Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Operating Activities
Net income (loss)	$ (5,133)	$ 10,388
Adjustments to reconcile net income (loss) to net cash provided by (used for) operating activities:
Depreciation and amortization	5,511	7,364
Net periodic pension and other post-employment benefit	(3,461)	(2,455)
Bad debt expense	490	710
Deferred income taxes	23	3,818
(Gain) loss on sale/disposal of assets, net	56	(24,546)
Asset impairments		1,593
Gain on investment related activity	(732)
Changes in working capital and other operating assets and liabilities, net of acquisitions:
Accounts receivable	2,402	5,189
Inventories, prepaids and other current assets	(2,669)	851
Other assets	1,022	1,851
Accounts payable	(311)	(928)
Compensation and benefit obligations	(572)	(1,054)
Other accrued expenses	(615)	150
Contract liabilities	2,762	(101)
Other post-employment benefits	(53)	(45)
Net cash provided by (used for) operating activities	(1,280)	2,785
Investing Activities
Purchases of assets	(645)	(1,207)
Sales of assets	5	4,597
Proceeds from sale of investment	750
Acquisitions, net of cash acquired		(2,356)
Net cash provided by investing activities	110	1,034
Financing Activities
Dividends paid	(4,282)	(5,164)
Shares repurchased		(719)
Net cash used for financing activities	(4,282)	(5,883)
Net decrease in cash and cash equivalents	(5,452)	(2,064)
Cash and cash equivalents, beginning of period	48,626	55,313
Cash and cash equivalents, end of period	43,174	53,249
Supplemental Disclosures
Income tax paid, net (refund)	751	897
Noncash investing and financing activities:
Investments in property, plant and equipment payable		245
Dividends payable	856	1,715
Notes receivable for asset sales	$ 375	$ 22,400