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Condensed Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Cash flows from operating activities    
Net income (loss) $ (10,065) $ 65
Adjustments to reconcile net income (loss) to net cash used in operating activities:    
Depreciation expense 5,027 6,742
Amortization of intangible assets 12,043 12,384
Inventory write down 1,564 827
Stock-based compensation expense 2,098 2,772
Deferred income taxes 695 (1,225)
Noncash losses and other, net 2,929 3,068
Changes in operating assets and liabilities    
Accounts receivable—trade (14,671) (25,322)
Inventories (33,772) (33,595)
Prepaid expenses and other assets (3,205) 1,589
Cost and estimated profit in excess of billings 2,845 (7,994)
Accounts payable, deferred revenue and other accrued liabilities 2,436 (1,846)
Billings in excess of costs and estimated profits earned 2,585 (8,024)
Net cash used in operating activities (29,491) (50,559)
Cash flows from investing activities    
Capital expenditures for property and equipment (2,809) (3,570)
Proceeds from sale of property and equipment 1,106 2,608
Payments related to business acquisitions and dispositions 0 (485)
Net cash used in investing activities (1,703) (1,447)
Cash flows from financing activities    
Borrowings on Credit Facility 216,843 274,472
Repayments on Credit Facility (206,843) (240,899)
Payment of capital lease obligations (507) (570)
Repurchases of stock (5,370) (361)
Net cash provided by financing activities 4,123 32,642
Effect of exchange rate changes on cash 798 (590)
Net decrease in cash, cash equivalents and restricted cash (26,273) (19,954)
Cash, cash equivalents and restricted cash at beginning of period 51,029 46,858
Cash, cash equivalents and restricted cash at end of period 24,756 26,904
Noncash activities    
Operating lease right of use assets obtained in exchange for lease obligations 2,755 1,348
Finance lease right of use assets obtained in exchange for lease obligations 1,216 458
Conversion of debt to common stock $ 113,650 $ 0