Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ (1,839)	$ 8,207
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Stock-based compensation	6,227	4,405
Depreciation and amortization	4,557	4,871
Changes in value of life insurance policies	1,911	496
Deferred income taxes	1,698	4,704
Other non-cash items	391	(632)
Changes in assets and liabilities:
Accounts receivable	(2,831)	(3,180)
Inventories	(2,498)	(400)
Prepaid expenses and other current assets	(3,952)	(1,628)
Other assets	(571)	(850)
Accounts payable	3,693	2,265
Accrued expenses	4,136	(8,012)
Unearned revenues	(163)	407
Other liabilities	(5,469)	(2,666)
Net cash provided by operating activities	5,290	7,987
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(2,297)	(2,772)
Patents and other intangibles	(13)	(78)
Proceeds from sale of assets	81	218
Proceeds from insurance recovery	583	0
Net proceeds (premiums) on life insurance policies	2,074	1,562
Net cash used in investing activities	428	(1,070)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayment of long-term debt	(14,000)	(119,000)
Proceeds from long-term debt	15,000	68,000
Proceeds from issuance of common shares	0	60,000
Transaction costs on the issuance of common shares	0	(861)
Dividends paid	(463)	(446)
Repurchase of common shares	(1,920)	(171)
Other financing activities	(1)	(439)
Net cash used in financing activities	(1,384)	7,083
NET CHANGE IN CASH AND CASH EQUIVALENTS	4,334	14,000
CASH AND CASH EQUIVALENTS, beginning of period	17,703	13,806
CASH AND CASH EQUIVALENTS, end of period	22,037	27,806
Supplemental disclosures of cash flow information:
Cash payments for interest	2,508	3,739
Cash payments for income taxes	$ 2,691	$ 1,429