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REVENUE (Tables) | 12 Months Ended
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Mar. 31, 2020
Schedule of net sales on a disaggregated basis by market and contract type | The Company’s contract portfolio is comprised of fixed-price contracts and provide for product type sales only. The following table presents net sales on a disaggregated basis by market and contract type:
Net Sales by market |  | Defense |  | Energy |  | Industrial |  | Totals
Year ended March 31, 2020 |  | $ | 13,367,764 |  | $ | 595,076 |  | $ | 2,044,448 |  | $ | 16,007,288
Year ended March 31, 2019 |  | $ | 14,036,638 |  | $ | 2,403,732 |  | $ | 262,188 |  | $ | 16,702,558
Net Sales by contract type |  | Over-time |  | Point-in-time |  | Totals
Year ended March 31, 2020 |  | $ | 12,637,728 |  | $ | 3,369,560 |  | $ | 16,007,288
Year ended March 31, 2019 |  | $ | 15,771,213 |  | $ | 931,345 |  | $ | 16,702,558
|  |  |  |  | Progress |  |  |
|  | Unbilled |  | payments |  | Total
March 31, 2020 |  | $ | 10,635,588 |  | $ | (6,130,967) |  | $ | 4,504,621
March 31, 2019 |  | $ | 9,324,361 |  | $ | (4,933,529) |  | $ | 4,390,832
Sales [Member] |
Schedule of revenues from customers who accounted for more than 10% of our net sales |
|  | 2020 |  |  | 2019 |
Customer |  | Amount |  | Percent |  |  | Amount |  | Percent |
Customer A |  | $ | 3,558,477 |  | 22 | % |  | $ | 3,196,625 |  | 19 | %
Customer B |  | $ | 2,758,957 |  | 17 | % |  | $ | * |  | * | %
Customer C |  | $ | 2,063,409 |  | 13 | % |  | $ | 3,223,967 |  | 19 | %
Customer D |  | $ | * |  | * | % |  | $ | 5,332,515 |  | 32 | %
Customer E |  | $ | 1,835,362 |  | 11 | % |  | $ | * |  | * | %
*Less than 10% of total

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