Income Taxes (Schedule of Reconciliation of Effective Tax Rate) (Details) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
|
| Components of Income Tax Expense (Benefit), Continuing Operations [Abstract] | ||
| U.S. Federal income tax benefit at federal statutory rate | 21.00% | 21.00% |
| Change in valuation allowance | 67.00% | 9.00% |
| Permanent differences | 21.00% | (8.00%) |
| NOL Expiration - 1998 | (115.00%) | (21.00%) |
| Other, net | 6.00% | (1.00%) |
| Effective tax rate | ||