Hallador Energy (HNRG) 10-Q 3 Aug 20 2020 Q2 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	6 Months Ended
	Jun. 30, 2020	Jul. 31, 2020
Document Information [Line Items]
Entity Central Index Key	0000788965
Entity Registrant Name	HALLADOR ENERGY CO
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2020
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2020
Document Transition Report	false
Entity File Number	001-34743
Entity Incorporation, State or Country Code	CO
Entity Tax Identification Number	84-1014610
Entity Address, Address Line One	1183 East Canvasback Drive
Entity Address, City or Town	Terre Haute
Entity Address, State or Province	IN
Entity Address, Postal Zip Code	47802
City Area Code	812
Local Phone Number	299.2800
Title of 12(b) Security	Common Shares, $.01 par value
Trading Symbol	HNRG
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		30,465,665

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 7,375	$ 8,799
Restricted cash (Note 12)	4,508	4,512
Certificates of deposit	0	245
Accounts receivable	13,494	25,580
Prepaid income taxes	975	1,562
Inventory (Note 3)	42,012	28,297
Parts and supplies, net of allowance of $274	9,568	11,775
Prepaid expenses	2,682	1,678
Total current assets	80,614	82,448
Property, plant and equipment, at cost:
Land and mineral rights	114,974	114,722
Buildings and equipment	357,912	351,614
Mine development	87,542	84,160
Total property, plant and equipment, at cost	560,428	550,496
Less - accumulated DD&A	(240,964)	(220,780)
Total property, plant and equipment, net	319,464	329,716
Investment in Sunrise Energy (Note 15)	3,412	3,139
Other long-term assets (Note 4)	8,169	10,324
Total Assets	411,659	425,627
Current liabilities:
Current portion of bank debt, net (Note 5)	34,311	33,044
Current portion of PPP note (Note 5)	4,448	0
Accounts payable and accrued liabilities (Note 6)	32,801	31,800
Total current liabilities	71,560	64,844
Long-term liabilities:
Bank debt, net (Note 5)	119,463	140,594
PPP note (Note 5)	5,552	0
Deferred income taxes	2,614	4,884
Asset retirement obligations (ARO)	16,262	15,694
Other	4,701	4,081
Total long-term liabilities	148,592	165,253
Total liabilities	220,152	230,097
Redeemable noncontrolling interests (Note 2)	4,000	4,000
Stockholders' equity:
Preferred stock, $.10 par value, 10,000 shares authorized; none issued	0	0
Common stock, $.01 par value, 100,000 shares authorized; 30,465 and 30,420 outstanding, respectively	305	304
Additional paid-in capital	102,833	102,215
Retained earnings	84,369	89,011
Total stockholders’ equity	187,507	191,530
Total liabilities, redeemable noncontrolling interests, and stockholders’ equity	$ 411,659	$ 425,627

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) shares in Thousands, $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Parts and supplies, allowance	$ 274	$ 274
Preferred stock, par value (in dollars per share)	$ 0.10	$ 0.10
Preferred stock, shares authorized (in shares)	10,000	10,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	100,000	100,000
Common stock, shares outstanding (in shares)	30,465	30,420

Condensed Consolidated Statemen

Condensed Consolidated Statements of Income (Loss) (Unaudited) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
REVENUE:
Coal sales		$ 50,473	$ 71,113	$ 112,405	$ 156,348
Other operating income (Note 8)		1,608	1,197	2,214	5,275
Total revenue		52,081	72,310	114,619	161,623
COSTS AND EXPENSES:
Operating costs and expenses		36,165	54,001	84,634	116,420
DD&A		10,217	12,096	20,844	23,834
ARO accretion		343	314	676	623
Exploration costs		208	208	461	488
SG&A		2,678	3,475	5,656	6,459
Interest (1)	[1]	2,834	5,369	8,548	9,988
Total costs and expenses		52,445	75,463	120,819	157,812
INCOME (LOSS) BEFORE INCOME TAXES		(364)	(3,153)	(6,200)	3,811
INCOME TAX EXPENSE (BENEFIT) (NOTE 9):
Current		0	78	(524)	(151)
Deferred		(618)	113	(2,270)	306
Total income tax expense (benefit)		(618)	191	(2,794)	155
NET INCOME (LOSS)		$ 254	$ (3,344)	$ (3,406)	$ 3,656
NET INCOME (LOSS) PER SHARE (NOTE 13):
Basic and diluted (in dollars per share)		$ 0.01	$ (0.11)	$ (0.11)	$ 0.12
WEIGHTED AVERAGE SHARES OUTSTANDING
Basic and diluted (in shares)		30,423	30,245	30,421	30,245
(1) Bank interest		$ 2,842	$ 2,933	$ 5,496	$ 5,945
Change in interest rate swap valuation		(617)	1,843	1,976	2,856
Amortization of debt issuance costs		609	542	1,076	1,085
Other		0	51	0	102
Total non-cash interest		(8)	2,436	3,052	4,043
Total interest	[1]	$ 2,834	$ 5,369	$ 8,548	$ 9,988
[1]	(1) Bank interest 2,654 3,012 2,654 3,012 Non-cash interest: Change in interest rate swap valuation 2,593 1,013 2,593 1,013 Amortization of debt issuance costs 467 543 467 543 Other — 51 — 51 Total non-cash interest 3,060 1,607 3,060 1,607 Total interest $ 5,714 $ 4,619 $ 5,714 $ 4,619

