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Supplemental Consolidated Financial Statement Information (Tables)

12 Months Ended

Dec. 31, 2021

Supplemental Consolidated Financial Statement Information

Schedule of allowance for doubtful accounts

The activity in the allowance for doubtful accounts (in thousands) for the years ended December 31, 2021 and 2020 was as follows:

​

​	​	​	​	​	​	​
​	​	Year Ended December 31,
​		​	2021	​	2020
Beginning balance	​	$	(250)	​	$	(250)
Additional provisions to allowance	​	​	—	​	​	(1,625)
Write-offs against allowance - A/R	​	​	—	​	​	191
Write-offs against allowance - N/R	​	​	—		​	1,434
Recoveries collected	​	​	—		​	—
Ending balance	​	$	(250)	​	$	(250)

Schedule of other current liabilities

​

​	​	​	​	​	​	​
​	​	Year Ended December 31,
​		​	2021	​	2020
Beginning balance	​	$	(250)	​	$	(250)
Additional provisions to allowance	​	​	—	​	​	(1,625)
Write-offs against allowance - A/R	​	​	—	​	​	191
Write-offs against allowance - N/R	​	​	—		​	1,434
Recoveries collected	​	​	—		​	—
Ending balance	​	$	(250)	​	$	(250)

Schedule of operating revenues disaggregated by geographic region

The following table presents the Company’s operating revenues (unaudited and in thousands) disaggregated by geographic region:

​

​	​	​	​	​	​	​
​	​	Year Ended December 31,
​		​	2021	​	​	2020
Operating Revenues	​	​	​	​	​	​
United States	​	$	17,772	​	$	73,983
Canada	​	​	6,923	​	​	12,117
Total	​	$	24,695	​	$	86,100

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