| Revenue | 12/31/2018 | 12/31/2017 | 12/31/2016 | 12/31/2015 |
| Total Revenue | 12,657,000 | 12,320,000 | 11,869,000 | 11,524,000 |
| Cost of Revenue | 8,203,000 | 7,717,000 | 7,425,000 | 7,256,000 |
| Gross Profit | 4,454,000 | 4,603,000 | 4,444,000 | 4,268,000 |
| Operating Expenses |
| Research Development | - | - | - | - |
| Selling General and Administrative | - | - | - | - |
| Non Recurring | - | - | - | - |
| Others | 388,000 | 368,000 | 354,000 | 336,000 |
| Total Operating Expenses | 10,462,000 | 10,126,000 | 9,786,000 | 9,511,000 |
| Operating Income or Loss | 2,195,000 | 2,194,000 | 2,083,000 | 2,013,000 |
| Income from Continuing Operations |
| Total Other Income/Expenses Net | -3,405,000 | -1,369,000 | -616,000 | -558,000 |
| Earnings Before Interest and Taxes | 2,195,000 | 2,194,000 | 2,083,000 | 2,013,000 |
| Interest Expense | -855,000 | -763,000 | -704,000 | -668,000 |
| Income Before Tax | -1,210,000 | 825,000 | 1,467,000 | 1,455,000 |
| Income Tax Expense | -739,000 | 281,000 | 177,000 | 486,000 |
| Minority Interest | 2,193,000 | 2,214,000 | 2,196,000 | 2,026,000 |
| Net Income From Continuing Ops | -471,000 | 544,000 | 1,290,000 | 969,000 |
| Non-recurring Events |
| Discontinued Operations | 34,000 | 34,000 | 12,000 | 35,000 |
| Extraordinary Items | - | - | - | - |
| Effect Of Accounting Changes | - | - | - | - |
| Other Items | - | - | - | - |
| Net Income |
| Net Income | -423,000 | 565,000 | 1,311,000 | 1,020,000 |
| Preferred Stock And Other Adjustments | - | - | - | - |
| Net Income Applicable To Common Shares | -423,000 | 565,000 | 1,311,000 | 1,019,000 |