Note 11 - Stockholder's Equity - Schedule of Preferred Stock 1 (Details)	Dec. 31, 2021 shares
Preferred stock, authorized (in shares)	8,740,398
Preferred stock, issued (in shares)	4,611,985
Series A Preferred Stock [Member]
Preferred stock, authorized (in shares)	4,723,330
Preferred stock, issued (in shares)	2,547,330
Series B Preferred Stock [Member]
Preferred stock, authorized (in shares)	3,117,915
Preferred stock, issued (in shares)	1,392,131
Series B-1 Preferred Stock [Member]
Preferred stock, authorized (in shares)	899,153
Preferred stock, issued (in shares)	672,524

Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481112/505-10-50-13

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(28))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant