Note 10 - Stockholders' Equity (Details Textual)		3 Months Ended
	Jul. 15, 2021 shares	Mar. 31, 2022 shares	Mar. 31, 2021 shares
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)		35,000	35,000
Stock Issued During Period, Fractional Shares, Stock Splits (in shares)	0
Reverse Stock Split, Fractional Shares, Cash, Multiplier	0.70
Restricted Stock [Member]
Stock Repurchased During Period, Shares (in shares)		0	0