Lease Arrangements - Components of Lease Expense (Details) - Selling, General and Administrative Expenses [Member] - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2022	Mar. 31, 2021
Leases [Line Items]
Operating lease cost	[1]	$ 160	$ 172
Amortization of lease assets		693	748
Interest on lease liabilities		215	242
Total lease cost		$ 1,068	$ 1,162

[1] Includes short-term leases and variable lease costs, which are not significant for the three months ended March 31, 2022 and 2021.