Blueknight Energy Partners (BKEP) 10-K 10 Mar 21 2020 FY Annual report Financial data

Document And Entity Information

Document And Entity Information - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Mar. 04, 2021	Jun. 30, 2020
Document Information [Line Items]
Entity Registrant Name	Blueknight Energy Partners, L.P.
Entity Central Index Key	0001392091
Trading Symbol	bkep
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Entity Emerging Growth Company	false
Entity Small Business	true
Entity Interactive Data Current	Yes
Entity Public Float			$ 53
Entity Shell Company	false
Document Type	10-K
Document Period End Date	Dec. 31, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Amendment Flag	false
Title of 12(b) Security	Common Units
Series A Preferred Unit [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding (in shares)		35,125,202
Common Unit [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding (in shares)		41,468,125

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 805	$ 589
Accounts receivable, net	3,297	2,686
Receivables from related parties, net	507	1,110
Other current assets	2,355	2,378
Current assets of discontinued operations	96,945	27,359
Total current assets	103,909	34,122
Property, plant and equipment, net of accumulated depreciation of $185,845 and $197,561 at December 31, 2019 and 2020, respectively	104,709	107,373
Goodwill	6,728	6,728
Debt issuance costs, net	1,340	2,344
Operating lease assets	8,548	9,901
Intangibles assets, net	7,531	9,913
Other noncurrent assets	252	393
Noncurrent assets of discontinued operations		131,166
Total assets	233,017	301,940
Current liabilities:
Accounts payable	1,635	2,433
Accounts payable to related parties	31	2,460
Contingent liability with related party (Note 12)		12,221
Accrued interest payable	274	293
Accrued property taxes payable	1,757	1,709
Accrued payroll	4,977	3,357
Current operating lease liability	1,684	1,856
Other current liabilities	1,349	1,531
Current liabilities of discontinued operations	17,248	24,278
Total current liabilities	35,347	54,576
Other long-term liabilities	168	1,596
Noncurrent operating lease liability	6,980	8,219
Noncurrent liabilities of discontinued operations		1,131
Long-term debt	252,592	255,592
Commitments and contingencies (Note 15)
Partners’ capital (deficit):
Common unitholders (40,830,051 and 41,214,856 units issued and outstanding at December 31, 2019 and 2020, respectively)	312,591	356,777
Preferred unitholders (35,125,202 units issued and outstanding at both dates)	253,923	253,923
General partner interest (1.6% interest with 1,225,409 general partner units outstanding at both dates)	(632,737)	(632,023)
Total partners’ capital (deficit)	(66,223)	(21,323)
Total liabilities and partners’ capital (deficit)	233,017	301,940
Third Party [Member]
Current liabilities:
Unearned revenue	1,789	1,504
Related Party [Member]
Current liabilities:
Unearned revenue	4,603	2,934
Long-term unearned revenue with related parties	$ 4,153	$ 2,149

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Accumulated depreciation	$ 197,561	$ 185,845
Common units, issued (in shares)	41,214,856	40,830,051
Common units, outstanding (in shares)	41,214,856	40,830,051
Preferred units, issued (in shares)	35,125,202	35,125,202
Preferred units, outstanding (in shares)	35,125,202	35,125,202
General partner units, interest	1.60%	1.60%
General partner units, outstanding (in shares)	1,225,409	1,225,409

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Total revenue	$ 110,245	$ 106,518
Costs and expenses:
Operating expense	62,812	61,563
General and administrative expense	14,182	13,388
Asset impairment expense		2,476
Total costs and expenses	76,994	77,427
Loss on sale of assets	(67)	(131)
Operating income	33,184	28,960
Other income (expenses):
Other income	1,169	530
Interest expense	(5,665)	(7,447)
Income before income taxes	28,688	22,043
Provision for income taxes	(7)	44
Income from continuing operations	28,695	21,999
Loss from discontinued operations, net	(42,175)	(3,587)
Net income(loss)	(13,480)	18,412
Allocation of net income (loss) for calculation of earnings per unit:
General partner interest in net income (loss)	(213)	337
Preferred interest in net income	25,115	25,115
Net loss available to limited partners	$ (38,382)	$ (7,040)
Basic and diluted net loss from discontinued operations per common unit (in dollars per share)	$ (0.98)	$ (0.08)
Basic and diluted net income(loss) from continuing operations per common unit (in dollars per share)	0.07	(0.09)
Basic and diluted net loss per common unit (in dollars per share)	$ (0.91)	$ (0.17)
Weighted average common units outstanding - basic and diluted (in shares)	41,104	40,755
Third Party [Member]
Revenue	$ 29,171	$ 28,689
Operating Lease, Lease Income, Total	36,630	41,690
Related Party [Member]
Revenue	18,028	15,696
Operating Lease, Lease Income, Total	26,416	20,443
Service [Member] | Third Party [Member]
Revenue	29,171	28,689
Service [Member] | Related Party [Member]
Revenue	$ 18,028	$ 15,696

Consolidated Statements of Chan

Consolidated Statements of Changes in Partners' Capital (Deficit) - USD ($) $ in Thousands	Total	Limited Partner [Member]	Preferred Partner [Member]	General Partner [Member]
Balance at Dec. 31, 2018	$ (6,896)	$ 370,972	$ 253,923	$ (631,791)
Net income(loss)	18,412	(6,990)	25,115	287
Equity-based incentive compensation	973	953		20
Distributions	(33,988)	(8,334)	(25,115)	(539)
Proceeds from sale of common units pursuant to the Employee Unit Purchase Plan	176	176
Balance at Dec. 31, 2019	(21,323)	356,777	253,923	(632,023)
Net income(loss)	(13,480)	(38,382)	25,115	(213)
Equity-based incentive compensation	816	804		12
Distributions	(32,406)	(6,778)	(25,115)	(513)
Proceeds from sale of common units pursuant to the Employee Unit Purchase Plan	170	170
Balance at Dec. 31, 2020	$ (66,223)	$ 312,591	$ 253,923	$ (632,737)

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Partners' Capital (Deficit) (Parentheticals) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Limited Partner [Member]
Common units issued pursuant to the Employee Unit Purchase Plan (in shares)	158,326	161,971

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Cash flows from operating activities:
Net income(loss)	$ (13,480)	$ 18,412
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	23,068	25,533
Amortization and write-off of debt issuance costs	1,004	1,005
Loss on disposal/classification of held for sale for discontinued operations	39,096
Tangible asset impairment charge	6,416	274
Other impairment charge (Note 12)		2,202
Gain on sale of assets	(1,123)	(453)
Equity-based incentive compensation	816	973
Changes in assets and liabilities:
Decrease in accounts receivable	6,461	9,325
Decrease (increase) in receivables from related parties	603	(67)
Decrease in other current assets	4,094	2,672
Decrease in other non-current assets	2,324	2,964
Decrease in accounts payable	(557)	(702)
Decrease in payables to related parties	(1,792)	(282)
Decrease in accrued interest payable	(19)	(172)
Increase (decrease) in accrued property taxes	(671)	158
Increase (decrease) in unearned revenue	(1,618)	(1,961)
Increase in accrued payroll	1,617	1,156
Decrease in other accrued liabilities	(2,223)	(3,579)
Net cash provided by operating activities	61,167	49,837
Cash flows from investing activities:
Acquisition of DEVCO from Ergon (Note 12)	(12,221)
Capital expenditures	(16,332)	(12,746)
Proceeds from sale of assets	5,896	8,410
Net cash used in investing activities	(22,657)	(4,336)
Cash flows from financing activities:
Payments on other financing activities	(3,027)	(2,586)
Borrowings under credit agreement	228,000	291,000
Payments under credit agreement	(231,000)	(301,000)
Proceeds from equity issuance	170	176
Distributions	(32,406)	(33,988)
Net cash used in financing activities	(38,263)	(46,398)
Net increase (decrease) in cash and cash equivalents	247	(897)
Cash and cash equivalents at beginning of period	558	1,455
Cash and cash equivalents at end of period	805	558
Supplemental disclosure of non-cash financing and investing cash flow information:
Non-cash changes in property, plant and equipment	(259)	1,590
Increase in accrued liabilities related to insurance premium financing agreement	2,324	2,356
Cash paid for interest, net of amounts capitalized	10,009	15,150
Cash paid for income taxes	30	227
Third Party [Member]
Changes in assets and liabilities:
Increase (decrease) in accrued crude oil purchases	(2,838)	(7,243)
Related Party [Member]
Changes in assets and liabilities:
Increase (decrease) in accrued crude oil purchases	(2,965)	1,588
Increase (decrease) in unearned revenue	$ 2,954	$ (1,966)

Note 1 - Organization and Natur

Note 1 - Organization and Nature of Business	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Business Description and Basis of Presentation [Text Block]	1. ORGANIZATION AND NATURE OF BUSINESS Blueknight Energy Partners, L.P. and subsidiaries (collectively, the “Partnership”) is a publicly traded master limited partnership with operations in 26 one February 2007 The Partnership previously provided integrated terminalling, gathering, and transportation services for companies engaged in the production, distribution, and marketing of crude oil in three December 21, 2020, February 1, 2021, February 2, 2021, March 1, 2021. one no

Note 2 - Basis of Consolidation

Note 2 - Basis of Consolidation and Presentation	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Basis of Accounting [Text Block]	2. BASIS OF CONSOLIDATION AND PRESENTATION The accompanying consolidated financial statements and related notes present and discuss the Partnership's consolidated financial position as of December 31, 2019 2020 December 31, 2019 2020

Note 3 - Summary of Significant

Note 3 - Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Significant Accounting Policies [Text Block]	3. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES USE OF ESTIMATES 1 2 3 4 5 6 CASH AND CASH EQUIVALENTS three ACCOUNTS RECEIVABLE not no not no December 31, 2019 2020 PROPERTY, PLANT AND EQUIPMENT not Depreciation is calculated using the straight-line method based on estimated useful lives of the assets. These estimates are based on various factors, including age (in the case of acquired assets), manufacturing specifications, technological advances and historical data concerning useful lives of similar assets. Uncertainties that impact these estimates include changes in laws and regulations relating to restoration and abandonment requirements, economic conditions and supply and demand in the area. When assets are put into service, management makes estimates with respect to useful lives and salvage values that it believes are reasonable. However, subsequent events could cause management to change its estimates, thus impacting the future calculation of depreciation. The Partnership has contractual obligations to perform dismantlement and removal activities in the event that some of its liquid asphalt terminalling assets are abandoned (see Note 15 IMPAIRMENT OF LONG-LIVED ASSETS AND OTHER INTANGIBLE ASSETS not may not not During the year ended December 31, 2019, $0.3 $2.2 Acquired customer relationships are capitalized and amortized over useful lives ranging from approximately 5 10 not no December 31, 2019 2020. DEBT ISSUANCE COSTS not GOODWILL not December one not 3 no 2020 2019. no 2019 2020 ENVIRONMENTAL MATTERS no December 31, 2019 2020 REVENUE RECOGNITION 606 842. 4 INCOME AND OTHER TAXES December 31, 2019 2020 19 STOCK-BASED COMPENSATION 8.1 The Partnership classifies unit award grants as either equity or liability awards. All award grants made under the LTIP from its inception through December 31, 2020 not FAIR VALUE OF FINANCIAL INSTRUMENTS LEASES The Partnership is both a lessee and a lessor. For lessee contracts, the length of lease agreements vary from less than one twenty-five not 12 not 4