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
OPERATING ACTIVITIES:
Net income (loss)	$ (3,406)	$ 3,656
Deferred income taxes	(2,270)	306
Equity (income) loss – Sunrise Energy	(1,286)	166
DD&A	20,844	23,834
Gain on sale of assets	0	(100)
Unrealized gain on marketable securities	(14)	(348)
Gain on sale of royalty interests in oil properties	0	(2,949)
Amortization and write off of deferred financing costs	1,076	1,085
Accretion of ARO	676	623
Stock-based compensation	636	1,012
Change in current assets and liabilities:
Accounts receivable	12,094	(1,811)
Inventory	(13,715)	(10,416)
Parts and supplies	2,207	(1,889)
Prepaid income taxes	586	1,418
Prepaid expenses	(1,004)	7,267
Accounts payable and accrued liabilities	(6,035)	8,386
Other	3,896	(9,385)
Cash provided by operating activities	17,174	23,711
INVESTING ACTIVITIES:
Distribution from investment in Sunrise Energy	1,012	0
Capital expenditures	(10,032)	(18,293)
Proceeds from sale of equipment	56	129
Proceeds from sale of royalty interests in oil properties	0	2,949
Proceeds from sale of marketable securities	2,310	0
Proceeds from maturities of certificates of deposit	245	245
Cash used in investing activities	(6,409)	(14,970)
FINANCING ACTIVITIES:
Payments on bank debt	(26,287)	(27,363)
Borrowings of bank debt	7,250	12,000
Proceeds from PPP loan	10,000	0
Debt issuance costs	(1,903)	0
Taxes paid on vesting of RSUs	(17)	(7)
Dividends	(1,236)	(2,483)
Cash used in financing activities	(12,193)	(17,853)
Decrease in cash, cash equivalents, and restricted cash	(1,428)	(9,112)
Cash, cash equivalents, and restricted cash, beginning of period	13,311	20,094
Cash, cash equivalents, and restricted cash, end of period	11,883	10,982
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH CONSIST OF THE FOLLOWING:
Cash and cash equivalents	7,375	6,406
Restricted cash	4,508	4,576
Cash, cash equivalents, and restricted cash, end of period	11,883	10,982
SUPPLEMENTAL CASH FLOW INFORMATION:
Cash paid for interest	5,571	6,089
Cash received from income taxes	1,111	1,569
SUPPLEMENTAL NON-CASH FLOW INFORMATION:
Capital expenditures included in accounts payable and prepaid expense	1,527	5,544
Right-of-use assets acquired by operating lease	0	942
Interest Rate Swap [Member]
OPERATING ACTIVITIES:
Change in fair value of derivative	1,976	2,856
Fuel Hedge [Member]
OPERATING ACTIVITIES:
Change in fair value of derivative	$ 913	$ 0

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Dec. 31, 2018	30,245
Balance at Dec. 31, 2018	$ 302	$ 100,742	$ 153,830	$ 254,874
Stock-based compensation	$ 0	1,012	0	1,012
Stock issued on vesting of RSUs (in shares)	4
Stock issued on vesting of RSUs	$ 0	0	0	0
Taxes paid on vesting of RSUs (in shares)	(2)
Taxes paid on vesting of RSUs	$ 0	(7)	0	(7)
Dividends	0	0	(2,483)	(2,483)
Net income (loss)	$ 0	0	3,656	3,656
Balance (in shares) at Jun. 30, 2019	30,247
Balance at Jun. 30, 2019	$ 302	101,747	155,003	257,052
Balance (in shares) at Mar. 31, 2019	30,245
Balance at Mar. 31, 2019	$ 302	101,236	159,589	261,127
Stock-based compensation	$ 0	518	0	518
Stock issued on vesting of RSUs (in shares)	4
Stock issued on vesting of RSUs	$ 0	0	0	0
Taxes paid on vesting of RSUs (in shares)	(2)
Taxes paid on vesting of RSUs	$ 0	(7)	0	(7)
Dividends	0	0	(1,242)	(1,242)
Net income (loss)	$ 0	0	(3,344)	(3,344)
Balance (in shares) at Jun. 30, 2019	30,247
Balance at Jun. 30, 2019	$ 302	101,747	155,003	257,052
Balance (in shares) at Dec. 31, 2019	30,420
Balance at Dec. 31, 2019	$ 304	102,215	89,011	191,530
Stock-based compensation	$ 0	636	0	636
Stock issued on vesting of RSUs (in shares)	70
Stock issued on vesting of RSUs	$ 1	(1)	0	0
Taxes paid on vesting of RSUs (in shares)	(25)
Taxes paid on vesting of RSUs	$ 0	(17)	0	(17)
Dividends	0	0	(1,236)	(1,236)
Net income (loss)	$ 0	0	(3,406)	(3,406)
Balance (in shares) at Jun. 30, 2020	30,465
Balance at Jun. 30, 2020	$ 305	102,833	84,369	187,507
Balance (in shares) at Mar. 31, 2020	30,420
Balance at Mar. 31, 2020	$ 304	102,534	84,115	186,953
Stock-based compensation	$ 0	317	0	317
Stock issued on vesting of RSUs (in shares)	70
Stock issued on vesting of RSUs	$ 1	(1)	0	0
Taxes paid on vesting of RSUs (in shares)	(25)
Taxes paid on vesting of RSUs	$ 0	(17)	0	(17)
Dividends	0	0	0	0
Net income (loss)	$ 0	0	254	254
Balance (in shares) at Jun. 30, 2020	30,465
Balance at Jun. 30, 2020	$ 305	$ 102,833	$ 84,369	$ 187,507

Note 1 - General Business

Note 1 - General Business	6 Months Ended
	Jun. 30, 2020
Notes to Financial Statements
Significant Accounting Policies [Text Block]	( 1 GENERAL BUSINESS The interim financial data is unaudited; however, in our opinion, it includes all adjustments, consisting only of normal recurring adjustments necessary for a fair statement of the results for the interim periods. The condensed consolidated financial statements included herein have been prepared pursuant to the SEC’s rules and regulations; accordingly, certain information and footnote disclosures normally included in GAAP financial statements have been condensed or omitted. The results of operations and cash flows for the three six June 30, 2020 not December 31, 2020 2019 2020 Our organization and business, the accounting policies we follow, and other information are contained in the notes to our consolidated financial statements filed as part of our 2019 10 10 The condensed consolidated financial statements include the accounts of Hallador Energy Company (hereinafter known as “we, us, or our”) and its wholly-owned subsidiaries Sunrise Coal, LLC (Sunrise) and Hourglass Sands, LLC (Hourglass), and Sunrise’s wholly-owned subsidiaries. All significant intercompany accounts and transactions have been eliminated. Sunrise is engaged in the production of steam coal from mines located in western Indiana. New Accounting Standards Issued and Adopted In August 2018, 2018 13, 820 2018 13 December 15, 2019. 2018 13 January 1, 2020. 2018 13 not

