| In millions, except per share items | Dec-31-14 | Dec-31-13 | Dec-31-12 | Dec-31-11 | Dec-31-10 | Dec-31-09 | Dec-31-08 | Dec-31-07 |
| | 10-K | 10-K | 10-K | 10-K | 10-K/A | 10-K/A | 10-K/A | 10-K/A |
| Revenues | | | | | | | | |
| Commissions | 5.3 | 4.2 | 6.2 | 13.4 | 14.9 | | | |
| Investment banking | 8.0 | 3.9 | 5.4 | 8.4 | 13.4 | | | |
| Advisory and other | 2.1 | 2.1 | 1.9 | 0.9 | 0.5 | | | |
| Operating expenses | | | | | | | | |
| Compensation and benefits | 12.4 | 8.0 | 12.1 | 17.9 | 19.1 | | | |
| Brokerage and clearing fees | 0.4 | 0.4 | 0.6 | 1.4 | 1.5 | | | |
| Professional services | 0.5 | 0.4 | 0.6 | 1.4 | 1.4 | | | |
| Occupancy and equipment | 1.1 | 1.4 | 1.7 | 1.9 | 1.9 | | | |
| Communications and technology | 0.8 | 0.7 | 1.1 | 2.0 | 2.0 | | | |
| Depreciation and amortization | 0.2 | 0.1 | 0.0 | 0.1 | 0.4 | | | |
| Travel and entertainment | 0.3 | 0.2 | 0.4 | 0.9 | 1.2 | | | |
| Cost of underwriting capital | 0.0 | 0.0 | 0.2 | 0.1 | 1.1 | | | |
| |
| Other | | | | | | | | |
| Total operating expenses | 16.9 | 13.2 | 18.3 | 28.2 | 36.0 | | | |
| Operating loss | -0.9 | -3.2 | -5.4 | -6.3 | -5.3 | | | |
| Interest expense | -0.4 | -0.3 | | | | | | |
| Amortization of debt discount | 0.0 | -0.1 | | | | | | |
| Loss on debt modification | -0.3 | -0.3 | | -1.2 | | | | |
| Net loss before income tax | -1.6 | -4.0 | -6.9 | -7.9 | -5.4 | | | |
| Income tax expense | | | -0.5 | 3.5 | 0.0 | | | |
| Net loss | -1.6 | -4.0 | -6.9 | -7.9 | -5.3 | | | |
| |
| Basic and diluted net loss per share (in dollar per share) | ($0.37) | ($1.32) | ($1.31) | ($2.70) | ($2.66) | | | |
| |
| Weighted average common shares outstanding: | | | | | | | | |
| Basic and diluted (in shares) | 4.4 | 3.0 | 5.2 | 2.9 | 2.2 | | | |