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Note 5 - Concentration of Credit Risk | 12 Months Ended
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Dec. 31, 2023
Notes to Financial Statements |
Concentration Risk Disclosure [Text Block] | 5. Concentration of Credit Risk: Financial instruments that potentially expose us to credit risk consist primarily of cash and cash equivalents as well as accounts receivable, net, which are generally not collateralized. We maintain our cash and cash equivalents in higher credit quality financial institutions in order to limit the amount of credit exposure. As of December 31, 2023 and December 31, 2022, a vast majority of our domestic cash and cash equivalents is with TD Bank, N.A., and JPMorgan Chase N.A. The total domestic cash balances are insured by the Federal Deposit Insurance Corporation (“FDIC”) to a maximum amount of $250.0 thousand per bank as of December 31, 2023 and 2022. As of December 31, 2023 and 2022, we had cash balances on deposit with seven and five banks that exceeded the balance insured by the FDIC limit by approximat el y$171.8 million and $36.0 million, respectively. As of December 31, 2023 and 2022, we also had cash on deposit with foreign banks of approximately $129.2 million and $74.9 million, respectively. We consider the concentration of credit risk associated with our accounts receivable to be commercially reasonable and believe that such concentration does not result in the significant risk of near-term severe adverse impacts. Our top fifty customers represent approximately 45% of revenues for 2023, 41% for 2022 and 38% for 2021, respectively, with no individual customer accounting for more than approximately 3% of revenues for the years ended December 31, 2023, 2022, and 2021 respectively. No individual customer comprised more than approximately 5% and 6% of accounts receivable as of December 31, 2023 and 2022, respectively.

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- Definition The entire disclosure for any concentrations existing at the date of the financial statements that make an entity vulnerable to a reasonably possible, near-term, severe impact. This disclosure informs financial statement users about the general nature of the risk associated with the concentration, and may indicate the percentage of concentration risk as of the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 275 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//275/tableOfContent + Details
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