Note 4 - Revenue

Note 4 - Revenue	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Revenue [Text Block]	4. REVENUE There are two ASC 842 842 606, first Asphalt storage, throughput and handling contracts also contain variable consideration in the form of reimbursements of utility, fuel and power expenses and throughput fees. Utility, fuel and power reimbursements are allocated entirely to the service component of the contracts. Utility, fuel and power reimbursements relate directly to the distinct monthly service that makes up the overall performance obligation and revenue is recognized in the period in which the service takes place. Variable consideration related to reimbursements of utility, fuel and power expenses is billed in the month subsequent to the period of service, and payment is due within 30 842, 842, 606. 30 Certain asphalt storage, throughput and handling contracts contain provisions for reimbursement of specified major maintenance costs. Reimbursements of specified major maintenance costs are allocated to both the lease and service component of the contracts using the allocation percentages from contract inception, and they are recognized on a straight-line basis over the remaining term of the contract. The following table includes revenue associated with contractual commitments in place related to future performance obligations as of the end of the reporting period, which are expected to be recognized in revenue in the specified periods (in thousands): Revenue from Contracts with Revenue from Customers(1) Leases 2021 $ 39,003 $ 58,265 2022 31,662 47,459 2023 27,985 40,265 2024 28,028 40,312 2025 26,711 37,397 Thereafter 37,374 42,603 Total revenue related to future performance obligations $ 190,763 $ 266,301 ( 1 Excluded from the table is revenue that is either constrained or related to performance obligations that are wholly unsatisfied as of December 31, 2020. Disaggregation of Revenue Disaggregation of revenue from contracts with customers by revenue type is presented as follows (in thousands): Year ended December 31, 2019 Revenue from contracts with customers Lease revenue Third-party revenue Related-party revenue Third-party revenue Related-party revenue Fixed storage, throughput and other revenue $ 19,865 $ 11,117 $ - $ - Fixed lease revenue - - 37,176 19,060 Variable cost recovery revenue 7,121 4,473 2,270 448 Variable throughput and other revenue 1,703 106 2,244 935 Total $ 28,689 $ 15,696 $ 41,690 $ 20,443 Year ended December 31, 2020 Revenue from contracts with customers Lease revenue Fixed storage, throughput and other revenue $ 20,303 $ 14,531 $ - $ - Fixed lease revenue - - 32,498 24,547 Variable cost recovery revenue 6,620 3,076 2,205 763 Variable throughput and other revenue 2,248 421 1,927 1,106 Total $ 29,171 $ 18,028 $ 36,630 $ 26,416 Contract Balances The timing of revenue recognition, billings and cash collections result in billed accounts receivable and unearned revenue (contract liabilities) on the consolidated balance sheets as noted in the contract discussions above. Accounts receivable are reflected in the line items “Accounts receivable” and “Receivables from related parties” on the consolidated balance sheets. Unearned revenue is included in the line items “Unearned revenue,” “Unearned revenue with related parties,” “Long-term unearned revenue with related parties” and “Other long-term liabilities” on the consolidated balance sheets. Billed accounts receivable from contracts with customers were $2.1 December 31, 2019 2020 The Partnership records unearned revenues when cash payments are received in advance of performance. Unearned revenue related to contracts with customers was $2.2 $3.2 December 31, 2019 2020 December 31, 2020 $1.8 Practical Expedients and Exemptions The Partnership does not one

Note 5 - Discontinued Operation

Note 5 - Discontinued Operations	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]	5. DISCONTINUED OPERATIONS On December 21, 2020, two one December 15, 2020, one February 2, 2021. February 1, 2021. December 31, 2020 March 1, 2021. December 31, 2019 2020. As part of the crude oil pipeline sale, $1.5 six two Exit and disposal costs related to these sales, in the form of employee severance payments, are expected to total approximately $1.6 During the year ended December 31, 2020, $1.3 $4.9 first 2020 March 31, 2020. $2.3 $2.6 Assets and Liabilities of Discontinued Operations (in thousands) As of December 31, 2019 Crude Oil Trucking Services Crude Oil Pipeline Services Crude Oil Terminalling Services Total ASSETS Accounts receivable, net $ 822 $ 20,041 $ 166 $ 21,029 Other current assets 256 2,699 3,375 6,330 Plant, property, and equipment 3,120 62,590 59,692 125,402 Operating lease assets 745 113 - 858 Other noncurrent assets 211 2,657 2,038 4,906 Total assets of discontinued operations $ 5,154 $ 88,100 $ 65,271 $ 158,525 LIABILITIES Current liabilities $ 1,238 $ 21,277 $ 1,228 $ 23,743 Current operating lease liability 520 15 - 535 Noncurrent operating lease liability 223 88 - 311 Other liabilities 122 226 472 820 Total liabilities of discontinued operations $ 2,103 $ 21,606 $ 1,700 $ 25,409 Assets and Liabilities of Discontinued Operations (in thousands) As of December 31, 2020 Crude Oil Trucking Services Crude Oil Pipeline Services Crude Oil Terminalling Services Total ASSETS Accounts receivable, net $ 81 $ 13,711 $ 167 $ 13,959 Plant, property, and equipment 442 23,541 52,854 76,837 Other assets 331 547 5,271 6,149 Total assets of discontinued operations $ 854 $ 37,799 $ 58,292 $ 96,945 LIABILITIES Current liabilities $ 1,017 $ 14,921 $ 1,310 $ 17,248 Total liabilities of discontinued operations $ 1,017 $ 14,921 $ 1,310 $ 17,248 Statement of Operations for Discontinued Operations (in thousands) Year Ended December 31, 2019 Crude Oil Trucking Services Crude Oil Pipeline Services Crude Oil Terminalling Services Total Revenue: Third-party service revenue $ 11,061 $ 6,686 $ 15,362 $ 33,109 Related-party service revenue - 266 - 266 Intercompany service revenue 5,555 - 931 6,486 Third-party product sales revenue - 231,051 - 231,051 Costs and expenses: Operating expense 16,763 16,088 9,012 41,863 Intercompany operating expense - 6,486 - 6,486 Cost of product sales - 83,319 - 83,319 Cost of product sales from related party - 134,162 - 134,162 General and administrative expense 267 438 1 706 (Gain) loss on sale of assets (1,497 ) 836 77 (584 ) Interest expense 11 1,598 6,919 8,528 Income (loss) before income taxes 1,072 (4,924 ) 284 (3,568 ) Provision for income taxes 15 4 - 19 Net income (loss) from discontinued operations $ 1,057 $ (4,928 ) $ 284 $ (3,587 ) Statement of Operations for Discontinued Operations (in thousands) Year Ended December 31, 2020 Crude Oil Trucking Services Crude Oil Pipeline Services Crude Oil Terminalling Services Total Revenue: Third-party service revenue $ 5,293 $ 1,689 $ 16,856 $ 23,838 Intercompany service revenue 5,587 - - 5,587 Third-party product sales revenue - 157,544 - 157,544 Costs and expenses: Operating expense 12,386 13,427 8,561 34,374 Intercompany operating expense - 5,587 - 5,587 Cost of product sales - 52,624 - 52,624 Cost of product sales from related party - 86,247 - 86,247 General and administrative expense 284 385 - 669 Asset impairment expense 1,330 2,821 2,266 6,417 Gain on sale of assets (11 ) (445 ) (734 ) (1,190 ) Interest expense 11 960 4,348 5,319 Loss on disposal/classification as held for sale(1) 1,847 37,249 - 39,096 Income (loss) before income taxes (4,967 ) (39,622 ) 2,415 (42,174 ) Provision for income taxes 3 (2 ) - 1 Net income (loss) from discontinued operations $ (4,970 ) $ (39,620 ) $ 2,415 $ (42,175 ) ( 1 Included in the crude oil trucking services segment is a loss on disposal recorded during December 2020 first $1.1 December 31, 2020, second February 2, 2021, $0.7 Select cash flow information (in thousands) Year Ended December 31, 2019 Crude Oil Trucking Services Crude Oil Pipeline Services Crude Oil Terminalling Services Total Depreciation and amortization $ 538 $ 5,332 $ 4,466 $ 10,336 Capital expenditures $ 2,168 $ 1,846 $ 874 $ 4,888 Year Ended December 31, 2020 Depreciation and amortization $ 719 $ 4,550 $ 4,383 $ 9,652 Capital expenditures $ 2,074 $ 4,555 $ 720 $ 7,349

Note 6 - Property, Plant and Eq

Note 6 - Property, Plant and Equipment	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Property, Plant and Equipment Disclosure [Text Block]	6 . PROPERTY, PLANT AND EQUIPMENT Estimated Useful Lives As of December 31, (Years) 2019 2020 (dollars in thousands) Land N/A $ 21,876 $ 21,826 Land improvements 10 20 5,139 5,024 Storage and terminal facilities 10 35 241,733 249,977 Office property and equipment and other 3 30 21,099 23,278 Construction-in-progress N/A 3,371 2,165 Property, plant and equipment, gross 293,218 302,270 Accumulated depreciation (185,845 ) (197,561 ) Property, plant and equipment, net $ 107,373 $ 104,709 Property, plant and equipment under operating leases at December 31, 2020 $295.4 $191.0 Depreciation expense for the years ended December 31, 2019 2020 $12.8 $11.0

Note 7 - Intangible Assets, Net

Note 7 - Intangible Assets, Net	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Intangible Assets Disclosure [Text Block]	7 . INTANGIBLE ASSETS, NET Intangible assets, net of accumulated amortization, consist of the following: As of December 31, 2019 2020 (in thousands) Customer relationships $ 16,022 $ 16,022 Accumulated amortization of intangible assets (6,109 ) (8,491 ) Intangible assets, net $ 9,913 $ 7,531 Amortization expense related to intangibles for each of the years ended December 31, 2019 2020 $2.4 For year ending: December 31, 2021 $ 2,382 December 31, 2022 2,382 December 31, 2023 958 December 31, 2024 958 December 31, 2025 851 Thereafter - Total estimated aggregate amortization expense $ 7,531 Customer relationships include $7.6 $8.4 March 2018 February 2016, 5 10

