Business Segments - Reconciliation of Operating Profit (Loss) from Segments to Consolidated (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total segment operating income	$ 5,566	$ 525
Gain on sale of former joint venture facility	3,477	0
Interest expense	(1,125)	(1,388)
Other income (expense) - net	253	(1,849)
Public company costs	(1,219)	(656)
Corporate executive management costs	(1,407)	(366)
Corporate management stock-based compensation	(599)	(544)
Other	(76)	37
Income (loss) before income taxes	4,694	(2,712)
Depreciation/amortization	3,591	3,870
Expenditures for Long-Lived Assets:	2,712	699
TOTAL ASSETS	326,401		$ 312,401
Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total segment operating income	5,390	2,054
Income (loss) before income taxes	4,694	(2,712)
Depreciation/amortization	3,133	3,429
Expenditures for Long-Lived Assets:	2,569	358
Unallocated corporate assets
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Depreciation/amortization	458	441
Expenditures for Long-Lived Assets:	143	$ 341
TOTAL ASSETS	$ 28,984		$ 25,516