|
Related Party Transactions (Details) (USD $)
|
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Related Party Transactions | |||
| Revenue from product sales | $ 4,394,000 | $ 6,030,000 | $ 3,607,000 |
| Accounts receivable | 600,000 | 1,500,000 | |
|
Investors | Company 1
|
|||
| Related Party Transactions | |||
| Revenue from product sales | 2,889,000 | 2,142,000 | 995,000 |
|
Investors | Company 2
|
|||
| Related Party Transactions | |||
| Revenue from product sales | 950,000 | 1,290,000 | 2,134,000 |
|
Investors | Company 3
|
|||
| Related Party Transactions | |||
| Revenue from product sales | 426,000 | 791,000 | 478,000 |
|
Investors | Company 4
|
|||
| Related Party Transactions | |||
| Revenue from product sales | $ 129,000 | $ 1,807,000 | |