Note 8 - Debt

Note 8 - Debt	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Debt Disclosure [Text Block]	8 . DEBT On May 11, 2017, June 28, 2018, $450.0 $400.0 As of March 4, 2021 $99.6 $1.7 $248.7 may January 8, 2021, $350.0 The credit agreement is guaranteed by all of the Partnership's existing subsidiaries. Obligations under the credit agreement are secured by first The credit agreement includes procedures for additional financial institutions to become revolving lenders, or for any existing lender to increase its revolving commitment thereunder, subject to an aggregate maximum of $600.0 The credit agreement will mature on May 11, 2022, not Borrowings under the credit agreement bear interest, at the Partnership's option, at either the reserve-adjusted eurodollar rate (as defined in the credit agreement) plus an applicable margin which ranges from 2.0% 3.25% 0.5% 30 1.0% 1.0% 2.25%. 0.375% 0.5% The credit agreement includes financial covenants which are tested on a quarterly basis, based on the rolling four Prior to the date on which the Partnership issues qualified senior notes in an aggregate principal amount (when combined with all other qualified senior notes previously or concurrently issued) that equals or exceeds $200.0 4.75 1.00 December 31, 2020, may 5.25 1.00 $15.0 From and after the date on which the Partnership issues qualified senior notes in an aggregate principal amount (when combined with all other qualified senior notes previously or concurrently issued) that equals or exceeds $200.0 5.00 1.00; second 5.50 1.00. The maximum permitted consolidated senior secured leverage ratio (as defined in the credit agreement, but generally computed as the ratio of consolidated total secured debt to consolidated earnings before interest, taxes, depreciation, amortization and certain other non-cash charges) is 3.50 1.00, $200.0 The minimum permitted consolidated interest coverage ratio (as defined in the credit agreement, but generally computed as the ratio of consolidated earnings before interest, taxes, depreciation, amortization and certain other non-cash charges to consolidated interest expense) is 2.50 1.00. In addition, the credit agreement contains various covenants that, among other restrictions, limit the Partnership's ability to: • create, issue, incur or assume indebtedness; • create, incur or assume liens; • engage in mergers or acquisitions; • sell, transfer, assign or convey assets; • repurchase the Partnership's equity, make distributions to unitholders and make certain other restricted payments; • make investments; • modify the terms of certain indebtedness, or prepay certain indebtedness; • engage in transactions with affiliates; • enter into certain hedging contracts; • enter into certain burdensome agreements; • change the nature of the Partnership's business; and • make certain amendments to the Partnership's partnership agreement. At December 31, 2020 3.83 1.00 6.66 1.00. December 31, 2020 Management evaluates whether conditions and/or events raise substantial doubt about the Partnership's ability to continue as a going concern within one Based on the Partnership's forecasted EBITDA during the assessment period, management believes that it will meet these financial covenants. However, the Partnership cannot make any assurances that it will be able to achieve management's forecasts. If the Partnership is unable to achieve management's forecasts, further actions may not no may $252.6 December 31, 2020 not The credit agreement permits the Partnership to make quarterly distributions of available cash (as defined in the Partnership's partnership agreement) to unitholders so long as no 10 In addition to other customary events of default, the credit agreement includes an event of default if: (i) the general partner ceases to own 100% (ii) Ergon ceases to own and control 50.0% (iii) during any period of 12 (A) who were members of the Board on the first (B) whose election or nomination to the Board was approved by individuals referred to in clause (A) above constituting at the time of such election or nomination at least a majority of the Board; or (C) whose election or nomination to the Board was approved by individuals referred to in clauses (A) and (B) above constituting at the time of such election or nomination at least a majority of the Board, provided that any changes to the composition of individuals serving as members of the Board approved by Ergon will not If an event of default relating to bankruptcy or other insolvency events occurs with respect to the general partner or the Partnership, all indebtedness under the credit agreement will immediately become due and payable. If any other event of default exists under the credit agreement, the lenders may may If any default occurs under the credit agreement, or if the Partnership is unable to make any of the representations and warranties in the credit agreement, the Partnership will be unable to borrow funds or have letters of credit issued under the credit agreement. Debt issuance costs are being amortized over the term of the credit agreement. Interest expense related to debt issuance cost amortization for both of the years ended December 31, 2019 2020 $1.0 During the years ended December 31, 2019 2020 6.00% 3.97% $7.4 $5.6

Note 9 - Net Income Per Limited

Note 9 - Net Income Per Limited Partner Unit	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Earnings Per Share [Text Block]	9 . NET INCOME PER LIMITED PARTNER UNIT For purposes of calculating earnings per unit, the excess of distributions over earnings or excess of earnings over distributions for each period are allocated to the Partnership's general partner based on the general partner's ownership interest at the time. The following sets forth the computation of basic and diluted net income per common unit (in thousands, except per unit data): Year ended December 31, 2019 2020 Net income(loss) $ 18,412 $ (13,480 ) General partner interest in net income (loss) 337 (213 ) Preferred interest in net income 25,115 25,115 Net loss available to limited partners $ (7,040 ) $ (38,382 ) Basic and diluted weighted average number of units: Common units 40,755 41,104 Restricted and phantom units 1,023 1,285 Total units 41,778 42,389 Basic and diluted net loss from discontinued operations per common unit $ (0.08 ) $ (0.98 ) Basic and diluted net income(loss) from continuing operations per common unit $ (0.09 ) $ 0.07 Basic and diluted net loss per common unit $ (0.17 ) $ (0.91 )

Note 10 - Partners' Capital (De

Note 10 - Partners' Capital (Deficit) and Distributions	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Partners' Capital Notes Disclosure [Text Block]	10 . PARTNERS' CAPITAL (DEFICIT) AND DISTRIBUTIONS In accordance with the terms of its partnership agreement, each quarter the Partnership distributes all of its available cash (as defined in the partnership agreement) to its unitholders. Generally, distributions are allocated as follows: • first, 98.4% 1.6% • second, 98.4% 1.6% • thereafter, 98.4% 1.6% $0.11 The Preferred Units are convertible at the holders' option into common units. Holders of the Preferred Units are entitled to quarterly distributions of $0.17875 The general partner receives incentive distribution rights. Incentive distribution rights represent the right to receive an increasing percentage ( 13.0%, 23.0% 48.0% may • the Partnership has distributed available cash from operating surplus to the holders of our Preferred Units in an amount equal to the Preferred Units quarterly distribution amount; • the Partnership has distributed available cash from operating surplus to the holders of our Preferred Units in an amount necessary to eliminate any cumulative arrearages in the payment of the Preferred Units quarterly distribution amount; and • the Partnership has distributed available cash from operating surplus to the common unitholders and Class B unitholders in an amount equal to the minimum quarterly distribution; then the partnership agreement requires that the Partnership distribute any additional available cash from operating surplus for that quarter among the unitholders and the general partner in the following manner: • first, 98.4% 1.6% $0.1265 • second, 85.4% 14.6% $0.1375 • third, 75.4% 24.6% $0.1825 • thereafter, 50.4% 49.6% Distributions are also paid to the holders of restricted units and phantom units as disclosed in Note 13. The Partnership paid the following distributions on the Preferred Units during the years ended December 31, 2019 2020 Year Paid to Preferred Partner Paid Periods Covered Total Unitholders Paid to General 2019 Quarters ending December 31, 2018, March 31, 2019, June 30, 2019 and September 30, 2019 $ 25,521 $ 25,115 $ 406 2020 Quarters ending December 31, 2019, March 31, 2020, June 30, 2020 and September 30, 2020 $ 25,519 $ 25,115 $ 404 In addition, on January 26, 2021 $0.17875 December 31, 2020 February 12, 2021 February 5, 2021 $6.4 $6.3 $0.1 The Partnership paid the following distributions on the common units during the years ended December 31, 2019 2020 Year Paid to Common Paid to General Paid to Phantom and Restricted Unitholders Under Paid Periods Covered Total Unitholders Partner the LTIP 2019 Quarters ending December 31, 2018, March 31, 2019, June 30, 2019 and September 30, 2019 $ 8,468 $ 8,150 $ 135 $ 183 2020 Quarters ending December 31, 2019, March 31, 2020, June 30, 2020 and September 30, 2020 $ 6,887 $ 6,576 $ 109 $ 202 In addition, on January 26, 2021 $0.04 December 31, 2020 February 12, 2021 February 5, 2021 $1.7 $1.7 $0.1

Note 11 - Major Customers and C

Note 11 - Major Customers and Concentration of Credit Risk	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Concentration Risk Disclosure [Text Block]	11 . MAJOR CUSTOMERS AND CONCENTRATION OF CREDIT RISK Significant customers are defined as those who represent 10% For the year ended December 31, 2020 40% two third 12% 15% For the year ended December 31, 2019 34% two third 12% 16%

Note 12 - Related-party Transac

Note 12 - Related-party Transactions	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Related Party Transactions Disclosure [Text Block]	12 . RELATED-PARTY TRANSACTIONS The Partnership leases facilities to Ergon and provides liquid asphalt terminalling services to Ergon. For the years ended December 31, 2019 2020 $36.1 $44.4 December 31, 2019 2020 $1.1 $0.5 Effective April 1, 2018, December 31, 2019 2020 $133.5 $92.1 December 31, 2020 $8.7 December January 20, 2021. February 1, 2021. As of December 31, 2019, a contingent liability to Ergon of $12.2 December 2018. $2.2 December 31, 2019, January 3, 2020, December 31, 2020. Ergon 2016 In October 2016, 2016 nine July 2018, one 2016 October 5, 2016, August 2020, 2020 December 31, 2019 2020 $20.0 $12.0 Ergon Fontana and Las Vegas Storage Throughput and Handling Agreement In October 2016, two May 18, 2009, 2018. March 2019 January 1, 2019, August 1, 2020, 2020 December 31, 2019 2020 $6.0 $3.5 Ergon Lessee Operated Facility Lease Agreement and Previous Agreements In March 2019, 12 two January 1, 2019, August 1, 2020, 2020 December 31, 2019 2020, $8.3 $4.4 Ergon 2020 In August 2020, “2020 August 1, 2020, three 22 December 31, 2027. December 31, 2020, $16.8 Ergon Operating and Maintenance Agreement In August 2020, August 1, 2020, 22 2020 December 31, 2025, one December 31, 2020, $7.7

Note 13 - Long-term Incentive P

Note 13 - Long-term Incentive Plan	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Share-based Payment Arrangement [Text Block]	13 . LONG-TERM INCENTIVE PLAN In July 2007, 8.1 Subject to applicable earning criteria, a DER entitles the grantee to a cash payment equal to the cash distribution paid on an outstanding common unit prior to the vesting date of the underlying award. Recipients of restricted and phantom units are entitled to receive cash distributions paid on common units during the vesting period which are reflected initially as a reduction of partners' capital. Distributions paid on units that ultimately do not In connection with each anniversary of joining the Board, restricted common units are granted to the independent directors. The units vest in one third three Weighted Average Grant Date Total Fair Number of Grant Date Fair Value Grant Date Units Value (in thousands) December 2018 23,436 $ 1.20 $ 28 December 2019 7,500 $ 1.07 $ 8 December 2020 7,500 $ 2.06 $ 15 The Partnership also grants phantom units to employees. These grants are equity awards under ASC 718 Weighted Average Grant Date Total Fair Number of Grant Date Fair Value Grant Date Units Value (in thousands) March 2018 396,536 $ 4.77 $ 1,891 March 2019 524,997 $ 1.14 $ 598 June 2019 46,168 $ 1.08 $ 50 March 2020 600,396 $ 0.90 $ 540 October 2020 16,339 $ 1.53 $ 25 Compensation expense for the equity awards is calculated as the number of unit awards less forfeitures, multiplied by the grand date fair value of those awards. The Partnership estimates forfeiture rates based on historical forfeitures under the LTIP. The unrecognized estimated compensation cost relating to outstanding phantom and restricted units at December 31, 2019 $0.5 January 1, 2021, 279,581 March 2018 The Partnership's equity-based incentive compensation expense for the years ended December 31, 2019 2020 $0.9 $0.8 Activity pertaining to phantom common units and restricted common unit awards granted under the LTIP is as follows: Number of Grant Date Fair Units Value Nonvested, December 31, 2019 1,068,343 $ 3.42 Granted 624,235 0.93 Vested 322,608 5.43 Forfeited 19,604 1.90 Nonvested, December 31, 2020 1,350,366 $ 1.81

Note 14 - Employee Benefit Plan

Note 14 - Employee Benefit Plan	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Compensation and Employee Benefit Plans [Text Block]	14 . EMPLOYEE BENEFIT PLAN Under the Partnership's 401 2009, may 401 may $0.6 December 31, 2019 2020 401 The Partnership may 401 may 401 401 $0.4 $0.6 December 31, 2019 2020 401 Under the Partnership's Employee Unit Purchase Plan (the “Unit Purchase Plan”), which was instituted in January 2015, may 1,000,000 may 2019 2020.

