| In millions, except per share items | Jun-30-18 | Mar-31-18 | Dec-31-17 | Sep-30-17 | Jun-30-17 | Mar-31-17 | Dec-31-16 | Sep-30-16 |
| | 10-Q | 10-Q | 10-K | 10-Q | 10-Q | 10-Q | 10-K | 10-Q |
| OPERATING ACTIVITIES: | | | | | | | | |
| Net loss | -2.4 | -0.6 | 0.1 | -1.9 | -2.5 | -5.9 | -8.9 | -8.0 |
| Adjustments to reconcile net loss to net cash used in operating activities: | | | | | | | | |
| Provision for inventory obsolescence | 0.0 | 0.0 | 0.0 | | 0.1 | | 0.3 | 0.2 |
| Provision for doubtful accounts | 0.0 | | | | | | | |
| Stock-based compensation expense | 0.1 | 0.1 | 0.2 | 0.2 | 0.3 | 0.4 | 0.5 | 0.7 |
| Depreciation and amortization | 0.5 | 0.5 | 0.5 | 0.5 | 0.6 | 0.6 | 0.7 | 0.7 |
| Gain on sale of assets | | | -1.5 | -1.8 | -1.1 | -0.9 | -0.6 | 0.4 |
| Deferred income taxes | 0.0 | 0.0 | 0.0 | -0.1 | -0.1 | -0.1 | -0.1 | 0.0 |
| Changes in operating assets and liabilities: | | | | | | | | |
| Accounts receivable and unbilled revenue | 3.9 | 0.9 | -0.6 | -1.5 | -4.0 | -1.5 | 0.6 | 3.4 |
| Other current and noncurrent assets | -0.5 | -0.2 | -0.2 | 2.2 | 2.2 | 1.8 | 2.0 | 0.0 |
| Inventories | 1.4 | 3.6 | 1.7 | 1.2 | 2.0 | 3.0 | 1.8 | 6.3 |
| Deferred costs | 0.2 | | 0.2 | -0.9 | 4.0 | 2.3 | 6.0 | 3.6 |
| Accounts payable | -1.2 | 1.9 | 3.5 | 3.2 | 3.6 | -0.1 | -0.5 | -2.6 |
| Accrued expenses | -1.9 | -1.2 | -1.0 | -1.1 | 0.0 | -0.3 | -0.7 | -1.7 |
| Customer deposits | -4.4 | -10.2 | -6.7 | -1.2 | -4.7 | 1.6 | -1.7 | -3.2 |
| Deferred revenue and other short term liabilities | -4.4 | -10.2 | -6.7 | -1.2 | -4.7 | 1.6 | -1.7 | -3.2 |
| Net cash used in operating activities | -7.0 | -6.5 | -5.4 | -2.7 | -2.4 | -1.8 | -0.8 | |
| |
| INVESTING ACTIVITIES: | | | | | | | | |
| Proceeds from sale of assets | | 1.0 | | | 2.6 | 2.1 | | |
| Purchases of property and equipment | | | -0.3 | | -0.4 | -0.3 | -0.3 | -0.2 |
| Net cash provided by investing activities | | 3.1 | 4.6 | 6.0 | 3.5 | 3.1 | 1.2 | |
| |
| FINANCING ACTIVITIES: | | | | | | | | |
| Proceeds (payments) on revolving line of credit, net of borrowings | -0.9 | -0.4 | -0.1 | 0.0 | -0.6 | -1.0 | -1.3 | |
| Net cash (used in) provided by financing activities | -0.6 | -0.1 | 0.2 | 0.3 | -1.0 | -1.0 | -1.3 | |
| Effect of exchange rate change on cash | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Change in cash and cash equivalents | -5.8 | -4.5 | -1.6 | 2.6 | 3.2 | 2.6 | -0.9 | -2.5 |
| |
| Cash and cash equivalent — Beginning of Period | | | | | | | | |
| Cash and cash equivalent — End of Period | | | | | | | | |
| SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION: | | | | | | | | |
| Cash paid for interest | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.1 |
| Cash paid for income taxes | 0.0 | | 0.0 | | 0.0 | 0.0 | 0.0 | |