INCOME TAXES: - Reconciliation of income tax (expense) benefit (Details) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| INCOME TAXES: | |||
| Federal statutory rate | 21.00% | 21.00% | 21.00% |
| State taxes, net of federal benefit | (2.00%) | (9.50%) | (4.40%) |
| Foreign rate differential | 2.30% | 3.30% | 3.70% |
| Permanent items | (6.50%) | (2.00%) | (2.00%) |
| Rate change and true-up | 11.80% | 17.00% | 8.00% |
| Change in valuation allowance | (25.50%) | (21.60%) | (22.70%) |
| R&D credit | 1.70% | 4.40% | 1.80% |
| Effective income tax rate | 2.80% | 12.60% | 5.40% |