| Revenue | 12/31/2018 | 12/31/2017 | 12/31/2016 | 12/31/2015 |
| Total Revenue | 71,861,000 | 65,872,000 | 60,906,000 | 58,363,000 |
| Cost of Revenue | 37,725,000 | 51,022,000 | 48,592,000 | 43,975,000 |
| Gross Profit | 34,136,000 | 14,850,000 | 12,314,000 | 14,388,000 |
| Operating Expenses |
| Research Development | - | - | - | - |
| Selling General and Administrative | 1,362,000 | 1,362,000 | 1,362,000 | 1,362,000 |
| Non Recurring | - | - | - | - |
| Others | 27,602,000 | 5,039,000 | 4,615,000 | 4,636,000 |
| Total Operating Expenses | 65,327,000 | 58,343,000 | 55,431,000 | 50,695,000 |
| Operating Income or Loss | 6,534,000 | 7,529,000 | 5,475,000 | 7,668,000 |
| Income from Continuing Operations |
| Total Other Income/Expenses Net | -515,000 | -381,000 | -339,000 | -326,000 |
| Earnings Before Interest and Taxes | 6,534,000 | 7,529,000 | 5,475,000 | 7,668,000 |
| Interest Expense | -605,000 | -453,000 | -381,000 | -341,000 |
| Income Before Tax | 6,019,000 | 7,148,000 | 5,136,000 | 7,342,000 |
| Income Tax Expense | 1,228,000 | 2,238,000 | 1,705,000 | 2,498,000 |
| Minority Interest | - | 30,000 | 24,000 | 21,000 |
| Net Income From Continuing Ops | 4,791,000 | 4,910,000 | 3,431,000 | 4,844,000 |
| Non-recurring Events |
| Discontinued Operations | - | - | - | - |
| Extraordinary Items | - | - | - | - |
| Effect Of Accounting Changes | - | - | - | - |
| Other Items | - | - | - | - |
| Net Income |
| Net Income | 4,791,000 | 4,910,000 | 3,431,000 | 4,844,000 |
| Preferred Stock And Other Adjustments | - | - | - | - |
| Net Income Applicable To Common Shares | 4,791,000 | 4,910,000 | 3,431,000 | 4,844,000 |