| Net income | |
| Change in accounts receivable and inventory reserves | |
| Depreciation and amortization | |
| Change in cash surrender value of life insurance | -12.37K |
| Deferred income taxes | |
| Warranty reserve | -28.25K |
| Compensation expense related to stock options | |
| Accounts receivable | -8.36M |
| Notes receivable and other non-trade receivables | -1.56M |
| Inventories | -6.08M |
| Prepaid expenses and other | 487.46K |
| Accounts payable | 3M |
| Accrued expenses | 797.29K |
| Income taxes receivable/ payable | |
| Total adjustments | |
| Net cash provided by (used in) operating activities | |
| Proceeds from sale of investments | |
| Purchase of investments | |
| Capital expenditures | -911.04K |
| Net cash used in investing activities | |
| Payment of cash dividend | |
| Payment on capital leases | |
| Proceeds from exercise of stock options | |
| Net cash used in financing activities | |
| NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS | -3.15M |
| CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD | 5.35M |
| CASH AND CASH EQUIVALENTS AT END OF PERIOD | 2.19M |
| Interest | 61.77K |
| Income taxes | 400.33K |