Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
CASH FLOWS FROM OPERATING ACTIVITIES:
Income (loss) from continuing operations	$ 19,658	$ 20,219	$ (97,073)
Income (loss) from discontinued operations, net of income taxes	0	0	(424)
Net income (loss)	19,658	20,219	(97,497)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Stock-based compensation	7,756	19,093	7,394
Depreciation and amortization	17,161	18,516	20,867
Impairments, inventory write-down and other charges	0	0	132,579
Changes in value of life insurance policies	5,069	(2,672)	(894)
Deferred income taxes	433	6,012	(12,216)
Realization of pension obligation	451	(234)	188
Net provision for credit losses	(6)	(256)	1,618
Gain on sale of business	0	(1,012)	0
(Gain) loss on sale of discontinued operations	0	0	573
Other non-cash items	(547)	(2,524)	(683)
Changes in assets and liabilities, net of effects of acquisitions and divestures:
Accounts receivable	(10,078)	(13,522)	46,421
Inventories	(14,860)	(4,547)	1,471
Prepaid expenses and other current assets	(76)	1,845	(2,296)
Other assets	(1,369)	(523)	(1,905)
Accounts payable	15,374	6,568	(12,838)
Accrued expenses	(1,302)	(8,759)	602
Unearned revenue	(1,823)	2,308	(7,924)
Other liabilities	(10,885)	(3,933)	(17,592)
Net cash provided by operating activities	24,956	36,579	57,868
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(10,216)	(13,539)	(11,880)
Patents and other intangibles	(29)	(318)	(498)
Distribution received from life insurance policies	0	0	20,443
Proceeds from sale of assets	1,889	678	1,734
Proceeds from sale of business, net of cash sold	240	873	0
Proceeds from insurance recovery	583	726	0
Proceeds (payment) from sale of discontinued operations	0	0	(225)
Net proceeds (premiums) on life insurance policies	3,677	1,357	(1,723)
Net cash provided by (used in) investing activities	(3,856)	(10,223)	7,851
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayment of long-term debt	(131,000)	(226,000)	(102,000)
Proceeds from long-term debt	116,000	155,000	56,000
Proceeds from issuance of common shares	0	60,000	0
Transaction costs on equity distribution program	(411)	(861)	0
Debt issuance costs	(2,206)	0	(1,536)
Dividends paid	(1,853)	(1,834)	(12,446)
Repurchase of common shares	(3,903)	(8,256)	(2,793)
Other financing activities	(2)	(508)	(230)
Net cash used in financing activities	(23,375)	(22,459)	(63,005)
NET CHANGE IN CASH AND CASH EQUIVALENTS	(2,275)	3,897	2,714
CASH AND CASH EQUIVALENTS, beginning of year	17,703	13,806	11,092
CASH AND CASH EQUIVALENTS, end of year	15,428	17,703	13,806
Supplemental disclosures of cash flow information:
Cash payments for interest	9,300	10,477	11,669
Cash payments for income taxes	14,078	9,066	21,325
Non-cash investing and financing activities:
Capital expenditures incurred but not paid for as of the end of the year	$ 1,157	$ 1,361	$ 1,064