Tessco (TESS) 10-K 11 Jun 21 2021 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Mar. 28, 2021	Jun. 02, 2021	Sep. 27, 2020
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Mar. 28, 2021
Document Transition Report	false
Entity File Number	001-33938
Entity Registrant Name	TESSCO Technologies Incorporated
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	52-0729657
Entity Address, Address Line One	11126 McCormick Road
Entity Address, City or Town	Hunt Valley
Entity Address, State or Province	MD
Entity Address, Postal Zip Code	21031
City Area Code	410
Local Phone Number	229-1000
Title of 12(b) Security	Common Stock
Trading Symbol	TESS
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 37,234,870
Entity Common Stock, Shares Outstanding		8,886,031
Entity Central Index Key	0000927355
Current Fiscal Year End Date	--03-28
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Amendment Flag	false

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($)	Mar. 28, 2021	Mar. 29, 2020
Current assets:
Cash and cash equivalents	$ 1,110,000	$ 50,000
Trade accounts receivable, net	70,045,700	82,868,400
Product inventory, net	53,060,000	50,298,100
Income taxes receivable	10,432,500	5,746,700
Prepaid expenses and other current assets	3,980,900	5,960,800
Current portion of assets held for sale	1,196,900	18,849,900
Total current assets	139,826,000	163,773,900
Property and equipment, net	12,571,600	13,433,700
Intangible assets, net	19,136,500	11,157,400
Deferred tax assets, net		3,032,500
Lease asset - right of use	11,285,800	13,949,800
Other long-term assets	6,258,000	3,361,400
Total assets	189,077,900	208,708,700
Current liabilities:
Trade accounts payable	59,415,600	75,512,600
Payroll, benefits and taxes	6,279,800	4,258,300
Income and sales tax liabilities	803,900	450,800
Accrued expenses and other current liabilities	2,912,300	4,244,400
Revolving line of credit		25,563,900
Lease liability, current	2,573,500	2,579,200
Total current liabilities	71,985,100	112,609,200
Deferred tax liabilities, net	26,500
Revolving line of credit	30,583,200
Non-current lease liability	8,923,500	11,481,100
Other non-current liabilities	809,400	915,700
Total liabilities	112,327,700	125,006,000
Shareholders' equity:
Preferred stock, $0.01 par value per share, 500,000 shares authorized and no shares issued and outstanding
Common stock, $0.01 par value per share, 15,000,000 shares authorized, 8,844,083 shares issued and 8,833,833 shares outstanding as of March 28, 2021, and 14,354,368 shares issued and 8,577,549 shares outstanding as of March 29, 2020	104,200	101,400
Additional paid-in capital	67,227,700	65,318,500
Treasury stock, at cost, 10,250 shares as of March 28, 2021 and 5,776,819 shares as of March 29, 2020	(62,800)	(58,496,200)
Retained earnings	9,481,100	76,779,000
Total shareholders' equity	76,750,200	83,702,700
Total liabilities and shareholders' equity	$ 189,077,900	$ 208,708,700

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Mar. 28, 2021	Mar. 29, 2020
Shareholders' equity:
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, authorized (in shares)	500,000	500,000
Preferred stock, issued (in shares)	0	0
Preferred stock, outstanding (in shares)	0	0
Common stock, par value (in dollars shares)	$ 0.01	$ 0.01
Common stock, authorized (in shares)	15,000,000	15,000,000
Common stock, issued (in shares)	8,844,083	14,354,368
Common stock, outstanding (in shares)	8,833,833	8,577,549
Treasury stock (in shares)	10,250	5,776,819

