Long-Term Debt and Credit Facility (Details) - USD ($) $ in Thousands |
Sep. 30, 2015 |
Dec. 31, 2014 |
|---|---|---|
| Long-term debt: | ||
| Long-term debt | $ 47,768 | $ 44,041 |
| Less amount reported as current | (27,727) | (18,643) |
| Long-term debt, less current portion | 20,041 | 25,398 |
| Revolving Credit Facility [Member] | ||
| Long-term debt: | ||
| Long-term debt | 20,584 | 8,500 |
| Term loan [Member] | ||
| Long-term debt: | ||
| Long-term debt | $ 27,184 | $ 35,541 |