Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 3,490	$ 2,442
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Stock-based compensation	4,820	8,984
Depreciation and amortization	3,843	4,044
Assets write-down	1,110	1,015
Changes in value of life insurance policies	(946)	(791)
Deferred income taxes	2,827	936
Other non-cash items	269	(195)
Changes in assets and liabilities:
Accounts receivable	(6,290)	(4,024)
Inventories	991	(6,897)
Prepaid expenses and other current assets	(2,017)	(3,399)
Other assets	160	1,746
Accounts payable	(551)	(7,078)
Accrued expenses	(2,469)	587
Unearned revenues	371	10
Other liabilities	(78)	(549)
Net cash provided by (used in) operating activities	5,530	(3,169)
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(3,052)	(2,208)
Patents and other intangibles	(3)	90
Proceeds from sale of assets	593	80
Net proceeds on life insurance policies	805	0
Net cash provided by (used in) investing activities	(1,657)	(2,038)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayment of long-term debt	(17,000)	(16,000)
Proceeds from long-term debt	14,000	24,000
Debt issuance costs	(19)	(184)
Dividends paid	(468)	(466)
Repurchase of common stock	(44)	(1)
Equity related transaction costs	(549)	(1,285)
Net cash provided by (used in) financing activities	(4,080)	6,064
NET CHANGE IN CASH AND CASH EQUIVALENTS	(207)	857
CASH AND CASH EQUIVALENTS, beginning of period	15,120	15,428
CASH AND CASH EQUIVALENTS, end of period	14,913	16,285
Supplemental disclosures of cash flow information:
Cash payments for interest	3,286	2,956
Cash payments for income taxes	2,650	1,541
Non-cash investing and financing activities:
Capital expenditures incurred but not paid for as of the end of the period	1,200	575
Equity related transaction costs incurred but not paid for as of the end of the period	$ 207	$ 0