| 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 |
---|
Net loss | - | - | - | - | - | - | - | -22 | -18 | -17 | -16 | -29 |
---|
Depreciation and amortization | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 |
---|
Provision for bad debts | - | 0 | 0 | 1 | 0 | -0 | 0 | 0 | 2 | 1 | -0 | 0 |
---|
Provision for sales returns | - | - | - | - | - | - | - | - | - | 0 | - | - |
---|
Inventory Write-down | - | 0 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | -1 | -0 | 1 |
---|
Inventory disposals and recoveries, net | - | - | - | - | - | - | - | - | - | -1 | 0 | -1 |
---|
Amortization of debt issuance costs | 0 | 0 | 0 | 0 | - | - | - | 0 | 0 | 0 | 0 | 1 |
---|
Patent litigation mark-to-market | - | - | - | - | - | - | - | - | - | - | 0 | - |
---|
Change in fair value of warrants | - | - | - | - | - | - | - | - | - | -6 | - | - |
---|
Issuance Of Restricted Shares | - | - | - | - | - | - | - | - | - | - | 0 | 0 |
---|
Issuance costs for common stock warrants | - | - | - | - | - | - | - | - | - | 2 | - | - |
---|
Stock-based compensation | 2 | 2 | 2 | 1 | - | 3 | 2 | 3 | 3 | 3 | 2 | 2 |
---|
Gain on debt forgiveness | -0 | - | - | - | - | - | - | - | - | - | 3 | - |
---|
Accounts receivable | 6 | 3 | -0 | -1 | 0 | 1 | 0 | 1 | -1 | -4 | 1 | 2 |
---|
Inventory | 5 | 0 | 1 | 2 | 1 | 2 | -0 | 0 | -1 | 1 | 1 | 6 |
---|
Prepaid expenses and other current assets | 1 | -0 | -0 | 0 | 0 | -0 | 0 | 0 | -0 | -1 | -0 | 1 |
---|
Accounts payable and accrued liabilities | 4 | -0 | -1 | 0 | -1 | 3 | -5 | 2 | -3 | -2 | 2 | 4 |
---|
Deferred revenue | - | - | - | - | - | - | - | -0 | 0 | -0 | 0 | -0 |
---|
Net cash and cash equivalents used in operating activities | -13 | -2 | -9 | - | - | - | - | -14 | -13 | -13 | -17 | -27 |
---|
Purchases of property, plant, and equipment | 0 | 1 | 1 | 0 | 2 | 1 | 1 | 1 | 0 | 0 | 1 | 4 |
---|
Net cash and cash equivalents used in investing activities | -0 | -1 | -1 | - | - | - | - | -1 | -0 | -0 | -1 | -4 |
---|
Proceeds from the sale of common stock | 17 | - | 5 | 51 | - | 10 | - | - | 9 | - | - | 6 |
---|
Proceeds From Sale Of Preferred Stock | - | - | - | - | - | - | - | - | - | 3 | - | - |
---|
Proceeds From Sale Of Common Stock Warrants | - | - | - | - | - | - | - | - | - | 15 | - | - |
---|
Payments of equity offering costs | - | - | - | - | - | - | - | 0 | - | 1 | 1 | - |
---|
Payment of July 2020 Warrant issuance costs | - | - | - | - | - | - | - | - | - | 2 | - | - |
---|
Borrowings on other long-term loans | - | - | - | - | - | - | - | - | - | 3 | - | - |
---|
Principal payment on term loan | - | - | - | - | - | - | - | - | - | 1 | - | 1 |
---|
Borrowings on credit facility | - | 17 | 35 | 17 | - | - | - | 4 | - | 3 | - | - |
---|
Payments of credit facility | - | 15 | 32 | 22 | - | - | - | 4 | - | 3 | - | - |
---|
Payments of debt issuance costs | - | 0 | 0 | 0 | - | - | - | 1 | 0 | 0 | 0 | - |
---|
Proceeds from Warrant Exercises | 0 | 0 | - | - | - | - | - | - | - | 0 | 17 | 0 |
---|
Proceeds from exercise of stock options | - | - | - | - | - | - | - | 0 | 0 | - | 0 | - |
---|
Net cash and cash equivalents provided by financing activities | 15 | 2 | 9 | - | - | - | - | 11 | 11 | 24 | 30 | 5 |
---|
Effect of exchange rate changes | - | - | - | - | - | - | - | - | - | - | - | -0 |
---|
Increase (decrease) in cash and cash equivalents | - | - | - | - | - | - | - | -4 | -2 | 12 | 12 | -26 |
---|
Cash paid for interest | - | - | - | - | - | - | - | 0 | 2 | 2 | 2 | 2 |
---|
Cash received for interest | - | - | - | - | - | - | - | - | - | 0 | 0 | 0 |
---|
Income Taxes Paid, Net | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
---|
Cash paid for operating leases | - | - | - | - | - | - | - | - | 1 | 0 | 0 | 0 |
---|
Non-cash settlement of liability | - | - | - | - | - | - | - | - | - | 0 | 1 | - |
---|
Non Cash Right Of Use Assets Obtained In Exchange For Lease Obligation | - | - | - | - | - | - | - | - | - | 2 | 0 | 1 |
---|
Equity financing costs in accounts payable | - | - | - | - | - | - | - | - | 0 | 0 | - | - |
---|
Dividends, Preferred Stock, Stock | - | - | - | - | - | - | - | - | - | 17 | 1 | 0 |
---|
Forgiveness of debt | - | - | - | - | - | - | - | - | - | 0 | - | - |
---|
Receivable From WarrantsExercised And Included In Prepaid And Other Current Assets | - | - | - | - | - | - | - | - | - | 1 | -1 | - |
---|
Debt Conversion, Converted Instrument, Amount | - | - | - | - | - | - | - | 1 | 0 | 0 | - | - |
---|