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Condensed Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Cash flows from operating activities:    
Net loss applicable to common stockholders $ (3,037) $ (8,767)
Adjustments to reconcile net loss to net cash used in operating activities:    
Amortization and depreciation 1,872 3,126
Allowance for credit losses (135) 209
Deferred income taxes 3  
Loss on the disposal of capital assets   192
Stock-based compensation 1,281 1,907
Change in assets and liabilities:    
Accounts receivable, net (231) 53
Prepaid expenses, other current assets and other assets 102 (276)
Accounts payable (767) (860)
Accrued compensation, other accrued, and other liabilities (712) (1,563)
Deferred revenue and deposits (355) (170)
Net cash used in operating activities (1,979) (6,149)
Cash flows from investing activities:    
Purchases of property and equipment (264) (524)
Proceeds from sales of property and equipment   66
Net cash used in investing activities (264) (458)
Cash flows from financing activities:    
Proceeds from exercises of stock options, issuance and vesting of restricted stock and employee stock purchase plan, net   22
Repayments under finance lease liabilities and related obligations (286) (172)
Net cash used in financing activities (286) (150)
Net decrease in cash and cash equivalents (2,529) (6,757)
Cash and cash equivalents at beginning of period 14,607 20,474
Cash and cash equivalents at end of period 12,078 13,717
Supplemental disclosure of cash flow information:    
Cash paid for income taxes 65 70
Cash paid for interest 96 $ 90
Non-cash purchases of property and equipment $ 434