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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Amount of noncash expense for share-based payment arrangement.

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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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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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The highest percentage of annual salary that an employee is permitted to utilize with respect to the plan.

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Net number of non-option equity instruments granted to participants.

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Number of equity instruments other than options outstanding, including both vested and non-vested instruments.

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Number of shares authorized for issuance under share-based payment arrangement.

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Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Note 17 - Stock-based Compensation (Details Textual) - USD ($) $ / shares in Units, $ in Thousands										12 Months Ended
	Oct. 26, 2023	Sep. 07, 2023	Nov. 18, 2022	Nov. 01, 2022	Oct. 31, 2022	Oct. 01, 2021	Dec. 18, 2020	Sep. 07, 2018	Sep. 05, 2018	Dec. 31, 2023	Dec. 31, 2022	Sep. 21, 2022
Share-Based Payment Arrangement, Noncash Expense, Total										$ 1,639	$ 4,052
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)										0
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number (in shares)										1,027,658	1,146,947
Share-Based Payment Arrangement, Expense										$ 1,000	$ 1,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period (in shares)										66,768
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value, Ending Balance (in dollars per share)										$ 5.22	$ 5.19
The 2020 Equity Incentive Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares)												1,600,000
A2018 Restricted Stock Awards [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)									500,000
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount										$ 100
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number (in shares)										500,000
Restricted Stock Awards 2021 [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)										119,289
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount										$ 2,300
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number (in shares)										527,658
A2018 PWSC Restricted Stock Awards [Member] \| Restricted Stock [Member] \| Officer of PWSC [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)								1,000
PWSC Restricted Stock Award 2020 [Member]
Share-Based Payment Arrangement, Expense											$ 2,800
PWSC Restricted Stock Award 2020 [Member] \| Restricted Stock [Member] \| Officer of PWSC [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)							250
A2020 Modified PWSC Restricted Stock Awards [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Outstanding, Number, Ending Balance (in shares)										0
PWSC Restricted Stock Award [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number (in shares)										0
Ravix RUA 2021 [Member] \| Restricted Common Unit Awards [Member] \| Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)						199,000
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount										$ 200
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number (in shares)										70,528	91,361
Share-Based Payment Arrangement, Expense										$ 100	$ 100
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term (Year)				2 years 11 months 1 day	2 years 11 months 1 day	4 years
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate				72.00%	58.00%	75.00%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate				4.44%	4.44%	0.93%
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period (in shares)						83,333				20,833
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value, Ending Balance (in dollars per share)										$ 3.08
Ravix RUA 2021 [Member] \| Restricted Common Unit Awards [Member] \| Officer [Member] \| Maximum [Member]
Share-Based Payment Arrangement, Expense				$ 100
SNS RUA [Member] \| Restricted Common Unit Awards [Member] \| Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)			75,000
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount										$ 200
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number (in shares)										43,229	50,000
Share-Based Payment Arrangement, Expense										$ 100	$ 200
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term (Year)			4 years
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate			85.00%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate			4.09%
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period (in shares)			25,000							6,771
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value, Ending Balance (in dollars per share)										$ 5.84	$ 5.95
SPI RUA [Member] \| Restricted Common Unit Awards [Member] \| Officer [Member]
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount										$ 100
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number (in shares)										115,667
Share-Based Payment Arrangement, Expense										$ 100
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term (Year)		5 years
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate		59.00%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate		4.29%
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period (in shares)		83,333
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value, Ending Balance (in dollars per share)										$ 1.11
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Granted (in shares)		199,000
DDI RUA [Member] \| Restricted Common Unit Awards [Member] \| Officer [Member]
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount										$ 500
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number (in shares)										115,667
Share-Based Payment Arrangement, Expense										$ 400
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term (Year)	5 years
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate	57.00%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate	4.68%
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period (in shares)	83,333
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value, Ending Balance (in dollars per share)										$ 4.16
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Granted (in shares)	199,000
ESPP Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Maximum Employee Subscription Rate										5.00%
Employee Stock Purchase Plan, Employer Matching Contribution, Percent Of Employees Contribution										100.00%
Share-Based Payment Arrangement, Noncash Expense, Total										$ 200	$ 200