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Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Dec. 31, 2023
Sep. 30, 2023
Dec. 31, 2022
Sep. 30, 2022
Dec. 31, 2023
Dec. 31, 2022
Jun. 30, 2023
Cash flows from operating activities:              
Net loss $ (220) $ (8,120) $ (6,693) $ (701) $ (8,340) $ (7,394)  
Adjustments to reconcile net loss to cash used in operating activities:              
Depreciation, amortization and accretion         4,409 4,507  
Stock-based compensation expense 820   3,067   1,750 4,244  
Loss (gain) on derivative warrant liabilities 577   (1,403)   6,484 (3,594)  
Amortization of senior debt discount         302 315  
Inventory write-down 100   0   133 82  
Impairment expense 0   2,600   0 2,600  
Loss from contingent consideration 0   75   0 230  
Other noncash adjustments         (50) (33)  
Changes in operating assets and liabilities:              
Accounts receivable, net         (466) (3,834)  
Inventories         (1,140) (2,183)  
Prepaid expenses and other current assets         (321) (4,606)  
Accounts payable         (3,032) (838)  
Accrued liabilities         (3,927) (1,008)  
Other operating assets and liabilities, net         3,852 (76)  
Net cash used in operating activities         (346) (11,588)  
Cash flows from investing activities:              
Contingent consideration payment         0 (5)  
Other investing activities         (250) 42  
Net cash (used in) provided by investing activities         (250) 37  
Cash flows from financing activities:              
Proceeds from issuance of stock and warrants         86 11,573  
Net (payments made on) proceeds received from, short-term line of credit         (537) 3,616  
Payment made to fixed payment arrangement         (2,204) (2,433)  
Payment of stock issuance costs         (160) (1,000)  
Payments made to borrowings         (45) 0  
Other financing activities         0 (64)  
Net cash (used in) provided by financing activities         (2,860) 11,692  
Net change in cash and cash equivalents         (3,456) 141  
Cash and cash equivalents at beginning of period   $ 22,985   $ 19,360 22,985 19,360 $ 19,360
Cash and cash equivalents at end of period $ 19,529   $ 19,501   19,529 19,501 $ 22,985
Supplemental disclosure of cash flow information:              
Cash paid for interest         2,170 2,021  
Cash paid for income taxes         $ 432 $ 0