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GE Royalty Obligation (Details) | 6 Months Ended
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Jun. 30, 2017 USD ($)
Tier 1 | Minimum [Member] |
Net Sales in Contract Year | $ 0
Percentage of the Contract Year Net Sales owed to GE | 7.00%
Tier 1 | Maximum [Member] |
Net Sales in Contract Year | $ 50,000,000
Tier 2 | Minimum [Member] |
Net Sales in Contract Year | $ 50,000,000
Percentage of the Contract Year Net Sales owed to GE | 6.00%
Tier 2 | Maximum [Member] |
Net Sales in Contract Year | $ 100,000,000
Tier 3 | Minimum [Member] |
Net Sales in Contract Year | $ 100,000,000
Percentage of the Contract Year Net Sales owed to GE | 5.00%

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