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Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Cash flows from operating activities:    
Net (loss) income $ (12,423) $ (1,597)
Adjustments to reconcile net (loss) income to net cash provided by operating activities:    
Depreciation 1,268 1,083
Amortization of intangible assets 4,129 4,138
Amortization of deferred financing costs 229 210
Stock-based compensation expense 3,379 3,618
Deferred income taxes and other (361) 92
Loss on equity securities - Note 6 1,593 373
Loss on pension settlement - Note 16 1,243 (0)
Gain on sale of product line - Note 14 0 (403)
Changes in operating assets and liabilities:    
Accounts receivable 3,303 1,751
Inventories (2,416) 173
Other assets 873 50
Other assets (873) (50)
Accounts payable and other current liabilities (283) (298)
Contract liabilities (819) 635
Net cash provided by operating activities (285) 9,725
Cash flows from investing activities:    
Additions to property, plant and equipment (2,343) (958)
Capitalized software development costs (454) (292)
Proceeds from sale of product line 0 512
Proceeds from sale of marketable equity securities 1,919 0
Net cash (used in) provided by investing activities (878) (738)
us-gaap_PaymentsOfDebtIssuanceCosts 161 (0)
Borrowing from revolving line of credit 8,800 3,500
Repayment of revolving line of credit (2,550) (8,450)
Repayment of term debt (5,023) (3,341)
Proceeds from exercise of stock options and employee stock purchase plan 219 724
Taxes paid related to net share settlement of equity awards (59) (451)
Net cash used in financing activities 1,226 (8,018)
Effect of exchange rate changes on cash 223 (137)
Decrease in cash and cash equivalents 286 832
Cash and cash equivalents at beginning of period 4,283 4,508
Cash and cash equivalents at end of period 4,569 5,340
Cash paid for interest 2,369 3,006
Cash paid for income taxes, net of refunds $ 315 $ 168