| Revenue | 11/30/2018 | 11/30/2017 | 11/30/2016 | 11/30/2015 |
| Total Revenue | 769,800 | 783,100 | 759,900 | 838,000 |
| Cost of Revenue | 579,100 | 582,300 | 556,000 | 644,100 |
| Gross Profit | 190,700 | 200,800 | 203,900 | 193,900 |
| Operating Expenses |
| Research Development | - | - | - | - |
| Selling General and Administrative | 104,200 | 117,100 | 118,500 | 119,300 |
| Non Recurring | - | - | - | - |
| Others | 400 | -200 | -700 | 3,000 |
| Total Operating Expenses | 712,700 | 727,100 | 701,400 | 794,600 |
| Operating Income or Loss | 57,100 | 56,000 | 58,500 | 43,400 |
| Income from Continuing Operations |
| Total Other Income/Expenses Net | -42,600 | -60,100 | -48,600 | -64,500 |
| Earnings Before Interest and Taxes | 57,100 | 56,000 | 58,500 | 43,400 |
| Interest Expense | -20,100 | -21,500 | -27,600 | -28,900 |
| Income Before Tax | 14,500 | -4,100 | 9,900 | -21,100 |
| Income Tax Expense | -6,200 | 83,700 | 10,300 | -2,400 |
| Minority Interest | - | - | - | - |
| Net Income From Continuing Ops | 20,700 | -87,800 | -400 | -18,700 |
| Non-recurring Events |
| Discontinued Operations | - | - | - | 900 |
| Extraordinary Items | - | - | - | - |
| Effect Of Accounting Changes | - | - | - | - |
| Other Items | - | - | - | - |
| Net Income |
| Net Income | 20,700 | -87,800 | -400 | -17,800 |
| Preferred Stock And Other Adjustments | - | - | - | - |
| Net Income Applicable To Common Shares | 20,700 | -87,800 | -400 | -17,800 |