| Period Ending | 12/31/2018 | 12/31/2017 | 12/31/2016 | 12/31/2015 |
| Current Assets |
| Cash And Cash Equivalents | 8,926,000 | 6,006,000 | 8,555,000 | 7,309,000 |
| Short Term Investments | 7,038,000 | 14,669,000 | 13,646,000 | 12,591,000 |
| Net Receivables | 3,396,000 | 3,667,000 | 3,856,000 | 3,941,000 |
| Inventory | 2,766,000 | 2,655,000 | 2,675,000 | 2,902,000 |
| Other Current Assets | 6,659,000 | 7,646,000 | 3,592,000 | 4,748,000 |
| Total Current Assets | 30,634,000 | 36,545,000 | 34,010,000 | 33,395,000 |
| Long Term Investments | 21,533,000 | 23,281,000 | 18,569,000 | 16,868,000 |
| Property, plant and equipment | 8,232,000 | 8,203,000 | 10,635,000 | 12,571,000 |
| Goodwill | 10,263,000 | 9,401,000 | 10,629,000 | 11,289,000 |
| Intangible Assets | 7,007,000 | 7,235,000 | 10,499,000 | 12,843,000 |
| Accumulated Amortization | - | - | - | - |
| Other Assets | 5,547,000 | 3,231,000 | 2,928,000 | 3,030,000 |
| Deferred Long Term Asset Charges | 2,667,000 | 330,000 | 326,000 | 360,000 |
| Total Assets | 83,216,000 | 87,896,000 | 87,270,000 | 89,996,000 |
| Current Liabilities |
| Accounts Payable | 2,498,000 | 2,288,000 | 2,682,000 | 2,795,000 |
| Short/Current Long Term Debt | 4,997,000 | 3,298,000 | 3,527,000 | 2,729,000 |
| Other Current Liabilities | 2,186,000 | 2,023,000 | 1,817,000 | 2,333,000 |
| Total Current Liabilities | 29,223,000 | 27,194,000 | 26,532,000 | 26,929,000 |
| Long Term Debt | 25,404,000 | 31,221,000 | 29,732,000 | 28,543,000 |
| Other Liabilities | 9,531,000 | 10,504,000 | 7,786,000 | 8,760,000 |
| Deferred Long Term Liability Charges | - | - | - | - |
| Minority Interest | 2,077,000 | 1,905,000 | 158,000 | 210,000 |
| Negative Goodwill | - | - | - | - |
| Total Liabilities | 64,158,000 | 68,919,000 | 64,050,000 | 64,232,000 |
| Stockholders' Equity |
| Misc. Stocks Options Warrants | - | - | - | - |
| Redeemable Preferred Stock | - | - | - | - |
| Preferred Stock | - | - | - | - |
| Common Stock | 1,760,000 | 1,760,000 | 1,760,000 | 1,760,000 |
| Retained Earnings | 63,234,000 | 60,430,000 | 65,502,000 | 65,018,000 |
| Treasury Stock | -64,533,000 | -60,982,000 | -59,193,000 | -55,240,000 |
| Capital Surplus | 16,520,000 | 15,864,000 | 14,993,000 | 14,016,000 |
| Other Stockholder Equity | -12,814,000 | -10,305,000 | -11,205,000 | -10,174,000 |
| Total stockholders' equity | 16,981,000 | 17,072,000 | 23,062,000 | 25,554,000 |
| Net Tangible Assets | -289,000 | 436,000 | 1,934,000 | 1,422,000 |