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Investments (Details) - Schedule of Investments - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
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Securrency, Inc.: |  |
Carrying value of investment | $ 9,684 | $ 35,721
Cost of investment | 8,341 | 35,725
Securrency, Inc. Series A convertible preferred stock [Member] |  |
Securrency, Inc.: |  |
Carrying value of investment |  | 8,488
Cost of investment |  | 8,112
Securrency, Inc. Series B convertible preferred stock [Member] |  |
Securrency, Inc.: |  |
Carrying value of investment |  | 5,500
Cost of investment |  | 5,500
Securrency Convertible Note [Member] |  |
Securrency, Inc.: |  |
Carrying value of investment |  | 14,500
Cost of investment |  | 15,000
Securrency Inc Sub Total [Member] |  |
Securrency, Inc.: |  |
Carrying value of investment |  | 28,488
Cost of investment |  | 28,612
Convertible note [Member] |  |
Securrency, Inc.: |  |
Carrying value of investment |  | 6,921
Cost of investment |  | 6,863
B-1 convertible preference shares [Member] |  |
Securrency, Inc.: |  |
Carrying value of investment | 9,684 |
Cost of investment | 8,091 |
Subtotal—Fnality International Limited [Member] |  |
Securrency, Inc.: |  |
Carrying value of investment | 9,684 | 6,921
Cost of investment | 8,091 | 6,863
Other Investments [Member] |  |
Securrency, Inc.: |  |
Carrying value of investment |  | 312
Cost of investment | $ 250 | $ 250

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