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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Cash flows from operating activities:    
Consolidated net loss $ (10,047) $ (568)
Adjustments to reconcile consolidated net loss to net cash provided by operating activities:    
Depreciation and amortization 2,836 2,054
Gain on loan forgiveness 0 (580)
Stock-based compensation 2,370 1,117
Deferred income taxes 242 (16)
Pension cost 577 308
Loss on lease termination 125 0
Changes in operating assets and liabilities:    
Accounts receivable 1,690 431
Prepaid expenses and other current assets (235) 342
Other assets 734 214
Accounts payable and accrued expenses (253) 2,895
Accrued salaries, wages and related benefits 498 976
Income and other taxes (197) (1,531)
Net cash provided by (used in) operating activities (1,660) 5,642
Cash flows from investing activities:    
Capital expenditures (5,253) (2,919)
Net cash used in investing activities (5,253) (2,919)
Cash flows from financing activities:    
Proceeds from stock option exercises 276 2,214
Withholding taxes on net settlement of stock-based compensation 0 (763)
Payment of long-term obligations (510) (666)
Net cash provided by (used in) financing activities (234) 785
Effect of exchange rate changes on cash and cash equivalents (1,026) (138)
Net increase (decrease) in cash and cash equivalents (8,173) 3,370
Cash and cash equivalents, beginning of period 18,902 17,573
Cash and cash equivalents, end of period 10,729 20,943
Supplemental disclosures of cash flow information:    
Shares withheld for withholding taxes on net settlement for stock-based compensation 0 763
Cash paid for income taxes 979 201
Cash paid for operating leases 1,424 1,312
Cash paid for interest $ 1 $ 18