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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Cash flows from operating activities:    
Consolidated net loss $ (889) $ (12,005)
Adjustments to reconcile consolidated net loss to net cash provided by operating activities:    
Depreciation and amortization 4,716 3,889
Stock-based compensation 4,027 3,283
Deferred income taxes (276) 217
Provision for doubtful accounts 426 480
Pension cost 1,046 943
Loss on lease termination   125
Changes in operating assets and liabilities:    
Accounts receivable (5,116) 1,303
Prepaid expenses and other current assets 372 (226)
Other assets (171) 750
Accounts payable, accrued expenses and other (490) 322
Accrued salaries, wages and related benefits 1,653 (310)
Income and other taxes 605 13
Net cash provided by (used in) operating activities 5,903 (1,216)
Cash flows from investing activities:    
Capital expenditures (5,564) (6,526)
Proceeds from (purchase of) short term investments - others 493 (507)
Net cash used in investing activities (5,071) (7,033)
Cash flows from financing activities:    
Proceeds from exercise of stock options 3,324 332
Payment of long-term obligations (452) (639)
Net cash provided by (used in) financing activities 2,872 (307)
Effect of exchange rate changes on cash and cash equivalents 310 (554)
Net increase (decrease) in cash and cash equivalents 4,014 (9,110)
Cash and cash equivalents, beginning of year 9,792 18,902
Cash and cash equivalents, end of year 13,806 9,792
Supplemental disclosures of cash flow information:    
Vendor financed software licenses acquired 1,162  
Cash paid for income taxes 753 1,107
Cash paid for operating leases 1,557 1,838
Cash paid for interest $ 400 $ 19