UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Operating activities:
Net (losses) earnings	$ (4,851)	$ 5,554
Adjustments to reconcile net losses earnings to net cash provided by (used in) operating activities:
Depreciation and amortization	13,610	12,266
Gains on sales of property	(985)	(1,386)
Provision for doubtful accounts	(27)	(36)
Stock-based compensation expense	453	352
Deferred income taxes	(1,503)	1,493
Net change in fair value contracts	(3)	20
Gain on dissolution of AREC	0	(573)
Changes in assets and liabilities:
Accounts receivable	(93)	8,520
Accounts receivable/payable, affiliates	153	(23)
Inventories	10,465	(2,121)
Income tax receivable	(1,782)	(135)
Prepayments and other current assets	142	166
Accounts payable	(70,082)	13,613
Accrued liabilities	4,396	4,561
Other	17	871
Net cash provided by (used in) operating activities	(50,090)	43,142
Investing activities:
Property and equipment additions	(3,589)	(25,425)
Asset acquisition	(9,163)	(5,624)
Proceeds from property sales	2,282	2,853
Proceeds from dissolution of AREC	0	998
Insurance and state collateral (deposits) refunds	1,127	750
Net cash used in investing activities	(9,343)	(26,448)
Financing activities:
Principal repayments of finance lease obligations	(1,677)	(1,171)
Payment of contingent consideration liability	(111)	0
Dividends paid on common stock	(3,063)	(2,960)
Net cash used in financing activities	(4,851)	(4,131)
(Decrease) Increase in cash and cash equivalents, including restricted cash	(64,284)	12,563
Cash and cash equivalents, including restricted cash, at beginning of period	122,255	117,066
Cash and cash equivalents, including restricted cash, at end of period	$ 57,971	$ 129,629