Consolidated Statements of (Los

Consolidated Statements of (Loss) Income - USD ($)	12 Months Ended
	Mar. 28, 2021	Mar. 29, 2020	Mar. 31, 2019
Consolidated Statements of (Loss) Income
Revenues	$ 373,340,700	$ 409,014,400	$ 419,044,800
Cost of goods sold	305,625,100	329,372,500	334,640,100
Gross profit	67,715,600	79,641,900	84,404,700
Selling, general and administrative expenses	85,507,100	92,005,200	95,347,000
Goodwill impairment		9,108,600
Restructuring charge		488,000
Operating loss	(17,791,500)	(21,959,900)	(10,942,300)
Interest expense, net	426,300	1,116,300	853,800
Loss from continuing operations before (benefit from) provision for income taxes	(18,217,800)	(23,076,200)	(11,796,100)
(Benefit from) provision for income taxes	(3,844,500)	(7,474,800)	(2,913,800)
Net loss from continuing operations	(14,373,300)	(15,601,400)	(8,882,300)
Income (loss) from discontinued operations, net of taxes	5,630,400	(5,967,500)	14,428,100
Net loss	$ (8,742,900)	$ (21,568,900)	$ 5,545,800
Basic (loss) income per share
Continuing operations (in dollars per share)	$ (1.65)	$ (1.83)	$ (1.05)
Discontinued operations (in dollars per share)	0.65	(0.70)	1.71
Consolidated operations (in dollars per share)	(1.01)	(2.53)	0.66
Diluted (loss) income per share
Continuing operations (in dollars per share)	(1.65)	(1.83)	(1.05)
Discontinued operations (in dollars per share)	0.65	(0.70)	1.68
Consolidated operations (in dollars per share)	$ (1.01)	$ (2.53)	$ 0.65
Basic weighted-average common shares outstanding (in shares)	8,697,369	8,526,965	8,436,796
Basic and diluted weighted-average common shares outstanding (in shares)	8,697,369	8,526,965	8,436,796
Cash dividends declared per common share (in dollars per share)		$ 0.62	$ 0.80

Consolidated Statements of Chan

Consolidated Statements of Changes in Shareholders' Equity - USD ($)	Common Stock	Additional Paid-in Capital	Treasury Stock	Retained Earnings	Total
Balance at Apr. 01, 2018	$ 99,000	$ 60,611,900	$ (57,503,000)	$ 104,843,700	$ 108,051,600
Balance (in shares) at Apr. 01, 2018	8,396,537
Increase (Decrease) in Stockholders' Equity
Proceeds from issuance of stock	$ 500	810,800			811,300
Proceeds from issuance of stock (in shares)	52,067
Treasury stock purchases			(111,100)		(111,100)
Treasury stock purchases (in shares)	(6,332)
Non-cash stock compensation expense	$ 300	1,243,700			$ 1,244,000
Non-cash stock compensation expense (in shares)	26,257
Exercise of stock options (in shares)					0
Cash dividends paid				(6,754,400)	$ (6,754,400)
Net (loss) income				5,545,800	5,545,800
Balance at Mar. 31, 2019	$ 99,800	62,666,400	(57,614,100)	103,635,100	108,787,200
Balance (in shares) at Mar. 31, 2019	8,468,529
Increase (Decrease) in Stockholders' Equity
Proceeds from issuance of stock	$ 700	797,300			798,000
Proceeds from issuance of stock (in shares)	72,430
Treasury stock purchases			(882,100)		(882,100)
Treasury stock purchases (in shares)	(55,321)
Non-cash stock compensation expense	$ 400	1,174,200			1,174,600
Non-cash stock compensation expense (in shares)	43,786
Exercise of stock options (in dollars)	$ 500	680,600			$ 681,100
Exercise of stock options (in shares)	48,125				48,125
Cash dividends paid				(5,287,200)	$ (5,287,200)
Net (loss) income				(21,568,900)	(21,568,900)
Balance at Mar. 29, 2020	$ 101,400	65,318,500	(58,496,200)	76,779,000	$ 83,702,700
Balance (in shares) at Mar. 29, 2020	8,577,549				8,577,549
Increase (Decrease) in Stockholders' Equity
Proceeds from issuance of stock	$ 1,300	699,700			$ 701,000
Proceeds from issuance of stock (in shares)	130,907
Treasury stock purchases			(121,600)		(121,600)
Treasury stock purchases (in shares)	(23,031)
Non-cash stock compensation expense	$ 1,500	1,209,500			$ 1,211,000
Non-cash stock compensation expense (in shares)	148,408
Exercise of stock options (in shares)					0
Retirement of treasury stock			58,555,000	(58,555,000)
Net (loss) income				(8,742,900)	$ (8,742,900)
Balance at Mar. 28, 2021	$ 104,200	$ 67,227,700	$ (62,800)	$ 9,481,100	$ 76,750,200
Balance (in shares) at Mar. 28, 2021	8,833,833				8,833,833