Note 15 - Commitments and Conti

Note 15 - Commitments and Contingencies	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	15 . COMMITMENTS AND CONTINGENCIES The Partnership is from time to time subject to various legal actions and claims incidental to its business. Management believes that these legal proceedings will not The Partnership has contractual obligations to perform dismantlement and removal activities in the event that some of its liquid asphalt terminalling assets are abandoned. These obligations include varying levels of activity, including completely removing the assets and returning the land to its original state. The Partnership has determined that the settlement dates related to the retirement obligations are indeterminate. The assets with indeterminate settlement dates have been in existence for many years and with regular maintenance will continue to be in service for many years to come. Also, it is not not no not

Note 16 - Environmental Remedia

Note 16 - Environmental Remediation	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Environmental Loss Contingency Disclosure [Text Block]	1 6 . ENVIRONMENTAL REMEDIATION The Partnership maintains insurance of various types with varying levels of coverage that it considers adequate under the circumstances to cover its operations and properties. The insurance policies are subject to deductibles and retention levels that the Partnership considers reasonable and not may At December 31, 2019 2020 may no December 31, 2019 2020 may

Note 17 - Fair Value Measuremen

Note 17 - Fair Value Measurements	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Fair Value Disclosures [Text Block]	17 . FAIR VALUE MEASUREMENTS The Partnership uses valuation techniques, such as the market approach (comparable market prices), the income approach (present value of future income or cash flow) and the cost approach (cost to replace the service capacity of an asset or replacement cost) to value these assets and liabilities as appropriate. The Partnership uses an exit price when determining the fair value. The exit price represents amounts that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. The Partnership utilizes a three three three Level 1 Observable inputs such as quoted prices (unadjusted) in active markets for identical assets or liabilities. Level 2 Inputs other than quoted prices that are observable for these assets or liabilities, either directly or indirectly. These include quoted prices for similar assets or liabilities in active markets and quoted prices for identical or similar assets or liabilities in markets that are not Level 3 Unobservable inputs in which there is little market data, which requires the reporting entity to develop its own assumptions. This hierarchy requires the use of observable market data, when available, to minimize the use of unobservable inputs when determining fair value. In periods in which they occur, the Partnership recognizes transfers into and out of Level 3 3 3 Fair Value of Other Financial Instruments The following disclosure of the estimated fair value of financial instruments is made in accordance with accounting guidance for financial instruments. The Partnership has determined the estimated fair values by using available market information and valuation methodologies. Considerable judgment is required in interpreting market data to develop the estimates of fair value. The use of different market assumptions or valuation methodologies may At December 31, 2020 1 Based on the borrowing rates currently available to the Partnership for credit agreement debt with similar terms and maturities and consideration of the Partnership's non-performance risk, long-term debt associated with the Partnership's credit agreement at December 31, 2020 3.

Note 18 - Leases

Note 18 - Leases	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Lessee, Operating Leases [Text Block]	18. LEASES The Partnership leases certain office space and land under operating leases. Leases with an initial term of 12 not not not Some real property leases contain options to renew, with renewal terms that can extend indefinitely. The exercise of such lease renewal options is at the Partnership's sole discretion. The Partnership determines the lease term at the lease commencement date as the non-cancellable period of the lease, including options to extend or terminate the lease when such an option is reasonably certain to be exercised. The Partnership uses various data to analyze these options, including historical trends, current expectations and useful lives of assets related to the lease. Operating lease assets and liabilities are stated in separate line items on the consolidated balance sheets. Future commitments, including options to extend lease terms that are reasonably certain of being exercised, related to leases at December 31, 2020 Operating Leases Twelve months ending December 31, 2021 $ 1,913 Twelve months ending December 31, 2022 1,502 Twelve months ending December 31, 2023 1,428 Twelve months ending December 31, 2024 798 Twelve months ending December 31, 2025 704 Thereafter 5,386 Total 11,731 Less: Interest 3,067 Present value of lease liabilities $ 8,664 The following table summarizes the Partnership's total lease cost by type as well as cash flow information (in thousands): For the Year Ended December 31, Classification 2019 2020 Total Lease Cost by Type: Operating lease cost(1) Operating Expense 1,916 $ 1,953 Short-term lease cost Operating Expense 247 $ 172 Net lease cost $ 2,163 $ 2,125 Supplemental cash flow disclosures: Cash paid for amounts included in the measurement of lease liabilities: Payments on operating leases $ 1,349 $ 1,400 Leased assets obtained in exchange for new operating lease liabilities $ 1,714 $ 119 ( 1 Includes variable lease costs, which are immaterial. As of December 31, 2020 Lease Term and Discount Rate Weighted-average remaining operating lease term (years) 10.4 Weighted-average discount rate 5.87 %

Note 19 - Income Taxes

Note 19 - Income Taxes	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Income Tax Disclosure [Text Block]	19. INCOME TAXES The anticipated after-tax economic benefit of an investment in the Partnership's common units depends largely on the Partnership being treated as a partnership for federal income tax purposes. If less than 90% 7704 If the Partnership were treated as a corporation for federal income tax purposes, then it would pay federal income tax on its income at the applicable corporate tax rate and would likely pay state income tax at varying rates. Distributions would generally be taxed again to unitholders as corporate distributions and none The Partnership has entered into storage or lease contracts with third second 2009, October 2009, first 2010. none

Note 20 - Recently Issued Accou

Note 20 - Recently Issued Accounting Standards	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Accounting Standards Update and Change in Accounting Principle [Text Block]	20 . RECENTLY ISSUED ACCOUNTING STANDARDS In December 2019, 2019 12, 740 740. 740 three March 31, 2021, not

Note 21 - Subsequent Events

Note 21 - Subsequent Events	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Subsequent Events [Text Block]	21. SUBSEQUENT EVENTS On February 1 2, 2021, March 1, 2021, $164.0 January 8, 2021, $350.0

Significant Accounting Policies

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2020
Accounting Policies [Abstract]
Use of Estimates, Policy [Policy Text Block]	USE OF ESTIMATES 1 2 3 4 5 6
Cash and Cash Equivalents, Policy [Policy Text Block]	CASH AND CASH EQUIVALENTS three
Accounts Receivable [Policy Text Block]	ACCOUNTS RECEIVABLE not no not no December 31, 2019 2020
Property, Plant and Equipment, Policy [Policy Text Block]	PROPERTY, PLANT AND EQUIPMENT not Depreciation is calculated using the straight-line method based on estimated useful lives of the assets. These estimates are based on various factors, including age (in the case of acquired assets), manufacturing specifications, technological advances and historical data concerning useful lives of similar assets. Uncertainties that impact these estimates include changes in laws and regulations relating to restoration and abandonment requirements, economic conditions and supply and demand in the area. When assets are put into service, management makes estimates with respect to useful lives and salvage values that it believes are reasonable. However, subsequent events could cause management to change its estimates, thus impacting the future calculation of depreciation. The Partnership has contractual obligations to perform dismantlement and removal activities in the event that some of its liquid asphalt terminalling assets are abandoned (see Note 15
Impairment or Disposal of Long-Lived Assets, Including Intangible Assets, Policy [Policy Text Block]	IMPAIRMENT OF LONG-LIVED ASSETS AND OTHER INTANGIBLE ASSETS not may not not During the year ended December 31, 2019, $0.3 $2.2 Acquired customer relationships are capitalized and amortized over useful lives ranging from approximately 5 10 not no December 31, 2019 2020.
Debt, Policy [Policy Text Block]	DEBT ISSUANCE COSTS not
Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block]	GOODWILL not December one not 3 no 2020 2019. no 2019 2020
Environmental Costs, Policy [Policy Text Block]	ENVIRONMENTAL MATTERS no December 31, 2019 2020
Revenue [Policy Text Block]	REVENUE RECOGNITION 606 842. 4
Income Tax, Policy [Policy Text Block]	INCOME AND OTHER TAXES December 31, 2019 2020 19
Share-based Payment Arrangement [Policy Text Block]	STOCK-BASED COMPENSATION 8.1 The Partnership classifies unit award grants as either equity or liability awards. All award grants made under the LTIP from its inception through December 31, 2020 not
Fair Value of Financial Instruments, Policy [Policy Text Block]	FAIR VALUE OF FINANCIAL INSTRUMENTS
Leases [Policy Text Block]	LEASES The Partnership is both a lessee and a lessor. For lessee contracts, the length of lease agreements vary from less than one twenty-five not 12 not 4

Note 4 - Revenue (Tables)

Note 4 - Revenue (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block]	Revenue from Contracts with Revenue from Customers(1) Leases 2021 $ 39,003 $ 58,265 2022 31,662 47,459 2023 27,985 40,265 2024 28,028 40,312 2025 26,711 37,397 Thereafter 37,374 42,603 Total revenue related to future performance obligations $ 190,763 $ 266,301
Disaggregation of Revenue [Table Text Block]	Year ended December 31, 2019 Revenue from contracts with customers Lease revenue Third-party revenue Related-party revenue Third-party revenue Related-party revenue Fixed storage, throughput and other revenue $ 19,865 $ 11,117 $ - $ - Fixed lease revenue - - 37,176 19,060 Variable cost recovery revenue 7,121 4,473 2,270 448 Variable throughput and other revenue 1,703 106 2,244 935 Total $ 28,689 $ 15,696 $ 41,690 $ 20,443 Year ended December 31, 2020 Revenue from contracts with customers Lease revenue Fixed storage, throughput and other revenue $ 20,303 $ 14,531 $ - $ - Fixed lease revenue - - 32,498 24,547 Variable cost recovery revenue 6,620 3,076 2,205 763 Variable throughput and other revenue 2,248 421 1,927 1,106 Total $ 29,171 $ 18,028 $ 36,630 $ 26,416