Note 2 - Long-lived Asset Impai

Note 2 - Long-lived Asset Impairments	6 Months Ended
	Jun. 30, 2020
Notes to Financial Statements
Asset Impairment Charges [Text Block]	( 2 LONG-LIVED ASSET IMPAIRMENTS Long-lived assets are reviewed for impairment whenever events or changes in circumstance indicate that the carrying amount of the assets may not 19 June 30, 2020, no Carlisle Mine We recorded an impairment of $65.7 million as of December 31, 2019 Q4 2019 June 30, 2020 December 31, 2019 Subsequent to year end during late Q1 2020 Q1 2020 Q1 Q2 2020 Q2 2020 Bulldog Reserves As a result of the Carlisle Mine impairment, we determined that an impairment of the Bulldog Reserves was also necessary. With the closure of the Carlisle Mine, it became apparent that the likelihood of construction and opening of Bulldog was reduced. Based on our review, we recorded an impairment of $9.2 million as of December 31, 2019 Hourglass Sands We recorded an impairment of $2.9 million as of December 31, 2019 June 30, 2020 December 31, 2019

Note 3 - Inventory

Note 3 - Inventory	6 Months Ended
	Jun. 30, 2020
Notes to Financial Statements
Inventory Disclosure [Text Block]	( 3 INVENTORY Inventory is valued at lower of average cost or net realizable value (NRV). As of June 30, 2020 December 31, 2019

Note 4 - Other Long-term Assets

Note 4 - Other Long-term Assets	6 Months Ended
	Jun. 30, 2020
Notes to Financial Statements
Other Assets Disclosure [Text Block]	( 4 OTHER LONG-TERM ASSETS (in thousands) June 30, December 31, 2020 2019 Advanced coal royalties $ 6,303 $ 6,105 Marketable equity securities available for sale, at fair value (restricted)* — 2,296 Other 1,866 1,923 Total other assets $ 8,169 $ 10,324 * Held by Sunrise Indemnity, Inc., our wholly-owned captive insurance company.

Note 5 - Bank Debt

Note 5 - Bank Debt	6 Months Ended
	Jun. 30, 2020
Notes to Financial Statements
Debt Disclosure [Text Block]	( 5 BANK DEBT On April 15, 2020, 2020 2.0X. In the first 2020, June 30, 2020 June 30, 2020 June 30, 2020 March 2023. September 2023. Liquidity As of June 30, 2020 Fees Unamortized bank fees and other costs incurred in connection with the initial facility and subsequent amendments totaled $7.9 million as of our amendment in April 2020. June 30, 2020 December 31, 2019 April 15 Bank debt, less debt issuance costs, is presented below (in thousands): June 30, December 31, 2020 2019 Current bank debt $ 36,750 $ 34,912 Less unamortized debt issuance cost (2,439 ) (1,868 ) Net current portion $ 34,311 $ 33,044 Long-term bank debt $ 124,363 $ 145,238 Less unamortized debt issuance cost (4,900 ) (4,644 ) Net long-term portion $ 119,463 $ 140,594 Total bank debt $ 161,113 $ 180,150 Less total unamortized debt issuance cost (7,339 ) (6,512 ) Net bank debt $ 153,774 $ 173,638 Covenants The credit facility includes a Maximum Leverage Ratio (consolidated funded debt / trailing twelve twelve not Fiscal Periods Ending Ratio March 31, 2020 and June 30, 2020 4.00 to 1.00 September 30, 2020 and December 31, 2020 3.50 to 1.00 March 31, 2021 and June 30, 2021 3.25 to 1.00 September 30, 2021 and December 31, 2021 3.00 to 1.00 March 31, 2022 and each fiscal quarter thereafter 2.50 to 1.00 As of June 30, 2020 The credit facility also requires a Minimum Debt Service Coverage Ratio (consolidated adjusted EBITDA / annual debt service) calculated as of the end of each fiscal quarter for the trailing twelve 1.00 December 31, 2021, 1.00 As of June 30, 2020 Rate The interest rate on the facility ranges from LIBOR plus 2.75% to LIBOR plus 4.00%, depending on our Leverage Ratio, with a LIBOR floor of 0.50%. We entered into swap agreements to fix the LIBOR component of the interest rate at 2.92% on the declining term loan balance and on $53 million of the revolver. At June 30, 2020 Paycheck Protection Program On April 16, 2020, The interest rate on the Loan is 1.00%. seven 18 may Under the terms of the CARES Act, PPP loan recipients can apply for and be granted forgiveness for all or a portion of loan granted under the PPP. Such forgiveness will be determined, subject to limitations, based on the use of loan proceeds for payment of payroll costs and any covered payments of mortgage interest, rent, and utilities. In the event the PPP Loan, or any portion thereof, is forgiven pursuant to the PPP, the amount forgiven is applied to outstanding principal. The Company used all proceeds from the PPP Loan to maintain payroll and make utility payments. At June 30, 2020,

Note 6 - Accounts Payable and A

Note 6 - Accounts Payable and Accrued Liabilities	6 Months Ended
	Jun. 30, 2020
Notes to Financial Statements
Accounts Payable and Accrued Liabilities Disclosure [Text Block]	( 6 ACCOUNTS PAYABLE AND ACCRUED LIABILITIES (in thousands) June 30, December 31, 2020 2019 Accounts payable $ 15,331 $ 16,115 Accrued property taxes 2,543 2,835 Accrued payroll 2,605 2,151 Workers' compensation reserve 3,699 3,446 Group health insurance 2,100 2,500 Fair value of interest rate swaps 3,246 1,714 Other 3,277 3,039 Total accounts payable and accrued liabilities $ 32,801 $ 31,800