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Mar. 28, 2021	Mar. 29, 2020	Mar. 31, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income (Loss)	$ (8,742,900)	$ (21,568,900)	$ 5,545,800
Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities:
Depreciation and amortization	3,744,500	4,026,100	3,618,900
Goodwill impairment		11,677,700
Gain on sale of discontinued operations	(3,020,800)
Non-cash stock-based compensation expense	1,211,000	1,174,600	1,244,000
Deferred income taxes and other	3,032,500	(2,977,200)	665,200
Change in trade accounts receivable	12,676,000	11,097,800	(6,103,900)
Change in product inventory	9,279,900	2,697,400	477,600
Change in prepaid expenses and other current assets	(2,007,600)	(6,144,700)	(1,073,700)
Change in other assets and other liabilities	(3,304,200)	(251,400)	938,900
Change in trade accounts payable	(15,197,600)	905,300	5,073,600
Change in payroll, benefits and taxes	2,021,500	(1,671,200)	(2,361,600)
Change in income and sales tax liabilities	353,100	(298,200)	(1,590,200)
Change in accrued expenses and other current liabilities	(729,600)	2,240,900	1,812,100
Net cash (used in) provided by operating activities	(684,200)	908,200	8,246,700
CASH FLOWS FROM INVESTING ACTIVITIES
Acquisition of property and equipment	(806,100)	(288,000)	(2,855,200)
Proceeds from sale of discontinued operations	9,201,500
Purchases of internal use software licenses eligible for capitalization	(11,049,800)	(6,557,700)	(2,309,500)
Net cash used in investing activities	(2,654,400)	(6,845,700)	(5,164,700)
CASH FLOWS FROM FINANCING ACTIVITIES
Net borrowings (repayments) from revolving line of credit short term	(25,565,300)	11,185,800	3,542,700
Gross proceeds from borrowings from 2020 Revolving Credit Facility	137,868,500
Repayments of borrowings on 2020 Revolving Credit Facility	(107,283,900)
Payments of debt issuance costs	(698,300)
Payments on long term debt		(2,300)	(27,300)
Proceeds from issuance of stock	199,200	262,400	279,000
Proceeds from exercise of stock options		680,600
Cash dividends paid		(5,287,200)	(6,754,400)
Purchase of treasury stock and repurchase of stock from employees and directors for minimum tax withholdings	(121,600)	(882,100)	(111,100)
Net cash provided by (used in) financing activities	4,398,600	5,957,200	(3,071,100)
Net increase in cash and cash equivalents	1,060,000	19,700	10,900
CASH AND CASH EQUIVALENTS, beginning of period	50,000	30,300	19,400
CASH AND CASH EQUIVALENTS, end of period	$ 1,110,000	$ 50,000	$ 30,300

Organization

Organization	12 Months Ended
	Mar. 28, 2021
Organization
Organization	Note 1. Organization ​ TESSCO Technologies Incorporated, a Delaware corporation (“Tessco”, “we”, “our”, or the “Company”), architects and delivers innovative product and value chain solutions to support wireless systems. The Company provides marketing and sales services, knowledge and supply chain management, product-solution delivery and control systems utilizing extensive internet and information technology. Approximately 97% of the Company’s sales are made to customers in the United States. The Company takes orders in several ways, including phone, fax, online and through electronic data interchange. Almost all of the Company’s sales are made in United States Dollars.