Note 5 - Discontinued Operati_2

Note 5 - Discontinued Operations (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Disposal Groups, Including Discontinued Operations [Table Text Block]	Assets and Liabilities of Discontinued Operations (in thousands) As of December 31, 2019 Crude Oil Trucking Services Crude Oil Pipeline Services Crude Oil Terminalling Services Total ASSETS Accounts receivable, net $ 822 $ 20,041 $ 166 $ 21,029 Other current assets 256 2,699 3,375 6,330 Plant, property, and equipment 3,120 62,590 59,692 125,402 Operating lease assets 745 113 - 858 Other noncurrent assets 211 2,657 2,038 4,906 Total assets of discontinued operations $ 5,154 $ 88,100 $ 65,271 $ 158,525 LIABILITIES Current liabilities $ 1,238 $ 21,277 $ 1,228 $ 23,743 Current operating lease liability 520 15 - 535 Noncurrent operating lease liability 223 88 - 311 Other liabilities 122 226 472 820 Total liabilities of discontinued operations $ 2,103 $ 21,606 $ 1,700 $ 25,409 Assets and Liabilities of Discontinued Operations (in thousands) As of December 31, 2020 Crude Oil Trucking Services Crude Oil Pipeline Services Crude Oil Terminalling Services Total ASSETS Accounts receivable, net $ 81 $ 13,711 $ 167 $ 13,959 Plant, property, and equipment 442 23,541 52,854 76,837 Other assets 331 547 5,271 6,149 Total assets of discontinued operations $ 854 $ 37,799 $ 58,292 $ 96,945 LIABILITIES Current liabilities $ 1,017 $ 14,921 $ 1,310 $ 17,248 Total liabilities of discontinued operations $ 1,017 $ 14,921 $ 1,310 $ 17,248 Statement of Operations for Discontinued Operations (in thousands) Year Ended December 31, 2019 Crude Oil Trucking Services Crude Oil Pipeline Services Crude Oil Terminalling Services Total Revenue: Third-party service revenue $ 11,061 $ 6,686 $ 15,362 $ 33,109 Related-party service revenue - 266 - 266 Intercompany service revenue 5,555 - 931 6,486 Third-party product sales revenue - 231,051 - 231,051 Costs and expenses: Operating expense 16,763 16,088 9,012 41,863 Intercompany operating expense - 6,486 - 6,486 Cost of product sales - 83,319 - 83,319 Cost of product sales from related party - 134,162 - 134,162 General and administrative expense 267 438 1 706 (Gain) loss on sale of assets (1,497 ) 836 77 (584 ) Interest expense 11 1,598 6,919 8,528 Income (loss) before income taxes 1,072 (4,924 ) 284 (3,568 ) Provision for income taxes 15 4 - 19 Net income (loss) from discontinued operations $ 1,057 $ (4,928 ) $ 284 $ (3,587 ) Statement of Operations for Discontinued Operations (in thousands) Year Ended December 31, 2020 Crude Oil Trucking Services Crude Oil Pipeline Services Crude Oil Terminalling Services Total Revenue: Third-party service revenue $ 5,293 $ 1,689 $ 16,856 $ 23,838 Intercompany service revenue 5,587 - - 5,587 Third-party product sales revenue - 157,544 - 157,544 Costs and expenses: Operating expense 12,386 13,427 8,561 34,374 Intercompany operating expense - 5,587 - 5,587 Cost of product sales - 52,624 - 52,624 Cost of product sales from related party - 86,247 - 86,247 General and administrative expense 284 385 - 669 Asset impairment expense 1,330 2,821 2,266 6,417 Gain on sale of assets (11 ) (445 ) (734 ) (1,190 ) Interest expense 11 960 4,348 5,319 Loss on disposal/classification as held for sale(1) 1,847 37,249 - 39,096 Income (loss) before income taxes (4,967 ) (39,622 ) 2,415 (42,174 ) Provision for income taxes 3 (2 ) - 1 Net income (loss) from discontinued operations $ (4,970 ) $ (39,620 ) $ 2,415 $ (42,175 ) Select cash flow information (in thousands) Year Ended December 31, 2019 Crude Oil Trucking Services Crude Oil Pipeline Services Crude Oil Terminalling Services Total Depreciation and amortization $ 538 $ 5,332 $ 4,466 $ 10,336 Capital expenditures $ 2,168 $ 1,846 $ 874 $ 4,888 Year Ended December 31, 2020 Depreciation and amortization $ 719 $ 4,550 $ 4,383 $ 9,652 Capital expenditures $ 2,074 $ 4,555 $ 720 $ 7,349

Note 6 - Property, Plant and _2

Note 6 - Property, Plant and Equipment (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Property, Plant and Equipment [Table Text Block]	Estimated Useful Lives As of December 31, (Years) 2019 2020 (dollars in thousands) Land N/A $ 21,876 $ 21,826 Land improvements 10 20 5,139 5,024 Storage and terminal facilities 10 35 241,733 249,977 Office property and equipment and other 3 30 21,099 23,278 Construction-in-progress N/A 3,371 2,165 Property, plant and equipment, gross 293,218 302,270 Accumulated depreciation (185,845 ) (197,561 ) Property, plant and equipment, net $ 107,373 $ 104,709

Note 7 - Intangible Assets, N_2

Note 7 - Intangible Assets, Net (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Schedule of Finite-Lived Intangible Assets [Table Text Block]	As of December 31, 2019 2020 (in thousands) Customer relationships $ 16,022 $ 16,022 Accumulated amortization of intangible assets (6,109 ) (8,491 ) Intangible assets, net $ 9,913 $ 7,531
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	For year ending: December 31, 2021 $ 2,382 December 31, 2022 2,382 December 31, 2023 958 December 31, 2024 958 December 31, 2025 851 Thereafter - Total estimated aggregate amortization expense $ 7,531

Note 9 - Net Income Per Limit_2

Note 9 - Net Income Per Limited Partner Unit (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	Year ended December 31, 2019 2020 Net income(loss) $ 18,412 $ (13,480 ) General partner interest in net income (loss) 337 (213 ) Preferred interest in net income 25,115 25,115 Net loss available to limited partners $ (7,040 ) $ (38,382 ) Basic and diluted weighted average number of units: Common units 40,755 41,104 Restricted and phantom units 1,023 1,285 Total units 41,778 42,389 Basic and diluted net loss from discontinued operations per common unit $ (0.08 ) $ (0.98 ) Basic and diluted net income(loss) from continuing operations per common unit $ (0.09 ) $ 0.07 Basic and diluted net loss per common unit $ (0.17 ) $ (0.91 )

Note 10 - Partners' Capital (_2

Note 10 - Partners' Capital (Deficit) and Distributions (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Distributions Made to Limited Partner, by Distribution [Table Text Block]	Year Paid to Preferred Partner Paid Periods Covered Total Unitholders Paid to General 2019 Quarters ending December 31, 2018, March 31, 2019, June 30, 2019 and September 30, 2019 $ 25,521 $ 25,115 $ 406 2020 Quarters ending December 31, 2019, March 31, 2020, June 30, 2020 and September 30, 2020 $ 25,519 $ 25,115 $ 404 Year Paid to Common Paid to General Paid to Phantom and Restricted Unitholders Under Paid Periods Covered Total Unitholders Partner the LTIP 2019 Quarters ending December 31, 2018, March 31, 2019, June 30, 2019 and September 30, 2019 $ 8,468 $ 8,150 $ 135 $ 183 2020 Quarters ending December 31, 2019, March 31, 2020, June 30, 2020 and September 30, 2020 $ 6,887 $ 6,576 $ 109 $ 202

Note 13 - Long-term Incentive_2

Note 13 - Long-term Incentive Plan (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Share-based Compensation Arrangements by Share-based Payment Award, Restricted Stock Units, Vested and Expected to Vest [Table Text Block]	Weighted Average Grant Date Total Fair Number of Grant Date Fair Value Grant Date Units Value (in thousands) December 2018 23,436 $ 1.20 $ 28 December 2019 7,500 $ 1.07 $ 8 December 2020 7,500 $ 2.06 $ 15 Weighted Average Grant Date Total Fair Number of Grant Date Fair Value Grant Date Units Value (in thousands) March 2018 396,536 $ 4.77 $ 1,891 March 2019 524,997 $ 1.14 $ 598 June 2019 46,168 $ 1.08 $ 50 March 2020 600,396 $ 0.90 $ 540 October 2020 16,339 $ 1.53 $ 25
Share-based Payment Arrangement, Activity [Table Text Block]	Number of Grant Date Fair Units Value Nonvested, December 31, 2019 1,068,343 $ 3.42 Granted 624,235 0.93 Vested 322,608 5.43 Forfeited 19,604 1.90 Nonvested, December 31, 2020 1,350,366 $ 1.81

Note 18 - Leases (Tables)

Note 18 - Leases (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Lessee, Operating Lease, Liability, Maturity [Table Text Block]	Operating Leases Twelve months ending December 31, 2021 $ 1,913 Twelve months ending December 31, 2022 1,502 Twelve months ending December 31, 2023 1,428 Twelve months ending December 31, 2024 798 Twelve months ending December 31, 2025 704 Thereafter 5,386 Total 11,731 Less: Interest 3,067 Present value of lease liabilities $ 8,664
Lease, Cost [Table Text Block]	For the Year Ended December 31, Classification 2019 2020 Total Lease Cost by Type: Operating lease cost(1) Operating Expense 1,916 $ 1,953 Short-term lease cost Operating Expense 247 $ 172 Net lease cost $ 2,163 $ 2,125 Supplemental cash flow disclosures: Cash paid for amounts included in the measurement of lease liabilities: Payments on operating leases $ 1,349 $ 1,400 Leased assets obtained in exchange for new operating lease liabilities $ 1,714 $ 119 As of December 31, 2020 Lease Term and Discount Rate Weighted-average remaining operating lease term (years) 10.4 Weighted-average discount rate 5.87 %

Note 1 - Organization and Nat_2

Note 1 - Organization and Nature of Business (Details Textual)	12 Months Ended
	Dec. 31, 2020
Number of States in which Entity Operates	26
Number of Operating Segments	1

Note 3 - Summary of Significa_2

Note 3 - Summary of Significant Accounting Policies (Details Textual) $ in Thousands, shares in Millions	12 Months Ended
	Dec. 31, 2020USD ($)shares	Dec. 31, 2019USD ($)
Accounts Receivable, Allowance for Credit Loss, Ending Balance	$ 0	$ 0
Tangible Asset Impairment Charges, Total	6,416	274
Other than Temporary Impairment Losses, Investments, Total		2,202
Impairment of Intangible Assets (Excluding Goodwill), Total	$ 0	0
Number of Reporting Units	1
Goodwill, Impairment Loss	$ 0	0
Accrual for Environmental Loss Contingencies, Ending Balance	$ 0	$ 0
Blueknight Energy Partners GP LLC Long Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares) | shares	8.1
Maximum [Member]
Lessee, Operating Lease, Term of Contract (Year)	25 years
Customer Relationships [Member] | Minimum [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	5 years
Customer Relationships [Member] | Maximum [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	10 years

Note 4 - Revenue (Details Textu

Note 4 - Revenue (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Billed Contracts Receivable	$ 2.1	$ 2.1
Contract with Customer, Liability, Total	2.2	$ 3.2
Contract with Customer, Liability, Revenue Recognized	$ 1.8

Note 4 - Revenue - Future Perfo

Note 4 - Revenue - Future Performance Obligations (Details) $ in Thousands	Dec. 31, 2020USD ($)
2021, Revenue from Leases	$ 58,265
2022, Revenue from Leases	47,459
2023, Revenue from Leases	40,265
2024, Revenue from Leases	40,312
2025, Revenue from Leases	37,397
Thereafter, Revenue from Leases	42,603
Revenue related to future performance obligation	190,763	[1]
Revenue from Leases	$ 266,301
[1]	Excluded from the table is revenue that is either constrained or related to performance obligations that are wholly unsatisfied as of December 31, 2020.

