Note 19 - Subsequent Events (Details Textual) - USD ($)			3 Months Ended	12 Months Ended
	Apr. 12, 2022	Dec. 29, 2021	Apr. 12, 2022	Dec. 31, 2021	Dec. 31, 2020
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture, Total (in shares)				902,630	1,883,248
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] | Forecast [Member] | Term Loan and Security Agreement [Member] | Secured Term Loan Credit Facility [Member]
Proceeds from Issuance of Long-term Debt, Total	$ 1,050,000		$ 1,050,000
Restricted Stock Units (RSUs) [Member] | Subsequent Event [Member] | Forecast [Member]
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture, Total (in shares)			729,401