Note 7 - Revenue

Note 7 - Revenue	6 Months Ended
	Jun. 30, 2020
Notes to Financial Statements
Revenue from Contract with Customer [Text Block]	( 7 REVENUE Revenue from Contracts with Customers We account for a contract with a customer when the parties have approved the contract and are committed to performing their respective obligations, the rights of each party are identified, payment terms are identified, the contract has commercial substance, and collectability of consideration is probable. We recognize revenue when we satisfy a performance obligation by transferring control of a good or service to a customer. Our revenue is derived from sales to customers of coal produced at our facilities. Our customers typically purchase coal directly from our mine sites or our Princeton Loop, where the sale occurs and where title, risk of loss, and control pass to the customer at that point. Our customers arrange for and bear the costs of transporting their coal from our mines to their plants or other specified discharge points. Nearly all our customers are domestic utility companies. Our coal sales agreements with our customers are fixed-priced, or include price re-openers, fixed-volume supply contracts. Price re-opener and index provisions may Coal sales agreements will typically contain coal quality specifications, including BTUs, ash, moisture, and sulfur content among other qualities. Price adjustments are made and billed in the month the coal sale was recognized based on quality standards that are specified in the coal sales agreement and can result in either increases or decreases in the value of the coal shipped. Disaggregation of Revenue Revenue is disaggregated by primary geographic markets, as we believe this best depicts how the nature, amount, timing, and uncertainty of our revenue and cash flows are affected by economic factors. 73% and 75% of our coal revenue for the three six June 30, 2020 three six June 30, 2019 Performance Obligations A performance obligation is a promise in a contract with a customer to provide distinct goods or services. Performance obligations are the unit of account for purposes of applying the revenue recognition standard and therefore determine when and how revenue is recognized. In most of our contracts, the customer contracts with us to provide coal that meets certain quality criteria. We consider each ton of coal a separate performance obligation and allocate the transaction price based on the base price per the contract, increased or decreased for quality adjustments. We recognize revenue at a point in time, as the customer does not We have remaining performance obligations relating to fixed priced contracts of approximately $450 million, which represent the average fixed prices on our committed contracts as of June 30, 2020 2021, We have remaining performance obligations relating to contracts with price reopeners of approximately $266 million, which represents our estimate of the expected re-opener price on committed contracts as of June 30, 2020 2021 2024. The tons used to determine the remaining performance obligations are subject to adjustment in instances of force majeure and exercise of customer options to either take additional tons or reduce tonnage if such option exists in the customer contract. Contract Balances Under ASC 606, not not not June 30, 2020.

Note 8 - Other Operating Income

Note 8 - Other Operating Income	6 Months Ended
	Jun. 30, 2020
Notes to Financial Statements
Other Operating Income and Expense [Text Block]	( 8 OTHER OPERATING INCOME (in thousands) Three Months Ended June 30, Six Months Ended June 30, 2020 2019 2020 2019 Equity income (loss) - Sunrise Energy $ 1,231 $ (132 ) $ 1,286 $ (166 ) Government imposition reimbursements 100 150 200 300 Gain on sale of royalty interests in oil properties — 449 — 2,949 Coal storage 84 — 84 — Miscellaneous 193 730 644 2,192 $ 1,608 $ 1,197 $ 2,214 $ 5,275

Note 9 - Income Taxes

Note 9 - Income Taxes	6 Months Ended
	Jun. 30, 2020
Notes to Financial Statements
Income Tax Disclosure [Text Block]	( 9 INCOME TAXES For the three six June 30, 2020 not 19. six June 30, 2020 2019 ~45% ~4%, not On March 27, 2020, 19 80% 2018, 2019 2020, 50% 30% January 1, 2019 2020 2020 2017.

Note 10 - Stock Compensation Pl

Note 10 - Stock Compensation Plans	6 Months Ended
	Jun. 30, 2020
Notes to Financial Statements
Share-based Payment Arrangement [Text Block]	( 10 STOCK COMPENSATION PLANS Non-vested grants at December 31, 2019 488,500 Granted – share price on grant date was $ 0.98 30,000 Vested – average weighted share price on vesting date was $ 0.68 (70,000 ) Forfeited (9,500 ) Non-vested grants at June 30, 2020 439,000 For the three six June 30, 2020 three six June 30, 2019 Non-vested RSU grants will vest as follows: Vesting Year RSUs Vesting 2020 106,250 2021 308,750 2022 24,000 439,000 The outstanding RSUs have a value of $0.3 million based on the July 31, 2020, At July 31, 2020,

Note 11 - Leases

Note 11 - Leases	6 Months Ended
	Jun. 30, 2020
Notes to Financial Statements
Lessee, Operating Leases [Text Block]	( 11 LEASES We have operating leases for office space and processing facilities with remaining lease terms ranging from less than one five not not Information related to leases was as follows (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2020 2019 2020 2019 Operating lease information: Operating cash outflows from operating leases $ 47 $ 78 $ 134 $ 157 Weighted average remaining lease term in years 3.67 4.19 3.67 4.19 Weighted average discount rate 6.0 % 6.0 % 6.0 % 6.0 % Future minimum lease payments under non-cancellable leases as of June 30, 2020 Year Amount (In thousands) 2020 $ 99 2021 201 2022 206 2023 174 2024 59 Total minimum lease payments $ 739 Less imputed interest (56 ) Total operating lease liability $ 683 As reflected on balance sheet: Other long-term liabilities $ 683 At June 30, 2020 December 31, 2019

Note 12 - Self-insurance

Note 12 - Self-insurance	6 Months Ended
	Jun. 30, 2020
Notes to Financial Statements
Self Insurance [Text Block]	( 12 SELF-INSURANCE We self-insure our underground mining equipment. Such equipment is allocated among seven mining units dispersed over ten miles. The historical cost of such equipment was approximately $273 million as of June 30, 2020 December 31, 2019 Restricted cash of $4.5 million as of June 30, 2020 December 31, 2019 third

