Summary of Significant Accounting Policies (Details) |
Apr. 20, 2018 |
Feb. 16, 2018 |
|---|---|---|
| ZS [Member] | ||
| Summary of Significant Accounting Policies (Details) [Line Items] | ||
| Ownership percentage | 100.00% | |
| ZBS [Member] | ||
| Summary of Significant Accounting Policies (Details) [Line Items] | ||
| Ownership percentage | 85.00% | |
| ZCS [Member] | ||
| Summary of Significant Accounting Policies (Details) [Line Items] | ||
| Ownership percentage | 85.00% |