Requirement for fixed charge coverage ratio under the debt agreement.

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The amount of minimum EBITDA required under the covenant of the debt instrument.

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The amount of optional increase in maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Extended period between issuance and maturity of long-term debt, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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The amount of the reserve to the revolving loan availability at the end of the reporting period.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Decrease for amounts of indebtedness forgiven by the holder of the debt instrument.

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Amount of the required periodic payments including both interest and principal payments.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Fixed interest rate related to the interest rate derivative.

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Nominal or face amount used to calculate payments on the derivative liability.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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Note 7 - Debt and Credit Agreements (Details Textual) $ in Thousands					6 Months Ended	9 Months Ended	12 Months Ended								17 Months Ended
	Aug. 04, 2022 USD ($)	Oct. 29, 2020	Feb. 25, 2019 USD ($)	Oct. 26, 2016	Jun. 30, 2022 USD ($)	Sep. 30, 2022 USD ($)	Dec. 31, 2024	Jun. 30, 2023 USD ($)	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2023	Feb. 28, 2022 USD ($)	Nov. 08, 2021 USD ($)	Jun. 30, 2019 USD ($)	Dec. 31, 2016 USD ($)
Long-Term Debt, Current Maturities, Total					$ 17,178						$ 6,650
Development Corporation of Abilene Loan [Member]
Long-term Debt, Total											114								$ 570
Debt Instrument, Decrease, Forgiveness											114	$ 114	$ 114	$ 114
Notes Payable, Total					714						363
Notes Payable, Other Payables [Member]
Long-term Debt, Total					638						274
Long-Term Debt, Current Maturities, Total					$ 27						$ 186
Debt Instrument, Interest Rate, Stated Percentage					4.00%
Interest Rate Swap [Member]
Derivative Liability, Notional Amount																		$ 6,000
Derivative, Fixed Interest Rate																		2.13%
Minimum [Member] \| Notes Payable, Other Payables [Member]
Debt Instrument, Periodic Payment, Total					$ 3
Maximum [Member] \| Notes Payable, Other Payables [Member]
Debt Instrument, Periodic Payment, Total					16
The 2022 Credit Facility [Member]
Debt Instrument, Term (Year)	84 months
Debt Instrument, Covenant, Minimum EBITDA					0
The 2022 Credit Facility [Member] \| Forecast [Member]
Debt Instrument, Covenant, Fixed Charge Coverage Ratio							1.1								1.0
Debt Instrument, Covenant, Minimum EBITDA						$ 1,500		$ 5,100	$ 3,600	$ 2,500
The 2022 Credit Facility [Member] \| Senior Secured Term Loan [Member]
Debt Instrument, Face Amount	$ 7,578
The 2022 Credit Facility [Member] \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] \| Senior Secured Term Loan [Member]
Debt Instrument, Basis Spread on Variable Rate	2.50%
Revolving Credit Facility [Member] \| The 2016 Credit Facility [Member]
Debt Instrument, Term (Year)				3 years
Long Term Debt Extended Term (Year)			3 years
Line of Credit Facility, Maximum Borrowing Capacity			$ 35,000													$ 30,000
Reserve to Revolving Loan Availability																$ 2,500	$ 5,000
Long-Term Line of Credit, Total					17,037
Line of Credit Facility, Remaining Borrowing Capacity					$ 10,178
Revolving Credit Facility [Member] \| The 2022 Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity	$ 35,000
Line of Credit Facility, Optional Increase in Maximum Borrowing Capacity	$ 10,000
Revolving Credit Facility [Member] \| The 2022 Credit Facility [Member] \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] \| Minimum [Member]
Debt Instrument, Basis Spread on Variable Rate	2.00%
Revolving Credit Facility [Member] \| The 2022 Credit Facility [Member] \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] \| Maximum [Member]
Debt Instrument, Basis Spread on Variable Rate	2.50%
Letter of Credit [Member] \| The 2016 Credit Facility [Member] \| London Interbank Offered Rate (LIBOR) [Member] \| Minimum [Member]
Debt Instrument, Basis Spread on Variable Rate		2.25%
Letter of Credit [Member] \| The 2016 Credit Facility [Member] \| London Interbank Offered Rate (LIBOR) [Member] \| Maximum [Member]
Debt Instrument, Basis Spread on Variable Rate		2.75%
Letter of Credit [Member] \| The 2016 Credit Facility [Member] \| Base Rate [Member] \| Minimum [Member]
Debt Instrument, Basis Spread on Variable Rate		0.00%
Letter of Credit [Member] \| The 2016 Credit Facility [Member] \| Base Rate [Member] \| Maximum [Member]
Debt Instrument, Basis Spread on Variable Rate		0.75%