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LONG-TERM DEBT AND CURRENT PORTION OF LONG-TERM DEBT (Details) $ in Thousands |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Feb. 12, 2019 USD ($) | Dec. 01, 2017 USD ($) | Feb. 28, 2023 USD ($) | Mar. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2023 USD ($) Lender Vessel | Dec. 31, 2022 USD ($) Vessel Building | Dec. 31, 2020 USD ($) Building | Dec. 31, 2018 Vessel | Apr. 29, 2024 USD ($) | Dec. 31, 2021 USD ($) | Dec. 16, 2020 USD ($)
Line of Credit Facility [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Number of lenders | Lender |  |  |  |  |  | 2 |  |  |  |  |  |
Current portion of long-term debt |  |  |  |  | $ 31,898 | $ 31,898 | $ 39,700 |  |  |  |  |
Number of new buildings | Building |  |  |  |  |  |  | 2 |  |  |  |  |
Contractual Obligation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
2024 |  |  |  |  | 32,748 | 32,748 |  |  |  |  |  |
2025 |  |  |  |  | 93,611 | 93,611 |  |  |  |  |  |
2026 |  |  |  |  | 21,474 | 21,474 |  |  |  |  |  |
2027 |  |  |  |  | 21,934 | 21,934 |  |  |  |  |  |
2028 |  |  |  |  | 56,690 | 56,690 |  |  |  |  |  |
More than 5 years |  |  |  |  | 75,313 | 75,313 |  |  |  |  |  |
Total |  |  |  |  | 304,770 | 304,770 |  |  |  |  |  |
Cash balance |  |  |  |  | 31,078 | $ 31,078 | $ 59,583 |  |  |  | $ 34,739 |
2019 Senior Secured Credit Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Number of vessels used as collateral | Vessel |  |  |  |  |  | 20 |  |  |  |  |  |
Debt instrument term |  |  |  |  |  | 5 years |  |  |  |  |  |
Maximum borrowing capacity | $ 306,100 |  |  |  | 30,000 | $ 30,000 |  |  |  |  |  |
Loan amortizing, maturity period |  |  |  |  |  | 20 years |  |  |  |  |  |
Maturity date |  |  |  |  |  | Feb. 28, 2025 |  |  |  |  |  |
Discretionary excess cash mechanism for the lender that equals to net earnings from collateral vessels | 50.00% |  |  |  |  |  |  |  |  |  |  |
Deferred financing costs |  |  |  |  | 400 | $ 400 | 1,500 |  |  |  |  |
Debt covenants, minimum liquidity | $ 20,000 |  |  |  |  | 20,000 | 30,000 |  |  |  |  |
Debt covenants percentage in loan-to-vessel ratio | 70.00% |  |  |  |  |  |  |  |  |  |  |
Drawn amount |  |  |  |  | 84,600 | 84,600 | 129,200 |  |  |  |  |
Current portion of long-term debt |  |  |  |  | $ 11,700 | 11,700 | 25,800 |  |  |  |  |
Repayment of debt |  |  |  |  |  | $ 44,600 |  |  |  |  |  |
Additional payment related to excess cash flow mechanism |  |  | $ 15,200 |  |  |  |  |  |  |  |  |
Contractual Obligation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Number of vessels used as loan collateral | Vessel |  |  |  |  |  | 14 |  |  |  |  |  |
2019 Senior Secured Credit Facility [Member] | Forecast [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Drawn amount |  |  |  |  |  |  |  |  |  | $ 81,600 |  |
2019 Senior Secured Credit Facility [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Repayment of debt |  |  |  | $ 3,000 |  |  |  |  |  |  |  |
2019 Senior Secured Credit Facility [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Contractual Obligation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Percentage of loan-to-value ratio |  |  |  |  | 15.00% | 15.00% |  |  |  |  |  |
$30 Million Accordion Loan [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  |  |  |  |  |  |  | $ 30,000
Maturity date |  |  |  |  |  | Feb. 28, 2025 |  |  |  |  |  |
Financing of 2018-built Vessels [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Number of vessels delivered | Vessel |  |  |  |  |  |  |  |  | 3 |  |  |
Deferred financing costs |  | $ 2,300 |  |  |  |  |  |  |  |  |  |
Drawn amount |  |  |  |  | $ 87,200 | $ 87,200 | 96,000 |  |  |  |  |
Percentage of purchase price expected to pay by lending provider |  | 77.50% |  |  |  |  |  |  |  |  |  |
Term of bareboat charter agreement |  |  |  |  |  | 10 years |  |  |  |  |  |
Obligation to purchase the vessels |  | $ 13,600 |  |  |  |  |  |  |  |  |  |
First flexibility period to purchase the vessels |  |  |  |  |  | 60 months |  |  |  |  |  |
Second flexibility period to purchase the vessels |  |  |  |  |  | 84 months |  |  |  |  |  |
Minimum value adjusted equity |  | $ 175,000 |  |  |  |  |  |  |  |  |  |
Minimum value adjusted equity ratio |  | 25.00% |  |  |  |  |  |  |  |  |  |
Minimum liquidity value |  | $ 20,000 |  |  |  |  |  |  |  |  |  |
Long term debt current |  |  |  |  | 8,900 | $ 8,900 | $ 8,500 |  |  |  |  |
Contractual Obligation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
2024 |  |  |  |  | 9,138 | 9,138 |  |  |  |  |  |
2025 |  |  |  |  | 9,534 | 9,534 |  |  |  |  |  |