Note 4 - Revenue - Future Per_2

Note 4 - Revenue - Future Performance Obligations 2 (Details) $ in Thousands	Dec. 31, 2020USD ($)
Revenue related to future performance obligation	$ 190,763	[1]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Revenue related to future performance obligation	$ 39,003	[2]
Expected Timing of Satisfaction, Period (Year)	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Revenue related to future performance obligation	$ 31,662	[2]
Expected Timing of Satisfaction, Period (Year)	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Revenue related to future performance obligation	$ 27,985	[2]
Expected Timing of Satisfaction, Period (Year)	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01
Revenue related to future performance obligation	$ 28,028	[2]
Expected Timing of Satisfaction, Period (Year)	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01
Revenue related to future performance obligation	$ 26,711	[2]
Expected Timing of Satisfaction, Period (Year)	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01
Revenue related to future performance obligation	$ 37,374	[2]
Expected Timing of Satisfaction, Period (Year)
[1]	Excluded from the table is revenue that is either constrained or related to performance obligations that are wholly unsatisfied as of December 31, 2020.
[2]	Excluded from the table is revenue that is either constrained or related to performance obligations that are wholly unsatisfied as of December 31, 2020.

Note 4 - Revenue - Disaggregati

Note 4 - Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Third Party [Member]
Revenue from contracts with customers	$ 29,171	$ 28,689
Lease revenue	36,630	41,690
Third Party [Member] | Fixed Storageand Throughput Revenue [Member]
Revenue from contracts with customers	20,303	19,865
Lease revenue
Third Party [Member] | Fixed Lease Revenue [Member]
Revenue from contracts with customers
Lease revenue	32,498	37,176
Third Party [Member] | Variable Cost Recovery Revenue [Member]
Revenue from contracts with customers	6,620	7,121
Lease revenue	2,205	2,270
Third Party [Member] | Variable Throughput Revenue [Member]
Revenue from contracts with customers	2,248	1,703
Lease revenue	1,927	2,244
Related Party [Member]
Revenue from contracts with customers	18,028	15,696
Lease revenue	26,416	20,443
Related Party [Member] | Fixed Storageand Throughput Revenue [Member]
Revenue from contracts with customers	14,531	11,117
Lease revenue
Related Party [Member] | Fixed Lease Revenue [Member]
Revenue from contracts with customers
Lease revenue	24,547	19,060
Related Party [Member] | Variable Cost Recovery Revenue [Member]
Revenue from contracts with customers	3,076	4,473
Lease revenue	763	448
Related Party [Member] | Variable Throughput Revenue [Member]
Revenue from contracts with customers	421	106
Lease revenue	$ 1,106	$ 935

Note 5 - Discontinued Operati_3

Note 5 - Discontinued Operations (Details Textual) - USD ($)	Dec. 15, 2020	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 21, 2020
Asset Impairment Charges, Total					$ 2,476,000
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax, Total				(39,096,000)
Pipeline Linefill [Member]
Asset Impairment Charges, Total			$ 4,900,000
Crude Oil Trucking Services [Member]
Asset Impairment Charges, Total				1,300,000
Crude Oil Terminalling Services [Member] | Pipeline Linefill [Member]
Asset Impairment Charges, Total			2,300,000
Crude Oil Pipeline Services [Member] | Pipeline Linefill [Member]
Asset Impairment Charges, Total			$ 2,600,000
Crude Oil Pipeline Services [Member] | Discontinued Operations, Held-for-sale [Member]
Proceeds from Divestiture of Businesses, Held in Escrow						$ 1,500
Expected Exit and Disposal Costs						$ 1,600,000
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax, Total				(37,249,000)
Crude Oil Trucking Services [Member] | Discontinued Operations, Held-for-sale [Member]
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax, Total	$ (1,100,000)	$ (700,000)		$ (1,847,000)

Note 5 - Discontinued Operati_4

Note 5 - Discontinued Operations - Financial Information (Details) - USD ($)	Dec. 15, 2020	Dec. 31, 2020	Dec. 31, 2020	Dec. 31, 2019
ASSETS
Accounts receivable, net		$ 13,959,000	$ 13,959,000	$ 21,029,000
Other current assets				6,330,000
Plant, property, and equipment		76,837,000	76,837,000	125,402,000
Operating lease assets				858,000
Other noncurrent assets				4,906,000
Total assets of discontinued operations		96,945,000	96,945,000	158,525,000
Other assets		6,149,000	6,149,000
LIABILITIES
Current liabilities		17,248,000	17,248,000	23,743,000
Current operating lease liability				535,000
Noncurrent operating lease liability				311,000
Other liabilities				820,000
Total liabilities of discontinued operations		17,248,000	17,248,000	25,409,000
Operating expense			34,374,000	41,863,000
General and administrative expense			669,000	706,000
(Gain) loss on sale of assets			(1,190,000)	(584,000)
Interest expense			5,319,000	8,528,000
Income (loss) before income taxes			(42,174,000)	(3,568,000)
Provision for income taxes			1,000	19,000
Net income (loss) from discontinued operations			(42,175,000)	(3,587,000)
Asset impairment expense			6,417,000
Loss on disposal/classification of held for sale for discontinued operations			39,096,000
Depreciation and amortization			9,652,000	10,336,000
Capital expenditures			7,349,000	4,888,000
Intersegment Eliminations [Member]
LIABILITIES
Operating expense			5,587,000	6,486,000
Service [Member] | Intersegment Eliminations [Member]
LIABILITIES
Revenue			5,587,000	6,486,000
Third Party [Member]
LIABILITIES
Cost of product sales			52,624,000	83,319,000
Third Party [Member] | Service [Member]
LIABILITIES
Revenue			23,838,000	33,109,000
Third Party [Member] | Product [Member]
LIABILITIES
Revenue			157,544,000	231,051,000
Related Party [Member]
LIABILITIES
Cost of product sales			86,247,000	134,162,000
Related Party [Member] | Service [Member]
LIABILITIES
Revenue				266,000
Crude Oil Trucking Services [Member] | Discontinued Operations, Held-for-sale [Member]
ASSETS
Accounts receivable, net		81,000	81,000	822,000
Other current assets				256,000
Plant, property, and equipment		442,000	442,000	3,120,000
Operating lease assets				745,000
Other noncurrent assets				211,000
Total assets of discontinued operations		854,000	854,000	5,154,000
Other assets		331,000	331,000
LIABILITIES
Current liabilities		1,017,000	1,017,000	1,238,000
Current operating lease liability				520,000
Noncurrent operating lease liability				223,000
Other liabilities				122,000
Total liabilities of discontinued operations		1,017,000	1,017,000	2,103,000
Operating expense			12,386,000	16,763,000
General and administrative expense			284,000	267,000
(Gain) loss on sale of assets			(11,000)	(1,497,000)
Interest expense			11,000	11,000
Income (loss) before income taxes			(4,967,000)	1,072,000
Provision for income taxes			3,000	15,000
Net income (loss) from discontinued operations			(4,970,000)	1,057,000
Asset impairment expense			1,330,000
Loss on disposal/classification of held for sale for discontinued operations	$ 1,100,000	700,000	1,847,000
Depreciation and amortization			719,000	538,000
Capital expenditures			2,074,000	2,168,000
Crude Oil Trucking Services [Member] | Discontinued Operations, Held-for-sale [Member] | Intersegment Eliminations [Member]
LIABILITIES
Operating expense
Crude Oil Trucking Services [Member] | Discontinued Operations, Held-for-sale [Member] | Service [Member] | Intersegment Eliminations [Member]
LIABILITIES
Revenue			5,587,000	5,555,000
Crude Oil Trucking Services [Member] | Discontinued Operations, Held-for-sale [Member] | Third Party [Member]
LIABILITIES
Cost of product sales
Crude Oil Trucking Services [Member] | Discontinued Operations, Held-for-sale [Member] | Third Party [Member] | Service [Member]
LIABILITIES
Revenue			5,293,000	11,061,000
Crude Oil Trucking Services [Member] | Discontinued Operations, Held-for-sale [Member] | Third Party [Member] | Product [Member]
LIABILITIES
Revenue
Crude Oil Trucking Services [Member] | Discontinued Operations, Held-for-sale [Member] | Related Party [Member]
LIABILITIES
Cost of product sales
Crude Oil Trucking Services [Member] | Discontinued Operations, Held-for-sale [Member] | Related Party [Member] | Service [Member]
LIABILITIES
Revenue
Crude Oil Pipeline Services [Member] | Discontinued Operations, Held-for-sale [Member]
ASSETS
Accounts receivable, net		13,711,000	13,711,000	20,041,000
Other current assets				2,699,000
Plant, property, and equipment		23,541,000	23,541,000	62,590,000
Operating lease assets				113,000
Other noncurrent assets				2,657,000
Total assets of discontinued operations		37,799,000	37,799,000	88,100,000
Other assets		547,000	547,000
LIABILITIES
Current liabilities		14,921,000	14,921,000	21,277,000
Current operating lease liability				15,000
Noncurrent operating lease liability				88,000
Other liabilities				226,000
Total liabilities of discontinued operations		14,921,000	14,921,000	21,606,000
Operating expense			13,427,000	16,088,000
General and administrative expense			385,000	438,000
(Gain) loss on sale of assets			(445,000)	836,000
Interest expense			960,000	1,598,000
Income (loss) before income taxes			(39,622,000)	(4,924,000)
Provision for income taxes			(2,000)	4,000
Net income (loss) from discontinued operations			(39,620,000)	(4,928,000)
Asset impairment expense			2,821,000
Loss on disposal/classification of held for sale for discontinued operations			37,249,000
Depreciation and amortization			4,550,000	5,332,000
Capital expenditures			4,555,000	1,846,000
Crude Oil Pipeline Services [Member] | Discontinued Operations, Held-for-sale [Member] | Intersegment Eliminations [Member]
LIABILITIES
Operating expense			5,587,000	6,486,000
Crude Oil Pipeline Services [Member] | Discontinued Operations, Held-for-sale [Member] | Service [Member] | Intersegment Eliminations [Member]
LIABILITIES
Revenue
Crude Oil Pipeline Services [Member] | Discontinued Operations, Held-for-sale [Member] | Third Party [Member]
LIABILITIES
Cost of product sales			52,624,000	83,319,000
Crude Oil Pipeline Services [Member] | Discontinued Operations, Held-for-sale [Member] | Third Party [Member] | Service [Member]
LIABILITIES
Revenue			1,689,000	6,686,000
Crude Oil Pipeline Services [Member] | Discontinued Operations, Held-for-sale [Member] | Third Party [Member] | Product [Member]
LIABILITIES
Revenue			157,544,000	231,051,000
Crude Oil Pipeline Services [Member] | Discontinued Operations, Held-for-sale [Member] | Related Party [Member]
LIABILITIES
Cost of product sales			86,247,000	134,162,000
Crude Oil Pipeline Services [Member] | Discontinued Operations, Held-for-sale [Member] | Related Party [Member] | Service [Member]
LIABILITIES
Revenue				266,000
Crude Oil Terminalling Services [Member] | Discontinued Operations, Held-for-sale [Member]
ASSETS
Accounts receivable, net		167,000	167,000	166,000
Other current assets				3,375,000
Plant, property, and equipment		52,854,000	52,854,000	59,692,000
Operating lease assets
Other noncurrent assets				2,038,000
Total assets of discontinued operations		58,292,000	58,292,000	65,271,000
Other assets		5,271,000	5,271,000
LIABILITIES
Current liabilities		1,310,000	1,310,000	1,228,000
Current operating lease liability
Noncurrent operating lease liability
Other liabilities				472,000
Total liabilities of discontinued operations		$ 1,310,000	1,310,000	1,700,000
Operating expense			8,561,000	9,012,000
General and administrative expense				1,000
(Gain) loss on sale of assets			(734,000)	77,000
Interest expense			4,348,000	6,919,000
Income (loss) before income taxes			2,415,000	284,000
Provision for income taxes
Net income (loss) from discontinued operations			2,415,000	284,000
Asset impairment expense			2,266,000
Loss on disposal/classification of held for sale for discontinued operations
Depreciation and amortization			4,383,000	4,466,000
Capital expenditures			720,000	874,000
Crude Oil Terminalling Services [Member] | Discontinued Operations, Held-for-sale [Member] | Intersegment Eliminations [Member]
LIABILITIES
Operating expense
Crude Oil Terminalling Services [Member] | Discontinued Operations, Held-for-sale [Member] | Service [Member] | Intersegment Eliminations [Member]
LIABILITIES
Revenue				931,000
Crude Oil Terminalling Services [Member] | Discontinued Operations, Held-for-sale [Member] | Third Party [Member]
LIABILITIES
Cost of product sales
Crude Oil Terminalling Services [Member] | Discontinued Operations, Held-for-sale [Member] | Third Party [Member] | Service [Member]
LIABILITIES
Revenue			16,856,000	15,362,000
Crude Oil Terminalling Services [Member] | Discontinued Operations, Held-for-sale [Member] | Third Party [Member] | Product [Member]
LIABILITIES
Revenue
Crude Oil Terminalling Services [Member] | Discontinued Operations, Held-for-sale [Member] | Related Party [Member]
LIABILITIES
Cost of product sales
Crude Oil Terminalling Services [Member] | Discontinued Operations, Held-for-sale [Member] | Related Party [Member] | Service [Member]
LIABILITIES
Revenue