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Mar. 28, 2021
Summary of Significant Accounting Policies
Summary of Significant Accounting Policies	Note 2. Summary of Significant Accounting Policies ​ Principles of Consolidation ​ The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. Intercompany accounts and transactions have been eliminated in consolidation. ​ Fiscal Year ​ The Company's fiscal year is the 52 or 53 weeks ending on the Sunday falling on or between March 26 and April 1 to allow the financial year to better reflect the Company's natural weekly accounting and business cycle. The fiscal years ended March 28, 2021, March 29, 2020 and March 31, 2019 contained 52 weeks. ​ Reclassifications ​ Certain prior period amounts have been reclassified to conform to current year presentations, including Income taxes receivable on the Company’s Consolidated Balance Sheets. The Company has filed for a refund with the IRS. ​ Cash and Cash Equivalents ​ Cash and cash equivalents include cash and highly liquid investments with an original maturity of 90 days or less. ​ Allowance for Doubtful Accounts ​ The Company uses estimates to determine the amount of the allowance for doubtful accounts necessary to reduce accounts receivable to their expected net realizable value. The Company estimates the amount of the required allowance by reviewing the status of past-due receivables and analyzing historical bad debt trends and current economic conditions. Actual collection experience has not varied significantly from estimates, due primarily to consistent credit policies, collection experience, as well as the Company’s stability as it relates to its current customer base. Typical payments from a large majority of commercial customers are due 30 days from the date of the invoice. The Company charges-off receivables deemed to be uncollectible to the allowance for doubtful accounts. Accounts receivable balances are not collateralized by our customers. At March 28, 2021 and March 29, 2020, the Company had a reserve for the allowance for doubtful accounts related to customers in continuing operations of $1,584,200 and $3,288,800, respectively. ​ Product Inventory ​ Product inventory, consisting primarily of finished goods, is stated at the lower of cost or net realizable value, cost being determined on the first-in, first-out (“FIFO”) method and includes certain charges directly and indirectly incurred in bringing product inventories to the point of sale. Inventory is written down for estimated obsolescence equal to the difference between the cost of inventory and the estimated net realizable value, based upon specifically known inventory-related risks (such as technological obsolescence and the nature of supplier terms surrounding price protection and product returns), and assumptions about future demand. At March 28, 2021 and March 29, 2020, the Company had a reserve for excess and obsolete inventory of $3,359,000 and $9,666,100, respectively. At March 28, 2021 and March 29, 2020, the reserve for excess and obsolete inventory included balances related to the discontinued Retail operations of $81,000 and $6,350,800 respectively, which are included in the Current portion of assets held for sale on the Consolidated Balance Sheets. The reduction in the reserve is primarily related to the exit from the Retail business that occurred in fiscal year 2020. The reserve as of March 29, 2020 included reserves on retail inventory and were higher than normal levels due in part to concerns surrounding the COVID-19 pandemic at that time. ​ Property and Equipment ​ Property and equipment is stated at cost. Depreciation is recorded using the straight-line method over the estimated useful lives of the assets as follows: ​ ​ ​ ​ ​ ​ ​ ​ Useful lives ​ ​ ​ ​ ​ Information technology equipment 1 - 3 years Furniture, telephone system, equipment and tooling 3 - 10 years Building, building improvements and leasehold improvements 2 - 40 years ​ Leasehold improvements are amortized over the shorter of their useful lives or the remaining lease term. ​ Intangibles ​ The Company capitalizes computer software costs incurred in connection with developing or obtaining computer software for internal use when both the preliminary project stage is completed and when management authorizes and commits to funding the project and it is probable that the project will be completed. Development and acquisition costs are capitalized when the focus of the software project is either to develop new software, to increase the life of existing software or to add significantly to the functionality of existing software. Capitalization ceases when the software project is substantially complete and ready for its intended use. Amortization is recorded using the straight-line method over the estimated useful life which ranges from one ​ Impairment of Long-Lived Assets ​ Long-lived assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset