Income Taxes - Significant Components Of Deferred Tax Liabilities And Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Deferred tax assets:
Goodwill and other intangibles	$ 1,762	$ 8,099
Accrued settlement	2,001	3,915
Deferred compensation	4,127	2,396
Contingent liabilities	600	613
Net operating loss / tax credit carryforwards	36,217	30,812
Pension and post-retirement liability	149	297
Inventories	852	1,790
Warranty reserve	146	202
Accounts receivable	201	181
Interest deduction carryforward	1,882	775
Capitalized research expenditures	1,599	1,292
Other	680	644
Total deferred tax assets	50,216	51,016
Less: valuation allowance	(40,125)	(40,601)
Net deferred tax assets	10,091	10,415
Deferred tax liabilities:
Goodwill and other intangibles	(2,181)	(2,803)
Depreciation	(8,596)	(9,434)
Unrealized income on interest rate swap contracts	(306)	(472)
Unremitted earnings of foreign subsidiaries	(50)	(625)
Other	(190)	(166)
Total deferred tax liabilities	(11,323)	(13,500)
Net deferred tax (liabilities) assets	$ (1,232)	$ (3,085)