Note 7 - Earnings Per Share (Details Textual) - shares	3 Months Ended	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2022	Jun. 30, 2021
Weighted Average Equity Awards [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	583,000	466,000	160,000
Warrant [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	2,850,000	2,850,000
Incremental Equity Awards [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	23,000	36,000