Note 13 - Net Income (Loss) Per

Note 13 - Net Income (Loss) Per Share	6 Months Ended
	Jun. 30, 2020
Notes to Financial Statements
Earnings Per Share [Text Block]	( 13 NET INCOME (LOSS) PER SHARE We compute net income (loss) per share using the two The following table sets forth the computation of net income (loss) allocated to common shareholders (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2020 2019 2020 2019 Numerator: Net income (loss) $ 254 $ (3,344 ) $ (3,406 ) $ 3,656 Less loss (earnings) allocated to RSUs (4 ) 85 56 (94 ) Net income (loss) allocated to common shareholders $ 250 $ (3,259 ) $ (3,350 ) $ 3,562

Note 14 - Fair Value Measuremen

Note 14 - Fair Value Measurements	6 Months Ended
	Jun. 30, 2020
Notes to Financial Statements
Fair Value Measurement and Measurement Inputs, Recurring and Nonrecurring [Text Block]	( 14 FAIR VALUE MEASUREMENTS We account for certain assets and liabilities at fair value. The hierarchy below lists three one three Level 1: 1 Level 2: not no 2 Level 3: no 3 June 30, 2020 May 2022. $1.79/gallon $2.00/gallon December 2021. third not 2. The following table summarizes our financial assets and liabilities measured on a recurring basis at fair value at June 30, 2020 December 31, 2019 Level 1 Level 2 Level 3 Total December 31, 2019 Assets: Fuel hedge $ — $ — $ 25 $ 25 Marketable securities - restricted 2,296 — — 2,296 $ 2,296 $ — $ 25 $ 2,321 Liabilities: Interest rate swaps $ — $ — $ 3,825 $ 3,825 June 30, 2020 Liabilities: Fuel hedge — — 888 888 Interest rate swaps — — 5,801 5,801 $ — $ — $ 6,689 $ 6,689 The table below highlights the change in fair value of the fuel hedges and interest rate swaps which are based on a discounted future cash flow model (in thousands): Ending balance, December 31, 2019 $ (3,800 ) Change in estimated fair value (2,889 ) Ending balance, June 30, 2020* $ (6,689 ) *Recorded in accounts payable and accrued liabilities and other liabilities in the Balance Sheet to these Condensed Consolidated Financial Statements.

Note 15 - Equity Method Investm

Note 15 - Equity Method Investments	6 Months Ended
	Jun. 30, 2020
Notes to Financial Statements
Equity Method Investments and Joint Ventures Disclosure [Text Block]	( 15 EQUITY METHOD INVESTMENTS We own a 50% interest in Sunrise Energy, LLC, which owns gas reserves and gathering equipment with plans to develop and operate such reserves. Sunrise Energy also plans to develop and explore for oil, gas, and coal-bed methane gas reserves on or near our underground coal reserves. The carrying value of the investment included in our condensed consolidated balance sheets as of June 30, 2020 December 31, 2019

Significant Accounting Policies

Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2020
Accounting Policies [Abstract]
New Accounting Pronouncements, Policy [Policy Text Block]	New Accounting Standards Issued and Adopted In August 2018, 2018 13, 820 2018 13 December 15, 2019. 2018 13 January 1, 2020. 2018 13 not

Note 4 - Other Long-term Asse_2

Note 4 - Other Long-term Assets (Tables)	6 Months Ended
	Jun. 30, 2020
Notes Tables
Schedule of Other Assets, Noncurrent [Table Text Block]	June 30, December 31, 2020 2019 Advanced coal royalties $ 6,303 $ 6,105 Marketable equity securities available for sale, at fair value (restricted)* — 2,296 Other 1,866 1,923 Total other assets $ 8,169 $ 10,324

Note 5 - Bank Debt (Tables)

Note 5 - Bank Debt (Tables)	6 Months Ended
	Jun. 30, 2020
Notes Tables
Schedule of Debt [Table Text Block]	June 30, December 31, 2020 2019 Current bank debt $ 36,750 $ 34,912 Less unamortized debt issuance cost (2,439 ) (1,868 ) Net current portion $ 34,311 $ 33,044 Long-term bank debt $ 124,363 $ 145,238 Less unamortized debt issuance cost (4,900 ) (4,644 ) Net long-term portion $ 119,463 $ 140,594 Total bank debt $ 161,113 $ 180,150 Less total unamortized debt issuance cost (7,339 ) (6,512 ) Net bank debt $ 153,774 $ 173,638
Schedule of Line of Credit Facilities [Table Text Block]	Fiscal Periods Ending Ratio March 31, 2020 and June 30, 2020 4.00 to 1.00 September 30, 2020 and December 31, 2020 3.50 to 1.00 March 31, 2021 and June 30, 2021 3.25 to 1.00 September 30, 2021 and December 31, 2021 3.00 to 1.00 March 31, 2022 and each fiscal quarter thereafter 2.50 to 1.00

Note 6 - Accounts Payable and_2

Note 6 - Accounts Payable and Accrued Liabilities (Tables)	6 Months Ended
	Jun. 30, 2020
Notes Tables
Schedule of Accounts Payable and Accrued Liabilities [Table Text Block]	June 30, December 31, 2020 2019 Accounts payable $ 15,331 $ 16,115 Accrued property taxes 2,543 2,835 Accrued payroll 2,605 2,151 Workers' compensation reserve 3,699 3,446 Group health insurance 2,100 2,500 Fair value of interest rate swaps 3,246 1,714 Other 3,277 3,039 Total accounts payable and accrued liabilities $ 32,801 $ 31,800

Note 8 - Other Operating Inco_2

Note 8 - Other Operating Income (Tables)	6 Months Ended
	Jun. 30, 2020
Notes Tables
Schedule of Other Operating Income (Expense) [Table Text Block]	Three Months Ended June 30, Six Months Ended June 30, 2020 2019 2020 2019 Equity income (loss) - Sunrise Energy $ 1,231 $ (132 ) $ 1,286 $ (166 ) Government imposition reimbursements 100 150 200 300 Gain on sale of royalty interests in oil properties — 449 — 2,949 Coal storage 84 — 84 — Miscellaneous 193 730 644 2,192 $ 1,608 $ 1,197 $ 2,214 $ 5,275

