|
Concentration Risk (Details) (Customer Concentration Risk [Member])
|
3 Months Ended | 9 Months Ended | ||||
|---|---|---|---|---|---|---|
|
Sep. 30, 2012
Sales [Member]
|
Sep. 30, 2011
Sales [Member]
|
Sep. 30, 2012
Sales [Member]
|
Sep. 30, 2011
Sales [Member]
|
Sep. 30, 2012
Accounts Receivable [Member]
|
Dec. 31, 2011
Accounts Receivable [Member]
|
|
| Concentration Risk [Line Items] | ||||||
| Concentration Risk, Percentage, Period | 24.00% | 39.00% | 35.00% | 40.00% | ||
| Concentration Risk, Percentage | 10.00% | 16.00% | ||||