INVESTMENT IN FINANCE LEASE (Details) $ in Thousands	Dec. 31, 2019 USD ($) vessel	Dec. 31, 2018 USD ($) vessel
Vessels Accounted for as Sales Type Leases [Abstract]
Number of vessels leased to third parties on time charter classified as investment in finance lease (in vessels) \| vessel	1	1
Components of the investment in sales-type leases [Abstract]
Net minimum lease payments receivable		$ 11,651
Sales-type Lease, Residual Value of Leased Asset	$ 10,822
Estimated residual values of leased property (unguaranteed)		10,821
Less: finance lease interest income		(690)
Total investment in sales-type lease	10,979
Total investment in sales-type lease		21,782
Current portion	157
Current portion		10,803
Long-term portion	10,822
Long-term portion		$ 10,979
Future minimum gross revenues [Abstract]
2020	157
2021	0
2022	0
2023	0
2024	0
Thereafter	0
Total minimum future gross revenues	$ 157

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Number of Vessels Leased to Third Parties on Time Charter Classified as Investment in Finance Lease

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Sale Leaseback Transaction, Net Book Value, Current

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Sale Leaseback Transaction, Net Book Value, Noncurrent

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The net amount due within one year of the balance sheet date or the normal operating cycle, if longer, consisting of: (a) minimum lease payments on sales type leases and (b) unguaranteed residual value; less: (i) executory costs, (ii) unearned income, and (iii) the accumulated allowance for uncollectible minimum lease payments.

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The net amount due after one year of the balance sheet date or beyond the normal operating cycle, if longer, consisting of: (a) minimum lease payments on sales type leases, and (b) unguaranteed residual value; less: (i) executory costs, (ii) unearned income, and (iii) the accumulated allowance for uncollectible minimum lease payments.

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The net investment in sales type leases as of the balance sheet date consisting of: (a) minimum lease payments on sales type leases and (b) unguaranteed residual value; less: (i) executory costs, (ii) unearned income, and (iii) the accumulated allowance for uncollectible minimum lease payments.

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The remaining (unamortized) difference between the gross investment in a sales-type lease and the cost or carrying amount of the leased property as of the balance sheet date.

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Amount of remaining payments as of the balance sheet date that lessees are obligated to make or can be required to make under sales-type leases, including any guarantee of residual value and executory costs. The amount also includes any guaranteed rental payments by an unrelated third-party provided that are financially capable of making such payments.

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The estimate of the lease property's economic value at the end of the sales-type lease term excluding any amounts guaranteed by either the lessee or a third-party.

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The net book value of the asset(s) sold in connection with the sale of the property to another party and lease back to the seller.

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Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases.

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Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in fifth fiscal year following latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest statement of financial position date.

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Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in fourth fiscal year following latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in the next fiscal year following latest fiscal year. Excludes interim and annual periods when interim periods are reported on rolling approach, from latest statement of financial position date.

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Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases after fifth fiscal year following latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest statement of financial position date.

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Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in third fiscal year following latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest statement of financial position date.

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Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in second fiscal year following latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest statement of financial position date.

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Amount of residual asset covered by residual value guarantee under sales-type lease. Excludes guarantee considered to be lease payments for lessor.

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