Note 10 - Stock Compensation _2

Note 10 - Stock Compensation Plans (Tables)	6 Months Ended
	Jun. 30, 2020
Notes Tables
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]	Non-vested grants at December 31, 2019 488,500 Granted – share price on grant date was $ 0.98 30,000 Vested – average weighted share price on vesting date was $ 0.68 (70,000 ) Forfeited (9,500 ) Non-vested grants at June 30, 2020 439,000
Share-based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]	Vesting Year RSUs Vesting 2020 106,250 2021 308,750 2022 24,000 439,000

Note 11 - Leases (Tables)

Note 11 - Leases (Tables)	6 Months Ended
	Jun. 30, 2020
Notes Tables
Lease, Cost [Table Text Block]	Three Months Ended June 30, Six Months Ended June 30, 2020 2019 2020 2019 Operating lease information: Operating cash outflows from operating leases $ 47 $ 78 $ 134 $ 157 Weighted average remaining lease term in years 3.67 4.19 3.67 4.19 Weighted average discount rate 6.0 % 6.0 % 6.0 % 6.0 %
Lessee, Operating Lease, Liability, Maturity [Table Text Block]	Year Amount (In thousands) 2020 $ 99 2021 201 2022 206 2023 174 2024 59 Total minimum lease payments $ 739 Less imputed interest (56 ) Total operating lease liability $ 683 As reflected on balance sheet: Other long-term liabilities $ 683

Note 13 - Net Income (Loss) P_2

Note 13 - Net Income (Loss) Per Share (Tables)	6 Months Ended
	Jun. 30, 2020
Notes Tables
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	Three Months Ended June 30, Six Months Ended June 30, 2020 2019 2020 2019 Numerator: Net income (loss) $ 254 $ (3,344 ) $ (3,406 ) $ 3,656 Less loss (earnings) allocated to RSUs (4 ) 85 56 (94 ) Net income (loss) allocated to common shareholders $ 250 $ (3,259 ) $ (3,350 ) $ 3,562

Note 14 - Fair Value Measurem_2

Note 14 - Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2020
Notes Tables
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]	Level 1 Level 2 Level 3 Total December 31, 2019 Assets: Fuel hedge $ — $ — $ 25 $ 25 Marketable securities - restricted 2,296 — — 2,296 $ 2,296 $ — $ 25 $ 2,321 Liabilities: Interest rate swaps $ — $ — $ 3,825 $ 3,825 June 30, 2020 Liabilities: Fuel hedge — — 888 888 Interest rate swaps — — 5,801 5,801 $ — $ — $ 6,689 $ 6,689
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]	Ending balance, December 31, 2019 $ (3,800 ) Change in estimated fair value (2,889 ) Ending balance, June 30, 2020* $ (6,689 )

Note 2 - Long-lived Asset Imp_2

Note 2 - Long-lived Asset Impairments (Details Textual) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019	Dec. 31, 2019	Jun. 30, 2020
Carlisle Mine [Member]
Asset Impairment Charges, Total	$ 0	$ 65,700
Mineral Properties, Net, Total				$ 1,800
Equipment, Redeployed	23,000
Carlisle Mine [Member] | Closing of Mine [Member]
Restructuring and Related Cost, Expected Cost, Total				1,100
Restructuring and Related Costs, Incurred Cost, Total	$ 600
Bulldog Reserves [Member]
Asset Impairment Charges, Total		9,200
Hourglass Sands [Member]
Asset Impairment Charges, Total			$ 2,900
Mineral Properties, Net, Total		$ 1,900	$ 1,900	$ 1,800

Note 3 - Inventory (Details Tex

Note 3 - Inventory (Details Textual) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Inventory Adjustments, Total	$ 0.6	$ 2

Note 4 - Other Long-term Asse_3

Note 4 - Other Long-term Assets - Other Long-term Assets (Details) - USD ($) $ in Thousands		Jun. 30, 2020	Dec. 31, 2019
Advanced coal royalties		$ 6,303	$ 6,105
Marketable equity securities available for sale, at fair value (restricted)*	[1]	0	2,296
Other		1,866	1,923
Total other assets		$ 8,169	$ 10,324
[1]	Held by Sunrise Indemnity, Inc., our wholly-owned captive insurance company.

Note 5 - Bank Debt (Details Tex

Note 5 - Bank Debt (Details Textual) $ in Thousands	Apr. 16, 2020USD ($)	Apr. 15, 2020USD ($)	Jun. 30, 2020USD ($)	Jun. 30, 2019USD ($)	Apr. 30, 2020USD ($)	Dec. 31, 2019USD ($)
Long-term Debt, Gross			$ 161,113			$ 180,150
Debt Issuance Costs, Net, Total			$ 7,339			6,512
Leverage Ratio			2.97
Debt Service Coverage Ratio			1.34
Proceeds from Notes Payable, Total			$ 10,000	$ 0
Interest Rate Swap [Member]
Derivative, Fixed Interest Rate			2.92%
Derivative, Variable Interest Rate			6.42%
Derivative, Amount of Hedged Item			$ 139,000
Interest Rate Swap [Member] | Not Designated as Hedging Instrument [Member]
Debt Instrument, Interest Rate, Effective Percentage Unhedged Amount			4.00%
London Interbank Offered Rate (LIBOR) Swap Rate [Member] | Interest Rate Swap [Member]
Derivative, Basis Spread on Variable Rate			3.50%
Credit Agreement [Member]
Debt Instrument, Covenant, Maximum Annual Capital Expenditures		$ 30,000
Debt Instrument, Covenant, Maximum Leverage Ratio for Dividends		2
Debt Instrument, Increase (Decrease), Net, Total			$ (19,000)
Long-term Debt, Gross			161,000
Debt Instrument, Unused Borrowing Capacity, Amount			45,300
Debt Instrument, Liquidity			52,600
Debt Issuance Costs, Net, Total		$ 1,900	7,300		$ 7,900	$ 6,500
Debt Instrument, Unhedged Portion			$ 22,000
Credit Agreement [Member] | Interest Rate Swap [Member]
Derivative, Fixed Interest Rate			2.92%
Credit Agreement [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Variable Rate Floor		0.50%
Credit Agreement [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member]
Debt Instrument, Basis Spread on Variable Rate		2.75%
Credit Agreement [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member]
Debt Instrument, Basis Spread on Variable Rate		4.00%
Credit Agreement [Member] | Through December 31, 2020 [Member]
Debt Instrument, Covenant, Minimum Debt Service Coverage Ratio		1.05
Credit Agreement [Member] | After December 31, 2021 [Member]
Debt Instrument, Covenant, Minimum Debt Service Coverage Ratio		1.25
Credit Agreement [Member] | Term Loan [Member]
Long-term Debt, Gross			$ 86,000
Credit Agreement [Member] | Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity			120,000
Long-term Line of Credit, Total			75,000
Credit Agreement [Member] | Revolving Credit Facility [Member] | Interest Rate Swap [Member]
Derivative, Notional Amount			53,000
Paycheck Protection Program CARES Act [Member]
Proceeds from Notes Payable, Total	$ 10,000
Notes Payable, Total			$ 10,000

