| Revenue | 4/26/2019 | 4/27/2018 | 4/28/2017 | 4/29/2016 |
| Total Revenue | 30,557,000 | 29,953,000 | 29,710,000 | 28,833,000 |
| Cost of Revenue | 9,064,000 | 9,010,000 | 9,246,000 | 8,907,000 |
| Gross Profit | 21,493,000 | 20,943,000 | 20,464,000 | 19,926,000 |
| Operating Expenses |
| Research Development | 2,330,000 | 2,256,000 | 2,193,000 | 2,224,000 |
| Selling General and Administrative | 10,283,000 | 9,938,000 | 9,715,000 | 9,469,000 |
| Non Recurring | - | - | - | - |
| Others | 541,000 | 159,000 | 466,000 | 583,000 |
| Total Operating Expenses | 23,982,000 | 23,186,000 | 23,600,000 | 23,114,000 |
| Operating Income or Loss | 6,575,000 | 6,767,000 | 6,110,000 | 5,719,000 |
| Income from Continuing Operations |
| Total Other Income/Expenses Net | -1,378,000 | -1,092,000 | -1,508,000 | -1,383,000 |
| Earnings Before Interest and Taxes | 6,575,000 | 6,767,000 | 6,110,000 | 5,719,000 |
| Interest Expense | -1,444,000 | -1,146,000 | -1,094,000 | -1,386,000 |
| Income Before Tax | 5,197,000 | 5,675,000 | 4,602,000 | 4,336,000 |
| Income Tax Expense | 547,000 | 2,580,000 | 578,000 | 798,000 |
| Minority Interest | 121,000 | 102,000 | 122,000 | 122,000 |
| Net Income From Continuing Ops | 4,650,000 | 3,095,000 | 4,024,000 | 3,538,000 |
| Non-recurring Events |
| Discontinued Operations | - | - | - | - |
| Extraordinary Items | - | - | - | - |
| Effect Of Accounting Changes | - | - | - | - |
| Other Items | - | - | - | - |
| Net Income |
| Net Income | 4,631,000 | 3,104,000 | 4,028,000 | 3,538,000 |
| Preferred Stock And Other Adjustments | - | - | - | - |
| Net Income Applicable To Common Shares | 4,631,000 | 3,104,000 | 4,028,000 | 3,538,000 |