| Revenue | 12/31/2018 | 12/31/2017 | 12/31/2016 | 12/31/2015 |
| Total Revenue | 15,451,000 | 13,094,000 | 10,842,000 | 9,248,000 |
| Cost of Revenue | 8,337,000 | 7,077,000 | 5,701,000 | 4,529,000 |
| Gross Profit | 7,114,000 | 6,017,000 | 5,141,000 | 4,719,000 |
| Operating Expenses |
| Research Development | 1,071,000 | 953,000 | 834,000 | 792,000 |
| Selling General and Administrative | 2,764,000 | 2,283,000 | 1,997,000 | 1,810,000 |
| Non Recurring | - | - | - | - |
| Others | 284,000 | 92,000 | 92,000 | 92,000 |
| Total Operating Expenses | 13,232,000 | 11,180,000 | 9,256,000 | 7,739,000 |
| Operating Income or Loss | 2,219,000 | 1,914,000 | 1,586,000 | 1,509,000 |
| Income from Continuing Operations |
| Total Other Income/Expenses Net | 157,000 | 286,000 | 45,000 | -21,000 |
| Earnings Before Interest and Taxes | 2,219,000 | 1,914,000 | 1,586,000 | 1,509,000 |
| Interest Expense | -77,000 | -7,000 | -3,000 | -3,000 |
| Income Before Tax | 2,376,000 | 2,200,000 | 1,631,000 | 1,488,000 |
| Income Tax Expense | 319,000 | 405,000 | 230,000 | 260,000 |
| Minority Interest | - | - | - | - |
| Net Income From Continuing Ops | 2,057,000 | 1,795,000 | 1,401,000 | 1,228,000 |
| Non-recurring Events |
| Discontinued Operations | - | - | - | - |
| Extraordinary Items | - | - | - | - |
| Effect Of Accounting Changes | - | - | - | - |
| Other Items | - | - | - | - |
| Net Income |
| Net Income | 2,057,000 | 1,795,000 | 1,401,000 | 1,228,000 |
| Preferred Stock And Other Adjustments | - | - | - | - |
| Net Income Applicable To Common Shares | 2,057,000 | 1,795,000 | 1,401,000 | 1,228,000 |