v3.3.1.900

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%

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