—
2020		—
2021		30,347
2022		30,347
Total maturities	$	60,694
Unamortized discount and loan costs		(11,300	)
Total notes payable obligation	$	49,394