Quarterly report pursuant to Section 13 or 15(d)

Segment Reporting - Schedule of Operations by Reportable Segment (Details)

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Segment Reporting - Schedule of Operations by Reportable Segment (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Segment Reporting Information [Line Items]        
Revenues $ 4,648 $ 37 $ 5,330 $ 59
Cost of revenue, excluding depreciation and amortization (4,039) (23) (5,819) (54)
Depreciation and amortization (219) (81) (286) (263)
Research and development (1,111) (490) (1,867) (1,031)
General and administrative (4,187) (4,328) (5,970) (7,722)
Loss from operations (4,908) (4,885) (8,612) (9,011)
Interest income (expense) (145) (2,508) (1,005) (4,525)
Loss on extinguishment of warrant liability 0 0 0 (504)
Loss on extinguishment of debt 0 (2,345) 0 (2,345)
Gain on issuance of convertible notes 0 0 0 64
Change in fair value of warrants 23 2,130 0 7,736
Other income (expense), net 1 (28) (24) (1,234)
Change in fair value of notes 0 (6,883) 0 (7,000)
Total other income (expense) (121) (9,634) (1,029) (7,808)
Loss before income taxes (5,029) (14,519) (9,641) (16,819)
Film        
Segment Reporting Information [Line Items]        
Revenues 0 0 0 0
Fiber Optics        
Segment Reporting Information [Line Items]        
Revenues 4,648 37 5,330 59
Operating Segments | Film        
Segment Reporting Information [Line Items]        
Revenues 0 0 0 0
Cost of revenue, excluding depreciation and amortization 0 0 0 0
Depreciation and amortization (141) (61) (283) (181)
Research and development (1,111) (490) (1,867) (1,031)
General and administrative 0 0 0 (3,504)
Loss from operations (1,252) (551) (2,150) (4,716)
Interest income (expense) 0 0 0 0
Loss on extinguishment of warrant liability       0
Loss on extinguishment of debt   0   0
Gain on issuance of convertible notes       0
Change in fair value of warrants 0 0   0
Other income (expense), net 0 0 0 0
Change in fair value of notes   0   0
Total other income (expense) 0 0 0 0
Loss before income taxes (1,252) (551) (2,150) (4,716)
Operating Segments | Fiber Optics        
Segment Reporting Information [Line Items]        
Revenues 4,648 37 5,330 59
Cost of revenue, excluding depreciation and amortization (4,039) (23) (5,819) (54)
Depreciation and amortization (78) (20) (3) (82)
Research and development 0 0 0 0
General and administrative (616) (2,408) (750) (2,936)
Loss from operations (85) (2,414) (1,242) (3,013)
Interest income (expense) (154) (3) (163) (10)
Loss on extinguishment of warrant liability       0
Loss on extinguishment of debt   0   0
Gain on issuance of convertible notes       0
Change in fair value of warrants 0 0   0
Other income (expense), net 0 0 0 0
Change in fair value of notes   0   0
Total other income (expense) (154) (3) (163) (10)
Loss before income taxes (239) (2,417) (1,405) (3,023)
Corporate and Other        
Segment Reporting Information [Line Items]        
Revenues 0 0 0 0
Cost of revenue, excluding depreciation and amortization 0 0 0 0
Depreciation and amortization 0 0 0 0
Research and development 0 0 0 0
General and administrative (3,571) (1,920) (5,220) (1,282)
Loss from operations (3,571) (1,920) (5,220) (1,282)
Interest income (expense) 9 (2,505) (842) (4,515)
Loss on extinguishment of warrant liability       (504)
Loss on extinguishment of debt   (2,345)   (2,345)
Gain on issuance of convertible notes       64
Change in fair value of warrants 23 2,130   7,736
Other income (expense), net 1 (28) (24) (1,234)
Change in fair value of notes   (6,883)   (7,000)
Total other income (expense) 33 (9,631) (866) (7,798)
Loss before income taxes $ (3,538) $ (11,551) $ (6,086) $ (9,080)