Note 5 - Bank Debt - Bank Debt,

Note 5 - Bank Debt - Bank Debt, Less Debt Issuance Costs (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Current bank debt	$ 36,750	$ 34,912
Less unamortized debt issuance cost	(2,439)	(1,868)
Net current portion	34,311	33,044
Long-term bank debt	124,363	145,238
Less unamortized debt issuance cost	(4,900)	(4,644)
Net long-term portion	119,463	140,594
Total bank debt	161,113	180,150
Less total unamortized debt issuance cost	(7,339)	(6,512)
Net bank debt	$ 153,774	$ 173,638

Note 5 - Bank Debt - Maximum Le

Note 5 - Bank Debt - Maximum Leverage Ratio (Details) - Credit Agreement [Member]	Jun. 30, 2020
Periods Ended March 31, 2020 and June 30, 2020 [Member]
Maximum Leverage Ratio	4
Periods Ended September 30, 2020 ad December 31, 2020 [Member]
Maximum Leverage Ratio	3.50
Periods Ended March 31, 2021 and June 30, 2021 [Member]
Maximum Leverage Ratio	3.25
Periods Ended September 30, 2021 and December 31, 2021 [Member]
Maximum Leverage Ratio	3
Period Ended March 31, 2022 and Thereafter [Member]
Maximum Leverage Ratio	2.50

Note 6 - Accounts Payable and_3

Note 6 - Accounts Payable and Accrued Liabilities - Accounts Payable and Accrued Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Accounts payable	$ 15,331	$ 16,115
Accrued property taxes	2,543	2,835
Accrued payroll	2,605	2,151
Workers' compensation reserve	3,699	3,446
Group health insurance	2,100	2,500
Other	3,277	3,039
Total accounts payable and accrued liabilities	32,801	31,800
Interest Rate Swap [Member]
Fair value of interest rate swaps	$ 3,246	$ 1,714

Note 7 - Revenue 1 (Details Tex

Note 7 - Revenue 1 (Details Textual) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Contract with Customer, Liability, Current	$ 0.5		$ 0.5
Coal [Member] | INDIANA | Revenue from Contract with Customer Benchmark [Member] | Geographic Concentration Risk [Member]
Concentration Risk, Percentage	73.00%	67.00%	75.00%	70.00%

Note 7 - Revenue 2 (Details Tex

Note 7 - Revenue 2 (Details Textual) $ in Millions	Jun. 30, 2020USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-07-01 | Fixed-price Contract [Member]
Revenue, Remaining Performance Obligation, Amount	$ 450
Revenue, Remaining Performance Obligation, Percentage	70.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period (Year)	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01 | Contracts with Price Reopeners [Member]
Revenue, Remaining Performance Obligation, Amount	$ 266
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period (Year)	1 year

Note 8 - Other Operating Inco_3

Note 8 - Other Operating Income - Other Operating Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Equity income (loss) - Sunrise Energy	$ 1,231	$ (132)	$ 1,286	$ (166)
Government imposition reimbursements	100	150	200	300
Gain on sale of royalty interests in oil properties	0	449	0	2,949
Coal storage	84	0	84	0
Miscellaneous	193	730	644	2,192
Other Operating Income	$ 1,608	$ 1,197	$ 2,214	$ 5,275

Note 9 - Income Taxes (Details

Note 9 - Income Taxes (Details Textual)	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Effective Income Tax Rate Reconciliation, Percent, Total	45.00%	4.00%

Note 10 - Stock Compensation _3

Note 10 - Stock Compensation Plans (Details Textual) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Jul. 31, 2020
Share-based Payment Arrangement, Expense	$ 0.3	$ 0.5	$ 0.6	$ 1
Restricted Stock Units (RSUs) [Member] | Subsequent Event [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Outstanding					$ 0.3
Share Price (in dollars per share)					$ 0.63
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)					1,388,814

Note 10 - Stock Compensation _4

Note 10 - Stock Compensation Plans - RSU Activity (Details) - Restricted Stock Units (RSUs) [Member]	6 Months Ended
	Jun. 30, 2020shares
Non-vested grants at December 31, 2019 (in shares)	488,500
Granted – share price on grant date was $0.98 (in shares)	30,000
Vested – average weighted share price on vesting date was $0.68 (in shares)	(70,000)
Forfeited (in shares)	(9,500)
Non-vested grants at June 30, 2020 (in shares)	439,000

Note 10 - Stock Compensation _5

Note 10 - Stock Compensation Plans - RSU Activity (Details) (Parentheticals) - Restricted Stock Units (RSUs) [Member]	6 Months Ended
	Jun. 30, 2020$ / shares
Share price on grant date (in dollars per share)	$ 0.98
Share price on vesting date (in dollars per share)	$ 0.68

