Note 12 - Earnings (Loss) Per Share (Details Textual) - shares shares in Thousands	12 Months Ended	24 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures, Total	0	0
Nonvested Shares [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	100	800
Warrant [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	22,300	22,300
Share-based Payment Arrangement [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	4,500	3,300
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period	2,400
Share-based Payment Arrangement [Member] \| Forecast [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period			2,100
Nonvested Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance	2,200	4,200

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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-Publisher FASB
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-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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Net number of share options (or share units) granted during the period.

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