of the market price on the first day of a six-month period or the market price on the last day of that same six-month period. Expenses incurred for the Team Member Stock Purchase Plan during the fiscal years ended March 26, 2023, March 27, 2022, and March 28, 2021 were $51,700, $54,400, and $61,500, respectively. During the fiscal years ended March 26, 2023, March 27, 2022, and March 28, 2021, 36,639, 30,169, and 40,493 shares were sold to employees under this plan, having a weighted average market value of $4.06, $5.21, and $4.92, respectively.
Note 17. Fair Value Disclosure
Assets and liabilities carried at fair value are classified and disclosed in one of the following three categories:
| ● | Level 1: Quoted prices (unadjusted) in active markets for identical assets or liabilities. |
| ● | Level 2: Inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly. These include quoted prices for similar assets or liabilities in active markets, and quoted prices for identical or similar assets or liabilities in markets that are not active. |
| ● | Level 3: Unobservable inputs for the asset or liability that reflect the reporting entity’s own assumptions about the inputs used in pricing the asset or liability. |
As of March 26, 2023 and March 27, 2022, the Company had no assets or liabilities recorded at fair value.
The carrying amounts of cash and cash equivalents, trade accounts receivable, product inventory, trade accounts payable, accrued expenses, revolving credit facility, life insurance policies and other current liabilities approximate their fair values as of March 26, 2023 and March 27, 2022 due to their short-term nature. The carrying amount of our Symetra Loan approximates the fair value as the change in interest rates has an immaterial effect on the fair value of the debt.
Note 18. Supplemental Cash Flow Information
For fiscal years 2023 and 2022, the Company had a net tax refund of $3,748,500 and $4,247,900, respectively. Cash paid for income taxes, net of refunds, for fiscal year 2021 was $21,000. Cash paid for interest during fiscal years 2023, 2022 and 2021 totaled $3,521,800, $1,355,100 and $952,700, respectively. Interest capitalized during fiscal years 2023, 2022 and 2021 was $1,535,200, $680,000 and $450,200, respectively.
Note 19. Concentration of Risk Related to Continuing Operations
Sales to customers and purchases from suppliers are largely governed by individual sales or purchase orders, so there is no guarantee of future business. In some cases, the Company has more formal agreements with significant customers or suppliers, but they are largely administrative in nature and are terminable by either party upon several months or otherwise short notice and they typically contain no obligation to make purchases from Tessco. In the event a significant customer decides to make its purchases from another source, experiences a significant change in demand internally or from its own customer base, becomes financially unstable, or is acquired by another company, the Company’s ability to generate revenues from these customers may be significantly affected, resulting in an adverse effect on its financial position and results of operations.
The Company is dependent on third-party equipment manufacturers, distributors and dealers for most of its supply of wireless communications equipment. For fiscal years 2023, 2022 and 2021, sales of products purchased from the Company's top ten suppliers accounted for 51%, 54%, and 53% of total revenues, respectively. Products purchased from the Company’s largest supplier related to continuing operations accounted for approximately 29% of total revenues in fiscal years 2023, 2022 and 2021. The Company is dependent on the ability of its suppliers to provide products on a timely basis and on favorable pricing terms. The Company believes that alternative sources of supply are available for many of the product types it carries, but not for all products offered by the Company. The loss of certain principal suppliers, including the suppliers referenced above, or of other suppliers whose products may be difficult to source on comparable terms elsewhere, would have a material adverse effect on the Company.
The Company's future results could also be negatively impacted by the loss of certain customers.. For fiscal years 2023, 2022 and 2021, sales of products to the Company's top ten customer relationships accounted for 36%, 35% and 34% of total revenues, respectively. Our largest customer accounted for 10% of total revenues in fiscal year 2023. No customer accounted for more than 10% of total revenues in fiscal year 2022, and one customer accounted for 11% of total revenues in fiscal year 2021.