June 30, 

December 31, 

2019

2018

Term loan agreements

$

10,000

$

3,828

Revolving credit facility

2,150

—

Equipment financing agreements

569

752

Promissory notes

 —

6,250

Total long-term debt

12,719

10,830

Less: current portion of long-term debt

(1,065)

(3,201)

Less: debt issuance costs

(416)

(32)

Less: discounts on warrants, net

 —

(479)

Total long-term debt, net of current portion

$

11,238

$

7,118