| Revenue | 12/31/2018 | 12/31/2017 | 12/31/2016 | 12/31/2015 |
| Total Revenue | 13,403,000 | 11,652,000 | 9,318,000 | 11,199,000 |
| Cost of Revenue | 10,081,000 | 9,066,000 | 7,893,000 | 8,949,000 |
| Gross Profit | 3,322,000 | 2,586,000 | 1,425,000 | 2,250,000 |
| Operating Expenses |
| Research Development | 31,000 | 32,000 | 33,000 | 69,000 |
| Selling General and Administrative | 387,000 | 284,000 | 291,000 | 341,000 |
| Non Recurring | - | - | - | - |
| Others | -75,000 | 17,000 | 10,000 | -2,000 |
| Total Operating Expenses | 11,157,000 | 10,149,000 | 9,017,000 | 10,137,000 |
| Operating Income or Loss | 2,246,000 | 1,503,000 | 301,000 | 1,062,000 |
| Income from Continuing Operations |
| Total Other Income/Expenses Net | -649,000 | -344,000 | -463,000 | -1,399,000 |
| Earnings Before Interest and Taxes | 2,246,000 | 1,503,000 | 301,000 | 1,062,000 |
| Interest Expense | -122,000 | -104,000 | -243,000 | -270,000 |
| Income Before Tax | 1,597,000 | 1,159,000 | -162,000 | -337,000 |
| Income Tax Expense | 726,000 | 600,000 | 184,000 | 402,000 |
| Minority Interest | 2,007,000 | 2,275,000 | 2,043,000 | 2,071,000 |
| Net Income From Continuing Ops | 871,000 | 559,000 | -346,000 | -739,000 |
| Non-recurring Events |
| Discontinued Operations | - | - | - | - |
| Extraordinary Items | - | - | - | - |
| Effect Of Accounting Changes | - | - | - | - |
| Other Items | - | - | - | - |
| Net Income |
| Net Income | 227,000 | 217,000 | -400,000 | -863,000 |
| Preferred Stock And Other Adjustments | - | - | - | - |
| Net Income Applicable To Common Shares | 227,000 | 217,000 | -400,000 | -863,000 |