UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Operating activities:
Net earnings	$ 5,554	$ 6,793
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	12,266	7,014
Gains on sales of property	(1,386)	(890)
Provision for doubtful accounts	(36)	(95)
Stock-based compensation expense	352	144
Deferred income taxes	1,493	(685)
Net change in fair value contracts	20	5
Gain on dissolution of AREC	(573)	0
Changes in assets and liabilities:
Accounts receivable	8,520	12,830
Accounts receivable/payable, affiliates	(23)	1
Inventories	(2,121)	(22,568)
Income tax receivable	(135)	1,317
Prepayments and other current assets	166	(7)
Accounts payable	13,613	22,254
Accrued liabilities	4,561	3,815
Other	871	(103)
Net cash provided by operating activities	43,142	29,825
Investing activities:
Property and equipment additions	(25,425)	(7,756)
Asset acquisition	(5,624)	0
Proceeds from property sales	2,853	1,314
Proceeds from dissolution of AREC	998	0
Insurance and state collateral (deposits) refunds	750	1,070
Net cash used in investing activities	(26,448)	(5,372)
Financing activities:
Principal repayments of finance lease obligations	(1,171)	(288)
Dividends paid on common stock	(2,960)	(2,784)
Net cash used in financing activities	(4,131)	(3,072)
Increase in cash and cash equivalents, including restricted cash	12,563	21,381
Cash and cash equivalents, including restricted cash, at beginning of period	117,066	109,393
Cash and cash equivalents, including restricted cash, at end of period	$ 129,629	$ 130,774