Discontinued Operation and Assets and Liabilities Related to Discontinued Operation - Discontinued operation in the Condensed Consolidated Balance Sheets (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Carrying amounts of major classes of assets and liabilities, which are included in assets and liabilities related to discontinued operation in the Condensed Consolidated Balance Sheets
Liabilities related to discontinued operation	$ 2,763	$ 1,745
Discontinued Operations, Held-for-Sale [Member] | OKC
Carrying amounts of major classes of assets and liabilities, which are included in assets and liabilities related to discontinued operation in the Condensed Consolidated Balance Sheets
Accounts receivable, net	625	1,016
Prepaid assets	100	313
Inventories, net	1,598	4,766
Patents and trademark, net	46	140
Assets related to discontinued operation	4,174	9,528
Accounts payable	1,420	1,272
Accrued employee compensation and benefit costs	86	124
Other accrued liabilities	1,258	349
Liabilities related to discontinued operation	2,764	1,745
Discontinued Operations, Held-for-Sale [Member] | OKC | Machinery and equipment
Carrying amounts of major classes of assets and liabilities, which are included in assets and liabilities related to discontinued operation in the Condensed Consolidated Balance Sheets
Property, plant and equipment	255	567
Discontinued Operations, Held-for-Sale [Member] | OKC | Building and improvements, net
Carrying amounts of major classes of assets and liabilities, which are included in assets and liabilities related to discontinued operation in the Condensed Consolidated Balance Sheets
Property, plant and equipment	$ 1,550	$ 2,726