Summary of Significant Accounting Policies - Schedule of Concentration of Credit Risk (Details) |
3 Months Ended | 6 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|---|
Jun. 30, 2020 |
Jun. 30, 2019 |
Jun. 30, 2020 |
Jun. 30, 2019 |
Dec. 31, 2019 |
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| Clarios (successor of Johnson Controls Battery Group, Inc.) | Revenue | |||||
| Concentration risk | 0.00% | 59.00% | 100.00% | 59.00% | |
| Clarios (successor of Johnson Controls Battery Group, Inc.) | Trade Accounts Receivable | |||||
| Concentration risk | 0.00% | 100.00% | |||
| P. Kay Metals | Revenue | |||||
| Concentration risk | 0.00% | 38.00% | 0.00% | 38.00% | |
| P. Kay Metals | Trade Accounts Receivable | |||||
| Concentration risk | 0.00% | 0.00% | |||
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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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