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Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Cash flows from operating activities    
Net loss $ (5,938) $ (3,739)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization expense 1,797 1,820
Amortization of deferred finance costs included in interest expense   91
Stock-based compensation 57 32
Undistributed proportional share of net loss of equity method investee 515  
Changes in operating assets and liabilities:    
Accounts receivable (859) (1,036)
Inventory (254) (566)
Prepaid expenses and other current and non-current assets 425 15
Accounts payable, accrued expenses, accrued payroll, accrued income taxes payable, and other current liabilities 1,396 2,620
Lease-related assets and liabilities (54) (128)
Net cash used in operating activities (2,915) (891)
Cash flows from investing activities    
Purchase of property and equipment (81) (35)
Net cash provided by (used in) investing activities (81) (35)
Cash flows from financing activities    
Payment of long-term debt   (625)
Net cash (used in) provided by financing activities   (625)
Net decrease in cash, cash equivalents, and restricted cash (2,996) (1,551)
Cash, cash equivalents, and restricted cash at beginning of period 4,608 5,222
Cash, cash equivalents, and restricted cash at end of period 1,612 3,671
Reconciliation to amounts on consolidated balance sheets:    
Cash and cash equivalents 1,612 3,063
Restricted cash   608
Total cash, cash equivalents, and restricted cash 1,612 3,671
Supplemental disclosure of cash flow information:    
Cash paid during the period for interest   $ 623
Cash paid during the period for income taxes $ 16