Income Taxes: - Realization of Net Deferred Tax Assets (Details) - USD ($) |
3 Months Ended | 12 Months Ended | |
|---|---|---|---|
Mar. 31, 2021 |
Dec. 31, 2020 |
Dec. 26, 2020 |
|
| Amount removed from cumulative valuation allowance for deferred tax assets | $ 102,900 | $ 32,400 | |
| Hman Group holdings Inc and subsidiaries | |||
| Losses subject to full valuation allowance | $ 439,000 | ||