Summary of Significant Accounting Policies (Concentration) (Details) - customer |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
|
| Sales | Customer | |||
| Risk and Uncertainties | |||
| Number of customers | 0 | 0 | 2 |
| Sales | Customer | Quest | |||
| Risk and Uncertainties | |||
| Concentration risk (as a percent) | 16.00% | ||
| Sales | Customer | Progenity | |||
| Risk and Uncertainties | |||
| Concentration risk (as a percent) | 12.00% | ||
| Accounts Receivable | Credit | |||
| Risk and Uncertainties | |||
| Number of customers | 0 | 0 | 2 |
| Accounts Receivable | Credit | Customer one | |||
| Risk and Uncertainties | |||
| Concentration risk (as a percent) | 37.00% | ||
| Accounts Receivable | Credit | Customer two | |||
| Risk and Uncertainties | |||
| Concentration risk (as a percent) | 18.00% | ||