Note 4. Accounts Payable and Accrued Liabilities and Compensation

As of February 28, 2023 and May 31, 2022, the accounts payable balance was approximately $62.7 million and $68.0 million, respectively, with two vendors accounting for 74% and 73% of the total balance of accounts payable at the respective dates.

The components of accrued liabilities and compensation are as follows (in thousands):

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