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v3.22.2

Note 3 - Long-term Debt (Details Textual) $ in Thousands |  | 6 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Feb. 08, 2021 USD ($) | Jun. 30, 2022 USD ($) | Jun. 30, 2021 USD ($) | Dec. 31, 2021 | Dec. 31, 2020 USD ($)
Interest Rate Swap [Member] |  |  |  |  |
Derivative Liability, Notional Amount |  | $ 5,300 |  |  |
Interest Rate Swap [Member] | Interest Expense [Member] |  |  |  |  |
Gain (Loss) on Derivative Instruments, Net, Pretax, Total |  | $ 100 | $ 0 |  |
Credit Agreement [Member] |  |  |  |  |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage | 0.15% |  |  |  |
Fixed Charge Coverage Ratio |  | 1.25 |  |  |
Debt Instrument, Covenant, Maximum Total Debt to EBITDAX Ratio |  | 5.0 |  |  |
Credit Agreement [Member] | Term Loan 2 [Member] |  |  |  |  |
Debt Instrument, Interest Rate, Effective Percentage |  | 2.30% |  |  |
Long-Term Debt, Maturity, Remainder of Fiscal Year |  | $ 4,600 |  |  |
Long-Term Debt, Maturity, Year One |  | 9,300 |  |  |
Long-Term Debt, Maturity, Year Four |  | 3,100 |  |  |
Credit Agreement [Member] | Term Loan [Member] |  |  |  |  |
Long-Term Debt, Maturity, Remainder of Fiscal Year |  | 3,000 |  |  |
Long-Term Debt, Maturity, Year One |  | 6,000 |  |  |
Long-Term Debt, Maturity, Year Two |  | $ 3,000 |  |  |
Credit Agreement [Member] | London Interbank Offered Rate (LIBOR) [Member] | Term Loan 2 [Member] | Minimum [Member] |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  | 0.85% |
Credit Agreement [Member] | London Interbank Offered Rate (LIBOR) [Member] | Term Loan 2 [Member] | Maximum [Member] |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  | 1.65% |
Credit Agreement [Member] | London Interbank Offered Rate (LIBOR) [Member] | Term Loan [Member] | Minimum [Member] |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  | 0.68% |
Credit Agreement [Member] | London Interbank Offered Rate (LIBOR) [Member] | Term Loan [Member] | Maximum [Member] |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  | 1.50% |
Credit Agreement [Member] | Revolving Credit Facility [Member] |  |  |  |  |
Debt Instrument, Interest Rate, Effective Percentage |  | 2.13% |  |  |
Credit Agreement [Member] | Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] |  |  |  |  |
Debt Instrument, LIBOR Floor | 0.25% |  |  |  |
Credit Agreement [Member] | Revolving Credit Facility [Member] | Truist Bank [Member] |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 125,000 |  |  |  | $ 75,000
Credit Agreement [Member] | Revolving Credit Facility [Member] | Truist Bank [Member] | London Interbank Offered Rate (LIBOR) [Member] |  |  |  |  |
Debt Instrument, LIBOR Floor | 0.25% |  |  |  | 0.00%
Credit Agreement [Member] | Letter of Credit [Member] |  |  |  |  |
Letters of Credit Outstanding, Amount |  | $ 0 |  |  |

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