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Note 2 - Prepaid Expenses and Other Current Assets - Summary of Prepaid Expenses and Other Current Assets (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Prepaid subscriptions $ 477 $ 29
Prepaid insurance 117 314
Prepaid marketing and sponsorships 60 60
Other 164 267
Total prepaid expenses and other current assets $ 818 $ 670