| Revenue | 12/31/2018 | 12/31/2017 | 12/31/2016 | 12/31/2015 |
| Total Revenue | 247,537,000 | 240,651,000 | 215,865,000 | 200,060,000 |
| Cost of Revenue | 237,516,000 | 215,441,000 | 179,566,000 | 161,879,000 |
| Gross Profit | 10,021,000 | 25,210,000 | 36,299,000 | 38,181,000 |
| Operating Expenses |
| Research Development | - | - | - | - |
| Selling General and Administrative | - | - | - | - |
| Non Recurring | - | - | - | - |
| Others | - | - | - | - |
| Total Operating Expenses | 237,516,000 | 215,441,000 | 179,566,000 | 161,879,000 |
| Operating Income or Loss | 10,021,000 | 25,210,000 | 36,299,000 | 38,181,000 |
| Income from Continuing Operations |
| Total Other Income/Expenses Net | -6,020,000 | -1,372,000 | -2,632,000 | -3,235,000 |
| Earnings Before Interest and Taxes | 10,021,000 | 25,210,000 | 36,299,000 | 38,181,000 |
| Interest Expense | -3,853,000 | -4,386,000 | -3,741,000 | -3,113,000 |
| Income Before Tax | 4,001,000 | 23,838,000 | 33,667,000 | 34,946,000 |
| Income Tax Expense | -321,000 | -21,515,000 | 9,240,000 | 10,532,000 |
| Minority Interest | 3,797,000 | 3,658,000 | 3,358,000 | 3,077,000 |
| Net Income From Continuing Ops | 4,322,000 | 45,353,000 | 24,427,000 | 24,414,000 |
| Non-recurring Events |
| Discontinued Operations | - | - | - | - |
| Extraordinary Items | - | - | - | - |
| Effect Of Accounting Changes | - | - | - | - |
| Other Items | - | - | - | - |
| Net Income |
| Net Income | 4,021,000 | 44,940,000 | 24,074,000 | 24,083,000 |
| Preferred Stock And Other Adjustments | - | - | - | - |
| Net Income Applicable To Common Shares | 4,021,000 | 44,940,000 | 24,074,000 | 24,083,000 |