| Dec 31, 2011 | Dec 31, 2012 | Dec 31, 2013 | Dec 31, 2014 | Dec 31, 2015 | Dec 31, 2016 | Dec 31, 2017 | Dec 31, 2018 | Dec 31, 2019 | Dec 31, 2020 | Dec 31, 2021 | Dec 31, 2022 | Dec 31, 2023 | Dec 31, 2024 |
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| Cash and cash equivalents | - | - | - | - | - | - | - | 2 | 4 | 18 | 7 | 5 | 10 | 18 |
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| Trade receivables, net of allowance of $146 and $116, respectively | - | 3 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | - | 3 | 3 | 4 |
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| Inventories | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 |
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| Equipment financing receivables, net of allowance of $69 and $56, respectively | - | - | - | - | - | - | - | - | - | - | 0 | 1 | - | 1 |
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| Contract costs | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 | 2 |
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| Prepaid expenses | - | - | - | - | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
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| Income tax receivable | - | - | - | - | - | - | - | 0 | 0 | 0 | - | - | - | 0 |
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| Other current assets | - | - | - | - | 0 | 0 | 0 | - | - | - | - | 1 | 0 | 0 |
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| Total current assets | 22 | 13 | 6 | 5 | 3 | 2 | 3 | 3 | 6 | 20 | 12 | 12 | 17 | 27 |
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| Contract assets, net of allowance of $127 and $85, respectively | - | - | - | - | - | - | - | - | - | - | - | - | - | 0 |
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| Long-term equipment financing receivables, net of allowance of $157 and $115, respectively | - | - | - | - | - | - | - | - | - | - | - | - | - | 2 |
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| Property and equipment, net | 4 | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 3 | 3 | 1 | 0 |
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| Operating lease right-of-use assets | - | - | - | - | - | - | - | - | 0 | 0 | 1 | 1 | 1 | 1 |
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| Intangible assets, net | - | - | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 22 | 27 | 24 | 21 |
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| Goodwill | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | - | 9 | 9 | 9 |
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| Contract costs, net of current portion | - | - | - | - | - | - | - | 0 | 0 | 1 | 1 | 1 | 2 | 3 |
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| Other long-term assets | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
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| Total Assets | 33 | 18 | 10 | 8 | 6 | 4 | 3 | 5 | 8 | 31 | 77 | 56 | 56 | 65 |
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| Accounts payable | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 |
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| Accrued expenses | 2 | 3 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 5 | 5 | 6 | 7 |
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| Finance leases | - | - | - | - | - | - | - | - | 0 | 0 | 0 | 0 | 0 | 0 |
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| Notes payable | - | - | - | - | 0 | 0 | 0 | 0 | - | 0 | 2 | 0 | 0 | 0 |
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| Operating lease liabilities | - | - | - | - | - | - | - | - | 0 | 0 | 0 | 0 | 1 | 0 |
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| Income tax payable | - | - | - | - | - | - | - | - | - | - | - | 0 | 0 | 0 |
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| Contract liabilities | - | - | - | - | - | - | - | 1 | 1 | 1 | - | - | 2 | 3 |
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| Total current liabilities | 13 | 7 | 3 | 3 | 2 | 2 | 2 | 2 | 3 | 3 | 11 | 10 | 10 | 12 |
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| Contract liabilities, net of current portion | - | - | - | - | - | - | - | 0 | 0 | 0 | - | 0 | 0 | 0 |
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| Finance leases, net of current portion | - | - | - | - | - | - | - | - | 0 | 0 | 0 | 0 | 0 | 0 |
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| Notes payable, net of current portion | - | - | - | - | 1 | 1 | 0 | - | - | 2 | - | 3 | 1 | 0 |
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| Operating lease liabilities, net of current portion | - | - | - | - | - | - | - | - | 0 | - | 0 | 1 | 0 | 1 |
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| Total liabilities | 20 | 7 | 3 | 3 | 3 | 3 | 2 | 3 | 3 | 5 | 11 | 14 | 12 | 14 |
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| Preferred stock, par value $0.001 per share - authorized 5,000,000 shares; none issued | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
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| Common stock, par value $0.001 per share - authorized 50,000,000 shares, 27,621,557 shares issued and outstanding as of December 31, 2024 and 26,130,218 shares issued and outstanding as of December 31, 2023 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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| Additional paid-in capital | 49 | 50 | 51 | 55 | 58 | 59 | 61 | 61 | 62 | 76 | 118 | 129 | 133 | 138 |
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| Accumulated deficit | -36 | -40 | -45 | -51 | -55 | -58 | -59 | -59 | -58 | -50 | -53 | -88 | -88 | -87 |
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| Accumulated other comprehensive income | - | - | - | - | - | - | - | - | - | - | 0 | 0 | 0 | 0 |
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| Total stockholders' equity | 13 | 10 | 7 | 5 | 2 | 1 | 1 | 2 | 4 | 26 | - | 41 | 45 | 51 |
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| Total Liabilities and Stockholders' Equity | 33 | 18 | 10 | 8 | 6 | 4 | 3 | 5 | 8 | 31 | 77 | 56 | 56 | 65 |
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