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Supplemental Disclosures of Cash Flow Information (Tables)

12 Months Ended

Dec. 31, 2020

Supplemental Cash Flow Elements [Abstract]

Schedule of supplemental cash flow disclosures

Supplemental disclosures regarding cash flow information and non-cash investing and financing activities are as follows:

			Year Ended December 31,
			2020						2019						2018
Cash paid for interest			$	1,766					$	2,833					$	1,660
Cash paid for taxes			$	635					$	207					$	666
Non-cash investing activities:
Contingent consideration			$	—					$	—					$	9,200
Asset retirement obligation			$	34					$	(5,114)					$	7,546
Non-cash financing activities:
Equipment purchased with debt			$	—					$	—					$	4,733
Write-off of remaining balance of returned equipment under capital lease			$	—					$	—					$	398
Capitalized expenditures in accounts payable and accrued expenses			$	376					$	899					$	3,014

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