Note 14 - Subsequent Events	3 Months Ended
Mar. 31, 2022
Notes to Financial Statements
Subsequent Events [Text Block]	Note 14 — Subsequent Events On April 6, 2022, the Company entered into a common stock purchase agreement (the “Stock Purchase Agreement”) with HGC NEXT INV LLC (the “Purchaser”), pursuant to which the Company sold 4,618,226 shares of the Company’s common stock to Purchaser, at a purchase price of $6.496 per share for an aggregate purchase price of approximately $30.0 million. The consummation of the transactions contemplated by the Stock Purchase Agreement occurred on April 7, 2022. The Company has evaluated subsequent events through May 12, 2022, the date the financial statements were issued. Any material subsequent events that occurred during this time have been properly recognized and/or disclosed in these financial statements.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI https://asc.fasb.org/topic&trid=2122774

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662

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