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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Cash flows from operating activities:    
Consolidated net income $ 7,787 $ 990
Adjustments to reconcile consolidated net income to net cash provided by operating activities:    
Depreciation and amortization 1,563 1,266
Stock-based compensation 2,881 1,034
Deferred income taxes 149 (54)
Pension cost 342 309
Changes in operating assets and liabilities:    
Accounts receivable (1,353) 137
Prepaid expenses and other current assets (47) 86
Other assets (16) 426
Accounts payable and accrued expenses 661 (307)
Deferred revenues 18 3,145
Accrued salaries, wages and related benefits (249) (490)
Income and other taxes (869) 225
Net cash provided by operating activities 10,867 6,767
Cash flows from investing activities:    
Capital expenditures (2,350) (1,339)
Net cash used in investing activities (2,350) (1,339)
Cash flows from financing activities:    
Proceeds from exercise of stock options 963  
Payment of long-term obligations (103) (291)
Net cash provided by (used in) financing activities 860 (291)
Effect of exchange rate changes on cash and cash equivalents 282 32
Net increase in cash and cash equivalents 9,659 5,169
Cash and cash equivalents, beginning of period 46,897 13,806
Cash and cash equivalents, end of period 56,556 18,975
Supplemental disclosures of cash flow information:    
Cash paid for income taxes 112 155
Cash paid for operating leases $ 356 361
Cash paid for interest   $ 68