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CREDIT FACILITY AND ACQUISITION DEBT (Tables)
 6 Months Ended
Jun. 30, 2021
Debt Disclosure [Abstract]  
Schedule of Long-term Debt
Our Credit Facility and Acquisition debt consisted of the following (in thousands):
December 31, 2020June 30, 2021
Credit Facility$47,200 $60,500 
Debt issuance costs, net of accumulated amortization of $819 and $1,161, respectively
(1,136)(1,563)
Total Credit Facility$46,064 $58,937 
Acquisition debt$5,509 $5,215 
Less: current portion(1,027)(814)
Total acquisition debt, net of current portion$4,482 $4,401 
The imputed interest expense related to our acquisition debt is as follows (in thousands):
Three months ended June 30,Six months ended June 30,
2020202120202021
Acquisition debt imputed interest expense$124 $93 $251 $190 
Schedule of Line of Credit Facilities he interest expense and amortization of debt issuance costs related to our Credit Facility are as follows (in thousands):
Three months ended June 30,Six months ended June 30,
2020202120202021
Credit Facility interest expense$1,106 $372 $2,336 $817 
Credit Facility amortization of debt issuance costs118 99 245 217