| Segment Information (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | |
|---|---|---|
| Mar. 31, 2014 | Mar. 31, 2013 | |
| Segment Reporting Information [Line Items] | ||
| Revenues | $ 32,778 | $ 42,923 | 
| Operating (loss) income | (1,497) | 2,253 | 
| Capital expenditures | 514 | 445 | 
| Depreciation expense | 457 | 288 | 
| Sales Services [Member] | ||
| Segment Reporting Information [Line Items] | ||
| Revenues | 28,795 | 38,225 | 
| Operating (loss) income | 50 | 2,364 | 
| Capital expenditures | 514 | 169 | 
| Depreciation expense | 207 | 234 | 
| Marketing Services [Member] | ||
| Segment Reporting Information [Line Items] | ||
| Revenues | 1,003 | 1,541 | 
| Operating (loss) income | (1,323) | (683) | 
| Capital expenditures | 0 | 276 | 
| Depreciation expense | 229 | 51 | 
| Product Commercialization Services [Member] | ||
| Segment Reporting Information [Line Items] | ||
| Revenues | 2,980 | 3,157 | 
| Operating (loss) income | (224) | 572 | 
| Capital expenditures | 0 | 0 | 
| Depreciation expense | $ 21 | $ 3 |