Note 14 - Subsequent Events (Details Textual) - USD ($)			1 Months Ended	2 Months Ended	3 Months Ended
	May 04, 2022	Dec. 29, 2021	May 20, 2022	May 23, 2022	Mar. 31, 2022
Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture, Total (in shares)					41,901
Term Loan and Security Agreement [Member] | Secured Term Loan Credit Facility [Member]
Proceeds from Issuance of Long-Term Debt, Total		$ 600,000
Subsequent Event [Member] | Term Loan and Security Agreement [Member] | Secured Term Loan Credit Facility [Member]
Proceeds from Issuance of Long-Term Debt, Total	$ 1,450,000		$ 1,450,000	$ 400,000
Restricted Stock Units (RSUs) [Member] | Subsequent Event [Member]
Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture, Total (in shares)				687,500