| Revenue | 12/31/2018 | 12/31/2017 | 12/31/2016 | 12/31/2015 |
| Total Revenue | 10,589,000 | 9,614,000 | 7,528,000 | 7,386,000 |
| Cost of Revenue | 8,109,000 | 7,115,000 | 5,059,000 | 5,109,000 |
| Gross Profit | 2,480,000 | 2,499,000 | 2,469,000 | 2,277,000 |
| Operating Expenses |
| Research Development | - | - | - | - |
| Selling General and Administrative | - | - | - | - |
| Non Recurring | - | - | - | - |
| Others | 406,000 | 391,000 | 384,000 | 374,000 |
| Total Operating Expenses | 9,758,000 | 8,542,000 | 6,569,000 | 6,453,000 |
| Operating Income or Loss | 831,000 | 1,072,000 | 959,000 | 933,000 |
| Income from Continuing Operations |
| Total Other Income/Expenses Net | -317,000 | -9,000 | -273,000 | -2,063,000 |
| Earnings Before Interest and Taxes | 831,000 | 1,072,000 | 959,000 | 933,000 |
| Interest Expense | -420,000 | -390,000 | -429,000 | -457,000 |
| Income Before Tax | 514,000 | 1,063,000 | 686,000 | -1,130,000 |
| Income Tax Expense | 146,000 | -729,000 | 254,000 | -438,000 |
| Minority Interest | - | - | - | - |
| Net Income From Continuing Ops | 368,000 | 1,792,000 | 432,000 | -692,000 |
| Non-recurring Events |
| Discontinued Operations | - | - | - | - |
| Extraordinary Items | - | - | - | - |
| Effect Of Accounting Changes | - | - | - | - |
| Other Items | - | - | - | - |
| Net Income |
| Net Income | 368,000 | 1,792,000 | 432,000 | -692,000 |
| Preferred Stock And Other Adjustments | - | - | - | - |
| Net Income Applicable To Common Shares | 333,000 | 1,792,000 | 432,000 | -692,000 |