The following table summarizes information relating to the Company’s definite-lived intangible assets:

The intangible assets noted above are amortized on a straight-line basis over their useful lives with the exception of customer relationships which are being amortized using an accelerated method.

The following table summarizes the expected amortization over the next five years for our definite-lived intangible assets:

Amortization expenses relating to the definite-lived intangible assets as discussed above were $50,000 and $54,000 for the three months ended March 31, 2021 and 2020, respectively.