| In millions, except per share items | Dec-31-12 | Dec-31-11 | Dec-31-10 | Dec-31-09 | Dec-31-08 | Dec-31-07 | Dec-31-06 | Dec-31-05 |
| | 10-K | 10-K | 10-K | 10-K/A | 10-K | 10-K | 10-K | 10-K |
| CASH FLOWS FROM OPERATING ACTIVITIES: | | | | | | | | |
| Net Income (Loss) | -34.3 | -7.1 | -32.5 | -13.4 | | | | |
| Adjustments to reconcile net income (loss) to net cash used in operating activities: | | | | | | | | |
| Amortization of deferred revenue | -2.9 | -10.9 | -1.3 | | | | | |
| Amortization of deferred credit | -0.1 | -0.1 | | | | | | |
| Amortization of debt discounts and deferred financing fees | 5.2 | 2.9 | 1.6 | | | | | |
| Inventory reserves | 0.1 | | 0.7 | | | | | |
| Non-cash equity compensation | 1.2 | 1.3 | 1.1 | | | | | |
| Depreciation and amortization of long-lived assets | -2.1 | -10.2 | -0.4 | | | | | |
| Loss on investment in Tarsa | | | | | | | | |
| Changes in operating assets and liabilities: | | | | | | | | |
| (Increase) decrease in accounts receivable | 2.8 | -1.1 | 0.5 | | | | | |
| (Increase) decrease in inventory | 1.2 | 1.1 | 1.9 | | | | | |
| Decrease in other assets | 0.5 | -0.2 | -0.6 | | | | | |
| Decrease in accounts payable and accrued expenses | 7.5 | 7.2 | 6.1 | 0.5 | | | | |
| Increase in deferred revenue | 2.3 | 4.8 | 4.0 | 0.2 | | | | |
| Increase in accrued interest | 8.6 | 7.6 | 5.6 | | | | | |
| Increase in deferred compensation | 0.0 | 0.0 | 0.0 | 0.1 | | | | |
| Net cash used in operating activities | -3.2 | -6.8 | -1.7 | -11.3 | | | | |
| CASH FLOWS FROM INVESTING ACTIVITIES: | | | | | | | | |
| Investment in Tarsa | -0.7 | -2.8 | | | | | | |
| Capital expenditures | -0.2 | -0.7 | -0.1 | 0.2 | | | | |
| Increase in patents and other intangibles | -0.1 | -0.3 | -0.5 | | | | | |
| Net cash used in investing activities | -1.1 | -2.7 | -0.7 | 3.0 | | | | |
| |
| CASH FLOWS FROM FINANCING ACTIVITIES: | | | | | | | | |
| Repayment of capital lease | -0.1 | | | | | | | |
| Proceeds from exercise of stock options | 0.0 | 0.4 | 0.1 | 0.3 | | | | |
| Net cash used in financing activities | 3.4 | 1.9 | 9.7 | 4.6 | | | | |
| Net decrease in cash and cash equivalents | -0.9 | -7.5 | 7.3 | -3.7 | | | | |
| Cash and cash equivalents at beginning of period | 4.7 | 12.2 | 4.9 | 8.6 | | | | |
| Cash and cash equivalents at end of period | 3.8 | 4.7 | 12.2 | 4.9 | | | | |
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| SUPPLEMENTAL CASH FLOW INFORMATION | | | | | | | | |
| Non-cash investing and financing activities: | | | | | | | | |
| Purchase of equipment through capital lease | | | | | | | | |
| Cash payments: | | | | | | | | |