| Schedule of stock compensation expense |
| | | | | | | | | | | | | | | Three Months Ended | | Nine Months Ended | | | September 30, 2021 | | September 30, 2020 | | September 30, 2021 | | September 30, 2020 | Stock Compensation Expense – Director Restricted Stock | | $ | 13 | | $ | 12 | | $ | 38 | | $ | 38 | Stock Compensation Expense – Director Retainers Paid in Stock | | | 66 | | | 54 | | | 193 | | | 163 | Total Stock Compensation Expense (1) | | $ | 79 | | $ | 66 | | $ | 231 | | $ | 201 |
| (1) | Director retainers are issued through additional paid in capital in arrears. Therefore, the change in additional paid in capital during the nine months ended September 30, 2021 reported on the consolidated statements of stockholders’ equity does not agree to the total non-cash compensation reported on the consolidated statements of cash flows. |
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