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Supplemental Cash Flow Information
6 Months Ended
Jun. 30, 2021
Supplemental Cash Flow Elements [Abstract]  
Supplemental Cash Flow Information Supplemental Cash Flow Information
Supplemental cash flow information is as follows (in thousands):
        
 Six months ended June 30,
 20212020
Supplemental cash payment information:
Interest paid$11 $20 
Income taxes (received, net of payments) paid(351)149 
Supplemental non-cash activities:
Employee retention credit$1,164 $— 
JP3 PPP loan forgiveness881 — 
Supplemental non-cash investing and financing activities:
Equity issued - acquisition of JP3$— $8,538