Note 6 - Property, Plant and _3

Note 6 - Property, Plant and Equipment (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Property Subject to or Available for Operating Lease, Gross	$ 295.4
Property Subject to or Available for Operating Lease, Accumulated Depreciation	191
Depreciation, Total	$ 11	$ 12.8

Note 6 - Property, Plant and _4

Note 6 - Property, Plant and Equipment - Property, Plant and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Property, plant and equipment, gross	$ 302,270	$ 293,218
Accumulated depreciation	(197,561)	(185,845)
Property, plant and equipment, net	104,709	107,373
Land [Member]
Property, plant and equipment, gross	21,826	21,876
Land Improvements [Member]
Property, plant and equipment, gross	$ 5,024	5,139
Land Improvements [Member] | Minimum [Member]
Estimated Useful Lives (Year)	10 years
Land Improvements [Member] | Maximum [Member]
Estimated Useful Lives (Year)	20 years
Storage and Terminal Facilities [Member]
Property, plant and equipment, gross	$ 249,977	241,733
Storage and Terminal Facilities [Member] | Minimum [Member]
Estimated Useful Lives (Year)	10 years
Storage and Terminal Facilities [Member] | Maximum [Member]
Estimated Useful Lives (Year)	35 years
Office Equipment [Member]
Property, plant and equipment, gross	$ 23,278	21,099
Office Equipment [Member] | Minimum [Member]
Estimated Useful Lives (Year)	3 years
Office Equipment [Member] | Maximum [Member]
Estimated Useful Lives (Year)	30 years
Construction in Progress [Member]
Property, plant and equipment, gross	$ 2,165	$ 3,371

Note 7 - Intangible Assets, N_3

Note 7 - Intangible Assets, Net (Details Textual) - USD ($) $ in Millions	1 Months Ended		12 Months Ended
	Mar. 31, 2018	Feb. 29, 2016	Dec. 31, 2020	Dec. 31, 2019
Amortization of Intangible Assets, Total			$ 2.4	$ 2.4
Customer Relationships [Member] | Minimum [Member]
Finite-Lived Intangible Asset, Useful Life (Year)			5 years
Customer Relationships [Member] | Maximum [Member]
Finite-Lived Intangible Asset, Useful Life (Year)			10 years
Asphalt Terminalling Services [Member] | Customer Relationships [Member]
Finite-lived Intangible Assets Acquired	$ 7.6	$ 8.4

Note 7 - Intangible Assets, N_4

Note 7 - Intangible Assets, Net - Net of Accumulated Depreciation (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Customer relationships	$ 16,022	$ 16,022
Accumulated amortization of intangible assets	(8,491)	(6,109)
Total estimated aggregate amortization expense	$ 7,531	$ 9,913

Note 7 - Intangible Assets, N_5

Note 7 - Intangible Assets, Net - Net Estimated Aggregate Amortization Expense On Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
December 31, 2021	$ 2,382
December 31, 2022	2,382
December 31, 2023	958
December 31, 2024	958
December 31, 2025	851
Thereafter
Total estimated aggregate amortization expense	$ 7,531	$ 9,913

Note 8 - Debt (Details Textual)

Note 8 - Debt (Details Textual) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Mar. 04, 2021USD ($)	Jan. 08, 2021USD ($)	Jun. 28, 2018USD ($)	Jun. 27, 2018USD ($)
Amortization of Debt Issuance Costs	$ 1,004	$ 1,005
Credit Agreement [Member]
Line of Credit Facility, Maximum Borrowing Capacity Including Additional Lenders	600,000
Debt Instrument Covenant, Issued Qualified Senior Notes	$ 200,000
Debt Instrument Covenant, Prior to Issuance of Qualified Senior Notes, Maximum Permitted Consolidated Total Leverage Ratio	4.75
Debt Instrument Covenant, Prior to Issuance of Qualified Senior Notes, Based on Occurence of Acquisition, Maximum Permitted Consolidated Total Leverage Ratio	5.25
Debt Instrument Covenant, Specified Acquisition, Aggregate Consideration	$ 15,000
Debt Instrument Covenant, Prior to Issuance of Qualified Senior Notes, Maximum Permitted Consolidated Total Leverage Ratio	5
Debt Instrument Covenant, After Issuance of Qualified Senior Notes, Based on Occurence of Acquisition, Maximum Permitted Consolidated Total Leverage Ratio	5.5
Debt Instrument Covenant, Maximum Permitted Consolidated Senior Secured Leverage Ratio	3.5
Debt Instrument Covenant, Minimum Permitted Consolidated Interest Coverage Ratio	2.5
Consolidated Total Leverage Ratio	3.83
Consolidated Interest Coverage Ratio	6.66
Long-term Debt, Total	$ 252,600
Debt Instrument Covenant, Default, Percentage of General Partner Interest Cease	100.00%
Amortization of Debt Issuance Costs	$ 1,000	$ 1,000
Debt Instrument, Interest Rate During Period	3.97%	6.00%
Interest Expense, Long-term Debt, Total	$ 5,600	$ 7,400
Credit Agreement [Member] | Ergon [Member]
Debt Instrument Covenant, Default, Percentage of Membership Interest Cease	50.00%
Credit Agreement [Member] | Federal Funds Effective Rate [Member]
Debt Instrument, Basis Spread on Variable Rate	0.50%
Credit Agreement [Member] | Eurodollar Rate [Member]
Debt Instrument, Basis Spread on Variable Rate	1.00%
Credit Agreement [Member] | Minimum [Member]
Line of Credit Facility, Commitment Fee Percentage	0.375%
Credit Agreement [Member] | Minimum [Member] | Applicable Margin Based on Eurodollar Rate [Member]
Debt Instrument, Basis Spread on Variable Rate	2.00%
Credit Agreement [Member] | Minimum [Member] | Applicable Margin on Based on Alternate Base Rate [Member]
Debt Instrument, Basis Spread on Variable Rate	1.00%
Credit Agreement [Member] | Maximum [Member]
Line of Credit Facility, Commitment Fee Percentage	0.50%
Credit Agreement [Member] | Maximum [Member] | Applicable Margin Based on Eurodollar Rate [Member]
Debt Instrument, Basis Spread on Variable Rate	3.25%
Credit Agreement [Member] | Maximum [Member] | Applicable Margin on Based on Alternate Base Rate [Member]
Debt Instrument, Basis Spread on Variable Rate	2.25%
Credit Agreement [Member] | Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity					$ 400,000	$ 450,000
Credit Agreement [Member] | Revolving Credit Facility [Member] | Subsequent Event [Member]
Line of Credit Facility, Maximum Borrowing Capacity				$ 350,000
Long-term Line of Credit, Total			$ 99,600
Letters of Credit Outstanding, Amount			1,700
Line of Credit Facility, Remaining Borrowing Capacity			$ 248,700

Note 9 - Net Income Per Limit_3

Note 9 - Net Income Per Limited Partner Unit - Earning Per Unit (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Net income(loss)	$ (13,480)	$ 18,412
General partner interest in net income (loss)	(213)	337
Preferred interest in net income	25,115	25,115
Net loss available to limited partners	$ (38,382)	$ (7,040)
Common units (in shares)	41,104	40,755
Restricted and phantom units (in shares)	1,285	1,023
Total units (in shares)	42,389	41,778
Basic and diluted net loss from discontinued operations per common unit (in dollars per share)	$ (0.98)	$ (0.08)
Basic and diluted net income(loss) from continuing operations per common unit (in dollars per share)	0.07	(0.09)
Basic and diluted net loss per common unit (in dollars per share)	$ (0.91)	$ (0.17)

