Debt (Tables)

6 Months Ended

Jun. 30, 2019

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments

	As of June 30, 2019			As of December 31, 2018
Credit facility(1)	$	33,000		$	21,600
DFC (2)	(372		)	(65		)
Net credit facility	32,628			21,535
Finance lease obligations(1)	42			66
Total debt	32,670			21,601
Less: Current portion of long-term debt	42			48
Long-term debt, excluding current portion	$	32,628		$	21,553

(1) Principal portion of long-term debt. Refer to Future Commitments table below for principal payments to be made on long-term debt.

(2) DFC refers to deferred financing costs related to the Company's long-term debt.

Schedule of Maturities of Long-term Debt

The following is a summary of the combined principal maturities of all long-term debt and principal payments to be made under the Company’s finance lease agreements for each of the fiscal years presented in the table below (in thousands):

Year Ended December 31,
2019	$	25
2020	17
2021	—
2022	—
2023	—
2024	33,000
Total	$	33,042