Note 10 - Stock Compensation _6

Note 10 - Stock Compensation Plans - Vesting of Non-vested RSU Grants (Details) - Restricted Stock Units (RSUs) [Member]	Jun. 30, 2020shares
RSUs vesting (in shares)	439,000
Vesting in 2020 [Member]
RSUs vesting (in shares)	106,250
Vesting in 2021 [Member]
RSUs vesting (in shares)	308,750
Vesting in 2022 [Member]
RSUs vesting (in shares)	24,000

Note 11 - Leases (Details Textu

Note 11 - Leases (Details Textual) - USD ($)	Jun. 30, 2020	Dec. 31, 2019
Buildings and Equipment [Member]
Operating Lease, Right-of-Use Asset	$ 683,000	$ 800,000
Minimum [Member]
Lessee, Operating Lease, Remaining Lease Term (Year)	1 year
Maximum [Member]
Lessee, Operating Lease, Remaining Lease Term (Year)	5 years

Note 11 - Leases - Information

Note 11 - Leases - Information Related to Leases (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Operating cash outflows from operating leases	$ 47	$ 78	$ 134	$ 157
Weighted average remaining lease term in years (Year)	3 years 8 months 1 day	4 years 2 months 8 days	3 years 8 months 1 day	4 years 2 months 8 days
Weighted average discount rate	6.00%	6.00%	6.00%	6.00%

Note 11 - Leases - Future Minim

Note 11 - Leases - Future Minimum Lease Payments (Details) $ in Thousands	Jun. 30, 2020USD ($)
2020	$ 99
2021	201
2022	206
2023	174
2024	59
Total minimum lease payments	739
Less imputed interest	(56)
Total operating lease liability	683
Other Noncurrent Liabilities [Member]
Other long-term liabilities	$ 683

Note 12 - Self-insurance (Detai

Note 12 - Self-insurance (Details Textual) $ in Thousands	Jun. 30, 2020USD ($)item	Dec. 31, 2019USD ($)	Jun. 30, 2019USD ($)
Property, Plant and Equipment, Gross, Ending Balance	$ 560,428	$ 550,496
Restricted Cash and Cash Equivalents, Total	$ 4,508	4,512	$ 4,576
Future Workers' Compensation Claim Payments [Member]
Restricted Cash and Cash Equivalents, Total		4,500
Mining Properties and Mineral Rights [Member]
Number of Mining Units	7
Area of Real Estate Property | item	10
Property, Plant and Equipment, Gross, Ending Balance		$ 273,000

Note 13 - Net Income (Loss) P_3

Note 13 - Net Income (Loss) Per Share - Computation of Net Income(Loss) Allocated to Common Shareholders (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Net income (loss)	$ 254	$ (3,344)	$ (3,406)	$ 3,656
Less loss (earnings) allocated to RSUs	(4)	85	56	(94)
Net income (loss) allocated to common shareholders	$ 250	$ (3,259)	$ (3,350)	$ 3,562

Note 14 - Fair Value Measurem_3

Note 14 - Fair Value Measurements (Details Textual) gal in Millions, $ in Millions	Jan. 01, 2020$ / gal	Jun. 30, 2020USD ($)gal
Interest Rate Swap [Member]
Derivative, Number of Instruments Held, Total		2
Interest Rate Swap, One [Member]
Derivative, Notional Amount | $		$ 53
Interest Rate Swap, Two [Member]
Derivative, Notional Amount | $		$ 58
Fuel Hedge [Member]
Derivative, Nonmonetary Notional Amount, Volume (Gallon) | gal		1.8
Fuel Hedge [Member] | Minimum [Member]
Underlying, Derivative Volume (in USD per Gallon) | $ / gal	1.79
Fuel Hedge [Member] | Maximum [Member]
Underlying, Derivative Volume (in USD per Gallon) | $ / gal	2

Note 14 - Fair Value Measurem_4

Note 14 - Fair Value Measurements - Financial Assets and Liabilities Measured on a Recurring Basis at Fair Value (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Marketable securities - restricted		$ 2,296
Assets, Fair Value Disclosure		2,321
Derivative liabilities	$ 6,689
Fuel Hedge [Member]
Fuel hedge		25
Derivative liabilities	888
Interest Rate Swap [Member]
Derivative liabilities	5,801	3,825
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Marketable securities - restricted		2,296
Assets, Fair Value Disclosure		2,296
Derivative liabilities	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Fuel Hedge [Member]
Fuel hedge		0
Derivative liabilities	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Interest Rate Swap [Member]
Derivative liabilities	0	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Marketable securities - restricted		0
Assets, Fair Value Disclosure		0
Derivative liabilities	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Fuel Hedge [Member]
Fuel hedge		0
Derivative liabilities	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Interest Rate Swap [Member]
Derivative liabilities	0	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Marketable securities - restricted		0
Assets, Fair Value Disclosure		25
Derivative liabilities	6,689
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Fuel Hedge [Member]
Fuel hedge		25
Derivative liabilities	888
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Interest Rate Swap [Member]
Derivative liabilities	$ 5,801	$ 3,825

Note 14 - Fair Value Measurem_5

Note 14 - Fair Value Measurements - Change in Fair Value of the Fuel Hedges and Interest Rate Swaps (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2020USD ($)
Ending balance, December 31, 2019	$ (3,800)
Change in estimated fair value	(2,889)
Ending balance, June 30, 2020*	$ (6,689)	[1]
[1]	Recorded in accounts payable and accrued liabilities and other liabilities in the Balance Sheet to these Condensed Consolidated Financial Statements.

Note 15 - Equity Method Inves_2

Note 15 - Equity Method Investments (Details Textual) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Equity Method Investments	$ 3,412	$ 3,139
Sunrise Energy, LLC [Member]
Equity Method Investment, Ownership Percentage	50.00%
Equity Method Investments	$ 3,400	$ 3,100