Note 10 - Partners' Capital (_3

Note 10 - Partners' Capital (Deficit) and Distributions (Details Textual) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2020USD ($)$ / shares
Preferred Unit, Cash Distribution [Member]
Distribution Made to Limited Partner, Distributions Declared, Per Unit (in dollars per share) | $ / shares	$ 0.17875
Distribution Made to Limited Partner, Declaration Date	Jan. 26, 2021
Distribution Made to Limited Partner, Distribution Date	Feb. 12, 2021
Distribution Made to Limited Partner, Date of Record	Feb. 5, 2021
Distribution Made to Limited Partner, Cash Distributions Declared | $	$ 6.4
Common Unit, Cash Distribution [Member]
Distribution Made to Limited Partner, Distributions Declared, Per Unit (in dollars per share) | $ / shares	$ 0.04
Distribution Made to Limited Partner, Declaration Date	Jan. 26, 2021
Distribution Made to Limited Partner, Distribution Date	Feb. 12, 2021
Distribution Made to Limited Partner, Date of Record	Feb. 5, 2021
Distribution Made to Limited Partner, Cash Distributions Declared | $	$ 1.7
Preferred Partner [Member] | First Tier Cash Distribution [Member]
Partners' Capital Account, Distributions, Allocation Percentage	98.40%
Preferred Partner [Member] | Second Tier Cash Distribution [Member]
Partners' Capital Account, Distributions, Allocation Percentage	98.40%
Preferred Partner [Member] | Quarterly Distributions [Member]
Distribution Made to Limited Partner, Distributions Declared, Per Unit (in dollars per share) | $ / shares	$ 0.17875
Preferred Partner [Member] | Preferred Unit, Cash Distribution [Member]
Distribution Made to Limited Partner, Cash Distributions Declared | $	$ 6.3
General Partner [Member] | First Tier Cash Distribution [Member]
Partners' Capital Account, Distributions, Allocation Percentage	1.60%
General Partner [Member] | Second Tier Cash Distribution [Member]
Partners' Capital Account, Distributions, Allocation Percentage	1.60%
General Partner [Member] | Third Tier Cash Distribution [Member]
Partners' Capital Account, Distributions, Allocation Percentage	1.60%
General Partner [Member] | First Tier Incentive Distribution Rights Percentage Increase [Member]
Incentive Distribution Rights, Percentage Increase	13.00%
General Partner [Member] | Second Tier Incentive Distribution Rights Percentage Increase [Member]
Incentive Distribution Rights, Percentage Increase	23.00%
General Partner [Member] | Third Tier Incentive Distribution Rights Percentage Increase [Member]
Incentive Distribution Rights, Percentage Increase	48.00%
General Partner [Member] | First Tier Target Distribution [Member]
Partners' Capital Account, Distributions, Allocation Percentage	1.60%
General Partner [Member] | Second Tier Target Distribution [Member]
Partners' Capital Account, Distributions, Allocation Percentage	14.60%
General Partner [Member] | Third Tier Target Distribution [Member]
Partners' Capital Account, Distributions, Allocation Percentage	24.60%
General Partner [Member] | Fourth Tier Target Distribution [Member]
Partners' Capital Account, Distributions, Allocation Percentage	49.60%
General Partner [Member] | Preferred Unit, Cash Distribution [Member]
Distribution Made to Limited Partner, Cash Distributions Declared | $	$ 0.1
General Partner [Member] | Common Unit, Cash Distribution [Member]
Distribution Made to Limited Partner, Cash Distributions Declared | $	$ 0.1
Limited Partner [Member]
Minimum Distribution, Per Common Unit Per Quarter (in dollars per share) | $ / shares	$ 0.11
Limited Partner [Member] | Third Tier Cash Distribution [Member]
Partners' Capital Account, Distributions, Allocation Percentage	98.40%
Limited Partner [Member] | First Tier Target Distribution [Member]
Partners' Capital Account, Distributions, Allocation Percentage	98.40%
Limited Partner [Member] | Second Tier Target Distribution [Member]
Partners' Capital Account, Distributions, Allocation Percentage	85.40%
Limited Partner [Member] | Third Tier Target Distribution [Member]
Partners' Capital Account, Distributions, Allocation Percentage	75.40%
Limited Partner [Member] | Fourth Tier Target Distribution [Member]
Partners' Capital Account, Distributions, Allocation Percentage	50.40%
Limited and General Partners [Member] | First Tier Target Distribution [Member]
Target Quarterly Distribution (in dollars per share) | $ / shares	$ 0.1265
Limited and General Partners [Member] | Second Tier Target Distribution [Member]
Target Quarterly Distribution (in dollars per share) | $ / shares	0.1375
Limited and General Partners [Member] | Third Tier Target Distribution [Member]
Target Quarterly Distribution (in dollars per share) | $ / shares	$ 0.1825
Common Unitholder [Member] | Common Unit, Cash Distribution [Member]
Distribution Made to Limited Partner, Cash Distributions Declared | $	$ 1.7
Holders of Phantom and Restricted Units [Member] | Common Unit, Cash Distribution [Member]
Distribution Made to Limited Partner, Cash Distributions Declared | $	$ 0.1

Note 10 - Partners' Capital (_4

Note 10 - Partners' Capital (Deficit) and Distributions - Distributions (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Preferred Unit, Cash Distribution [Member]
Distributions	$ 25,519	$ 25,521
Preferred Unit, Cash Distribution [Member] | Preferred Partner [Member]
Distributions	25,115	25,115
Preferred Unit, Cash Distribution [Member] | General Partner [Member]
Distributions	404	406
Common Unit, Cash Distribution [Member]
Distributions	6,887	8,468
Common Unit, Cash Distribution [Member] | General Partner [Member]
Distributions	109	135
Common Unit, Cash Distribution [Member] | Limited Partner [Member]
Distributions	6,576	8,150
Common Unit, Cash Distribution [Member] | Phantom and Restricted Units Holders [Member]
Distributions	$ 202	$ 183

Note 11 - Major Customers and_2

Note 11 - Major Customers and Concentration of Credit Risk (Details Textual) - Customer Concentration Risk [Member] - Revenue Benchmark [Member]	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Ergon [Member]
Concentration Risk, Percentage	40.00%	34.00%
One Third Party Customer [Member]
Concentration Risk, Percentage	12.00%	12.00%
Two Other Third Party Customer [Member]
Concentration Risk, Percentage	15.00%	16.00%

Note 12 - Related-party Trans_2

Note 12 - Related-party Transactions (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Due from Related Parties, Current, Total	$ 507	$ 1,110
Other than Temporary Impairment Losses, Investments, Total		2,202
Cimarron Express [Member]
Other than Temporary Impairment Losses, Investments, Total		2,200
Ergon [Member]
Revenue from Related Parties	44,400	36,100
Due from Related Parties, Current, Total	500	1,100
Ergon [Member] | Cimarron Express [Member]
Due to Related Parties, Contingent Liability		12,200
Ergon [Member] | Crude Oil Purchase Agreement [Member]
Related Party Transaction, Purchases from Related Party	92,100	133,500
Accounts Payable, Related Parties	8,700
Ergon [Member] | Ergon 2016 Storage and Handling Agreement [Member]
Revenue from Related Parties	12,000	20,000
Ergon [Member] | Ergon Fontana and Las Vegas Storage Throughput and Handling Agreement [Member]
Revenue from Related Parties	3,500	6,000
Ergon [Member] | Ergon Lessee Operated Facility Lease Agreement [Member]
Operating Lease, Lease Income, Total	4,400	$ 8,300
Ergon [Member] | Ergon 2020 Master Storage, Throughput and Handling Agreement [Member]
Operating Lease, Lease Income, Total	16,800
Ergon [Member] | Ergon Operating and Maintenance Agreement [Member]
Related Party Transaction, Expenses from Transactions with Related Party	$ 7,700

Note 13 - Long-term Incentive_3

Note 13 - Long-term Incentive Plan (Details Textual) - Long-Term Incentive Plan [Member] - USD ($) $ in Millions	Jan. 01, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)		8,100,000
Share-based Payment Arrangement, Expense		$ 0.8	$ 0.9
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)		3 years
Restricted Stock [Member] | Share-based Payment Arrangement, Tranche Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage		33.33%
Restricted Stock [Member] | Share-based Payment Arrangement, Tranche One [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage		33.33%
Restricted Stock [Member] | Share-based Payment Arrangement, Tranche Three [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage		33.33%
Phantom and Restricted Units Holders [Member]
Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount			$ 0.5
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period (in shares)		322,608
Phantom and Restricted Units Holders [Member] | Subsequent Event [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period (in shares)	279,581

Note 13 - Long-term Incentive_4

Note 13 - Long-term Incentive Plan - Information on Outstanding Grants Made to Directors Under the LTIP (Details) - Long-Term Incentive Plan [Member] - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended							12 Months Ended
	Oct. 31, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019		Mar. 31, 2018		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Restricted Stock [Member] | Director [Member]
Granted, number of units (in shares)								7,500	7,500	23,436
Granted, weighted average grant date fair value (in dollars per share)								$ 2.06	$ 1.07	$ 1.20
Grant Date Total Fair Value								$ 15	$ 8	$ 28
Phantom Share Units (PSUs) [Member] | Employees [Member]
Granted, number of units (in shares)	16,339	600,396	46,168	524,997		396,536
Granted, weighted average grant date fair value (in dollars per share)	$ 1.53	$ 0.90	$ 1.08	$ 1.14	[1]	$ 4.77	[1]
Grant Date Total Fair Value	$ 25	$ 540	$ 50	$ 598		$ 1,891
[1]	Fair value is the closing market price on the grant date of the awards.

Note 13 - Long-term Incentive_5

Note 13 - Long-term Incentive Plan - Activity Pertaining to Phantom and Restricted Common Stock Unit Awards (Details) - Long-Term Incentive Plan [Member] - Phantom and Restricted Units Holders [Member]	12 Months Ended
	Dec. 31, 2020$ / sharesshares
Nonvested, number of units, beginning balance (in shares) | shares	1,068,343
Nonvested, weighted average grant date fair value, beginning balance (in dollars per share) | $ / shares	$ 3.42
Granted, number of units (in shares) | shares	624,235
Granted, weighted average grant date fair value (in dollars per share) | $ / shares	$ 0.93
Vested, number of units (in shares) | shares	322,608
Vested, weighted average grant date fair value (in dollars per share) | $ / shares	$ 5.43
Forfeited, number of units (in shares) | shares	19,604
Forfeited, weighted average grant date fair value (in dollars per share) | $ / shares	$ 1.90
Nonvested, number of units, ending balance (in shares) | shares	1,350,366
Nonvested, weighted average grant date fair value, ending balance (in dollars per share) | $ / shares	$ 1.81

Note 14 - Employee Benefit Pl_2

Note 14 - Employee Benefit Plan (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Partnership's Employee Unit Purchase Plan [Member]
Employee Stock Ownership Plan (ESOP), Shares in ESOP, Total (in shares)	1,000,000
Partnership's 401(k) Plan [Member]
Defined Contribution Plan, Employer Discretionary Contribution Amount	$ 0.6	$ 0.6
Defined Contribution Plan, Employer Discretionary Profit Sharing Contribution Amount	$ 0.6	$ 0.4

Note 18 - Leases - Maturity of

Note 18 - Leases - Maturity of Lease Liabilities (Details) $ in Thousands	Dec. 31, 2020USD ($)
Twelve months ending December 31, 2021	$ 1,913
Twelve months ending December 31, 2022	1,502
Twelve months ending December 31, 2023	1,428
Twelve months ending December 31, 2024	798
Twelve months ending December 31, 2025	704
Thereafter, operating leases	5,386
Total, operating leases	11,731
Less: Interest, operating leases	3,067
Present value of operating lease liabilities	$ 8,664

Note 18 - Leases - Total Lease

Note 18 - Leases - Total Lease Cost by Type (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019
Operating lease cost(1)	[1]	$ 1,953	$ 1,916
Short-term lease cost		172	247
Net lease cost		2,125	2,163
Payments on operating leases		1,400	1,349
Leased assets obtained in exchange for new operating lease liabilities		$ 119	$ 1,714
Weighted-average remaining operating lease term (years) (Year)		10 years 146 days
Weighted-average discount rate		5.87%
[1]	Includes variable lease costs, which are immaterial.

Note 21 - Subsequent Events (De

Note 21 - Subsequent Events (Details Textual) - USD ($) $ in Thousands	Mar. 01, 2021	Dec. 31, 2020	Dec. 31, 2019	Jan. 08, 2021	Jun. 28, 2018	Jun. 27, 2018
Repayments of Lines of Credit		$ 231,000	$ 301,000
Credit Agreement [Member] | Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity					$ 400,000	$ 450,000
Subsequent Event [Member] | Credit Agreement [Member] | Revolving Credit Facility [Member]
Repayments of Lines of Credit	$ 164,000
Line of Credit Facility, Maximum Borrowing Capacity				$ 350,000