2026 |  |  |  |  | 9,974 | 9,974 |  |  |  |  |  |
2027 |  |  |  |  | 10,434 | 10,434 |  |  |  |  |  |
2028 |  |  |  |  | 48,159 | 48,159 |  |  |  |  |  |
More than 5 years |  |  |  |  | 0 | 0 |  |  |  |  |  |
Total |  |  |  |  | $ 87,239 | $ 87,239 |  |  |  |  |  |
Financing of 2018-built Vessels [Member] | SOFR [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on margin |  |  |  |  |  | 4.52% |  |  |  |  |  |
Basis spread on variable rate |  |  |  |  | 0.26% | 0.25% |  |  |  |  |  |
2019 Senior Secured Credit Facility including $30 mill Accordion Loan [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Number of vessels used as collateral | Vessel |  |  |  |  |  | 14 |  |  |  |  |  |
Contractual Obligation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
2024 |  |  |  |  | $ 12,079 | $ 12,079 |  |  |  |  |  |
2025 |  |  |  |  | 72,561 | 72,561 |  |  |  |  |  |
2026 |  |  |  |  | 0 | 0 |  |  |  |  |  |
2027 |  |  |  |  | 0 | 0 |  |  |  |  |  |
2028 |  |  |  |  | 0 | 0 |  |  |  |  |  |
More than 5 years |  |  |  |  | 0 | 0 |  |  |  |  |  |
Total |  |  |  |  | 84,640 | 84,640 |  |  |  |  |  |
Financing of 2022-built Vessels [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Number of vessels delivered | Vessel |  |  |  |  |  |  | 2 |  |  |  |  |
Deferred financing costs |  |  |  |  | 5,400 | 5,400 | $ 5,400 |  |  |  |  |
Drawn amount |  |  |  |  | 79,400 | $ 79,400 | $ 84,900 |  |  |  |  |
Percentage of purchase price expected to pay by lending provider |  |  |  |  |  |  | 80.00% |  |  |  |  |
Term of bareboat charter agreement |  |  |  |  |  | 10 years |  |  |  |  |  |
Obligation to purchase the vessels |  |  |  |  |  |  |  | $ 16,500 |  |  |  |
First flexibility period to purchase the vessels |  |  |  |  |  | 60 months |  |  |  |  |  |
Second flexibility period to purchase the vessels |  |  |  |  |  | 84 months |  |  |  |  |  |
Minimum liquidity value |  |  |  |  | 20,000 | $ 20,000 |  |  |  |  |  |
Number of new buildings | Building |  |  |  |  |  |  |  | 2 |  |  |  |
Contractual Obligation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
2024 |  |  |  |  | 5,515 | 5,515 |  |  |  |  |  |
2025 |  |  |  |  | 5,500 | 5,500 |  |  |  |  |  |
2026 |  |  |  |  | 5,500 | 5,500 |  |  |  |  |  |
2027 |  |  |  |  | 5,500 | 5,500 |  |  |  |  |  |
2028 |  |  |  |  | 5,515 | 5,515 |  |  |  |  |  |
More than 5 years |  |  |  |  | 51,521 | 51,521 |  |  |  |  |  |
Total |  |  |  |  | $ 79,351 | $ 79,351 |  |  |  |  |  |
Financing of 2022-built Vessels [Member] | SOFR [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on margin |  |  |  |  |  | 4.50% |  |  |  |  |  |
Basis spread on variable rate |  |  |  |  | 0.26% | 0.26% |  |  |  |  |  |
Financing of Nordic Hawk [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Drawn amount |  |  |  |  | $ 53,500 | $ 53,500 | $ 0 |  |  |  |  |
Percentage of purchase price expected to pay by lending provider |  |  |  |  |  | 75.00% |  |  |  |  |  |
Term of bareboat charter agreement |  |  |  |  |  | 8 years |  |  |  |  |  |
Obligation to purchase the vessels |  |  |  |  |  | $ 5,900 |  |  |  |  |  |
First flexibility period to purchase the vessels |  |  |  |  |  | 60 months |  |  |  |  |  |
Second flexibility period to purchase the vessels |  |  |  |  |  | 84 months |  |  |  |  |  |
Minimum liquidity value |  |  |  |  | 20,000 | $ 20,000 |  |  |  |  |  |
Long term debt current |  |  |  |  | 5,900 | 5,900 | $ 0 |  |  |  |  |
Contractual Obligation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
2024 |  |  |  |  | 6,016 | 6,016 |  |  |  |  |  |
2025 |  |  |  |  | 6,016 | 6,016 |  |  |  |  |  |
2026 |  |  |  |  | 6,000 | 6,000 |  |  |  |  |  |
2027 |  |  |  |  | 6,000 | 6,000 |  |  |  |  |  |
2028 |  |  |  |  | 6,016 | 6,016 |  |  |  |  |  |
More than 5 years |  |  |  |  | 23,492 | 23,492 |  |  |  |  |  |
Total |  |  |  |  | $ 53,540 | $ 53,540 |  |  |  |  |  |
Financing of Nordic Hawk [Member] | SOFR [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on margin |  |  |  |  |  | 4.76% |  |  |  |  |  |

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- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)(a)(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 + Details
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- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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- Definition The carrying value as of the balance sheet date of the current portion 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(19)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(13)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 + Details
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