| Revenue | 12/31/2018 | 12/31/2017 | 12/31/2016 | 12/31/2015 |
| Total Revenue | 7,785,000 | 7,447,000 | 7,517,000 | 7,669,000 |
| Cost of Revenue | 3,514,000 | 3,246,000 | 3,354,000 | 3,651,000 |
| Gross Profit | 4,271,000 | 4,201,000 | 4,163,000 | 4,018,000 |
| Operating Expenses |
| Research Development | - | - | - | - |
| Selling General and Administrative | -257,000 | -167,000 | -112,000 | -112,000 |
| Non Recurring | - | - | - | - |
| Others | 312,000 | 292,000 | 301,000 | 299,000 |
| Total Operating Expenses | 4,663,000 | 4,379,000 | 4,469,000 | 4,833,000 |
| Operating Income or Loss | 3,122,000 | 3,068,000 | 3,048,000 | 2,836,000 |
| Income from Continuing Operations |
| Total Other Income/Expenses Net | -837,000 | -1,156,000 | -498,000 | -768,000 |
| Earnings Before Interest and Taxes | 3,122,000 | 3,068,000 | 3,048,000 | 2,836,000 |
| Interest Expense | -963,000 | -901,000 | -888,000 | -871,000 |
| Income Before Tax | 2,285,000 | 1,912,000 | 2,550,000 | 2,068,000 |
| Income Tax Expense | 458,000 | 784,000 | 648,000 | 465,000 |
| Minority Interest | - | - | - | - |
| Net Income From Continuing Ops | 1,827,000 | 1,128,000 | 1,902,000 | 1,603,000 |
| Non-recurring Events |
| Discontinued Operations | - | - | - | -921,000 |
| Extraordinary Items | - | - | - | - |
| Effect Of Accounting Changes | - | - | - | - |
| Other Items | - | - | - | - |
| Net Income |
| Net Income | 1,827,000 | 1,128,000 | 1,902,000 | 682,000 |
| Preferred Stock And Other Adjustments | - | - | - | - |
| Net Income Applicable To Common Shares | 1,825,000 | 1,126,000 | 1,896,000 | 680,000 |