| 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 |
| REVENUES: | | | | | | | | |
| Revenues | 19.1 | 34.7 | 37.7 | 36.4 | 45.1 | 36.0 | 35.9 | 42.6 |
| Revenues growth | -57.7% | -3.9% | 5.0% | -14.5% | 2.8% | -25.2% | -31.3% | -9.6% |
| Cost of revenues | | | | | | | | |
| Gross margin | 4.1 | 7.3 | 7.7 | 5.5 | 6.9 | 4.2 | 2.8 | 6.1 |
| Gross margin | 21.2% | 21.0% | 20.4% | 15.1% | 15.3% | 11.7% | 7.9% | 14.3% |
| |
| OPERATING EXPENSES: | | | | | | | | |
| Sales and marketing | 2.4 | 2.5 | 2.6 | 2.8 | 3.0 | 3.1 | 3.5 | 3.4 |
| Research and development | 1.4 | 1.6 | 1.9 | 2.0 | 2.1 | 2.3 | 2.6 | 2.9 |
| General and administrative | 3.4 | 3.9 | 4.0 | 4.5 | 5.5 | 5.9 | 6.4 | 6.9 |
| Gain on sale of assets | | | -1.5 | -2.0 | -1.3 | -1.2 | -1.0 | |
| Total operating expenses | 9.7 | 12.9 | 15.5 | 27.2 | 27.2 | 25.6 | 24.6 | 13.2 |
| (Loss) income from operations | -2.0 | 0.5 | 0.6 | -2.1 | -2.7 | -6.2 | -9.0 | -7.1 |
| Operating margin | -10.3% | 1.4% | 1.7% | -5.8% | -6.0% | -17.3% | -25.0% | -16.7% |
| Interest expense | -0.1 | -0.1 | -0.1 | -0.1 | -0.1 | -0.1 | -0.1 | -0.1 |
| Other (expense) income | -0.4 | -1.0 | -0.5 | 0.2 | 0.3 | 0.5 | 0.3 | -0.1 |
| (Loss) income before provision for income taxes | -2.4 | -0.6 | 0.1 | -1.9 | -2.5 | -5.8 | -8.8 | |
| Provision for income taxes | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.2 | 0.6 |
| NET (LOSS) INCOME | -2.4 | -0.6 | 0.1 | -1.9 | -2.5 | -5.9 | -8.9 | -8.0 |
| |
| Other comprehensive (loss) income | | | | | | | | |
| Change in cumulative translation adjustment | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| COMPREHENSIVE (LOSS) INCOME | -2.5 | -0.5 | 0.1 | -1.9 | -2.5 | -6.0 | -9.0 | -8.0 |
| Net (loss) income applicable to common shareholders (Note3) | -2.4 | -0.6 | 0.1 | -1.9 | -2.5 | -5.9 | -8.9 | -8.0 |
| |
| Net (loss) income per common share | | | | | | | | |
| Basic and diluted (in dollars per share) | ($0.10) | ($0.02) | $0.01 | ($0.08) | ($0.11) | ($0.26) | ($0.39) | ($0.34) |
| |
| Weighted average shares used in calculating: | | | | | | | | |
| Basic earnings per share (in shares) | 23.8 | 23.7 | 23.7 | 23.6 | 23.4 | 23.3 | 23.2 | 23.1 |
| Diluted earnings per share (in shares) | 23.8 | 23.7 | 23.7 | 23.6 | 23.4 | 23.3 | 17.4 | |