| In millions, except per share items | Dec-31-13 | Sep-30-13 | Jun-30-13 | Mar-31-13 | Dec-31-12 | Sep-30-12 | Jun-30-12 | Mar-31-12 |
| | 10-Q | 10-Q | 10-K | 10-Q | 10-Q | 10-Q | 10-K | 10-Q |
| CASH FLOWS FROM OPERATING ACTIVITIES: | | | | | | | | |
| Net income | 2.8 | 3.0 | | 5.3 | 3.5 | 2.9 | | 2.0 |
| Adjustments to reconcile net income to net cash from operating activities: | | | | | | | | |
| Depreciation | 1.8 | 1.8 | | | 1.9 | 1.9 | | 2.0 |
| Gain on disposal of fixed assets | -0.6 | | | | | | | |
| Amortization | 0.2 | 0.3 | | | 0.3 | 0.4 | | 0.5 |
| Deferred income taxes | -0.2 | 0.6 | | | 0.6 | 0.1 | | -0.2 |
| Equity-based compensation | 0.9 | 0.9 | | | 1.0 | 1.1 | | 0.9 |
| Changes in operating assets and liabilities: | | | | | | | | |
| Receivables | 0.2 | 0.3 | | | 1.1 | -3.9 | | -1.4 |
| Inventories | -0.9 | -1.3 | | | -1.3 | -0.4 | | -1.1 |
| Prepaid expenses and other assets | 0.5 | 0.0 | | | -1.4 | 0.4 | | 0.6 |
| Accounts payable | 3.6 | -0.7 | | | -1.1 | -1.0 | | -2.6 |
| Accrued expenses | 0.5 | -1.6 | | | -0.4 | 0.7 | | 1.0 |
| Customer advance payments | -0.5 | 0.0 | | | 0.0 | -0.1 | | 0.8 |
| Other liabilities | -0.2 | 0.1 | | | 0.7 | 0.1 | | 0.0 |
| Pension and postretirement benefit obligation | -0.2 | 0.1 | | | 0.0 | 0.1 | | -0.1 |
| Net cash provided by operating activities | 7.9 | 3.5 | | 5.3 | 4.9 | 2.1 | | 2.3 |
| |
| CASH FLOWS FROM INVESTING ACTIVITIES: | | | | | | | | |
| Capital expenditures | -1.3 | -2.5 | | | -0.9 | -1.3 | | -1.4 |
| Proceeds from sale of property, plant, and equipment | 0.6 | | | | 5.0 | 0.2 | | |
| Purchase of Cellular Machines LLC | | -0.4 | | | | | | |
| Maturities and sales of held to maturity securities | 9.2 | | | | 9.1 | | | 3.5 |
| Net cash provided by investing activities | 6.5 | -0.9 | | | 7.8 | 4.3 | | -2.0 |
| |
| CASH FLOWS FROM FINANCING ACTIVITIES: | | | | | | | | |
| Proceeds from long-term debt obligation | | | | | | 8.0 | | |
| Stock options exercised | 2.4 | 0.4 | | | 0.1 | 1.4 | | 0.0 |
| Excess tax benefit | 0.2 | 0.4 | | | 0.1 | 0.5 | | 0.0 |
| Purchase of treasury stock | -1.2 | -1.5 | | | -11.2 | -8.9 | | -1.1 |
| Net cash provided by (used in) financing activities | 1.4 | -0.8 | | | -11.0 | 0.9 | | -1.1 |
| Effect of exchange rates on cash | 0.1 | 0.1 | | | 0.0 | 0.0 | | 0.1 |
| Net increase in cash and cash equivalents | 15.9 | 1.9 | | | 1.7 | 7.2 | | -0.6 |
| Cash and cash equivalents, beginning of period | | 44.3 | | | | 21.0 | | |
| Cash and cash equivalents, end of period | 15.9 | 46.2 | | 31.8 | 1.7 | 28.3 | | -0.6 |
| |
| Supplemental disclosures of cash flow information: | | | | | | | | |
| Cash paid during the period for: | | | | | | | | |
| Interest | | 0.0 | | | 0.1 | 0.0 | | 0.0 |
| Income tax payments, net | 1.4 | 0.4 | | | 2.5 | | | 0.0 |