or group of assets may not be fully recoverable. These events or changes in circumstances may include a significant deterioration of operating results, changes in business plans, or changes in anticipated future cash flows. If an impairment indicator is present, the Company evaluates recoverability by a comparison of the carrying amount of the assets to future undiscounted net cash flows expected to be generated by the assets. Assets are grouped at the lowest level for which there are identifiable cash flows that are largely independent of the cash flows generated by other asset groups. If future undiscounted cash flows are less than the carrying value of the asset group, the Company calculates the fair value of the asset group. If the assets are impaired, the impairment recognized is measured by the amount by which the carrying amount exceeds the fair value of the assets. Fair value is generally determined by estimates of discounted cash flows. The discount rate used in any estimate of discounted cash flows would be the rate required for a similar investment of like risk. There were no impairment charges of long-lived assets other than goodwill, in fiscal years 2021, 2020, or 2019. ​ Indefinite-Lived Intangible Assets ​ The indefinite lived intangible asset impairment test involves an initial qualitative analysis to determine if it is more likely than not that an intangible asset’s fair value is less than its carrying amount. If qualitative factors suggest a possible impairment, the Company then determines the fair value of the intangible asset. If the fair value of the intangible asset is less than its carrying value, an impairment loss is recognized for an amount equal to the difference. The intangible asset is then carried at its new fair value. We measure the fair value of our indefinite-lived intangible asset using the “relief from royalty” method. Significant estimates in this approach include projected revenues and royalty and discount rates. The estimates of discounted cash flows will likely change over time as impairment tests are performed. ​ Based on the Company’s quantitative impairment tests performed, the Company recognized a $11.7 million impairment loss on goodwill in fiscal year 2020 ($9.1 million related to continuing operations and $2.6 million related to discontinued operations). The Company did not recognize an impairment loss on goodwill or other indefinite lived intangible assets in fiscal years 2021 or 2019. ​ The methods of assessing fair value for our reporting units with goodwill as well as for indefinite lived assets require significant judgments to be made by management, including future revenues, expenses, cash flows and discount rates. Changes in such estimates or the application of alternative assumptions could produce significantly different results. ​ Other Long-Term Assets ​ Other long-term assets consist of capitalized implementation costs of hosting arrangements, cash surrender value of life insurance policies related to a Supplemental Executive Retirement Plan (see Note 13), and deferred debt financing costs. Capitalized implementation costs of hosting arrangements that are accounted for as service contracts, which relate to our SAP ERP implementation, was $3.1 million and $0.8 million as of March 28, 2021 and March 29, 2020, respectively. ​ Revenue Recognition ​ We account for revenue in accordance with ASC No. 606, Revenue from Contracts with Customers, which we adopted on April 2, 2018, using the modified retrospective method. We recognize revenue when control of promised goods is transferred to the customer. The amount of revenue recognized reflects the consideration to which the Company expects to be entitled in exchange for transferring the goods. ​ In most cases, shipments are made using FOB (freight on board) shipping terms. FOB destination terms are used for a portion of sales, and revenue for these sales is recorded when the product is received by the customer. Prices are always fixed at the time of sale. Historically, there have not been any material concessions provided to or by customers, future discounts provided by the Company, or other incentives subsequent to a sale. ​ We recognize revenues from sales transactions containing sales returns provisions at the time of the sale. The potential for customer returns are considered a component of variable consideration under ASC No. 606 and it is therefore considered when estimating the transaction price for a sale. We use the most likely amount method to determine the amount of expected returns. The amount of expected returns is recognized as a refund liability, representing the obligation to return the customer’s consideration. The return asset is measured at the former carrying amount of the inventory, less any expected costs to recover the goods, which is included in prepaid expenses and other current assets on the accompanying Consolidated Balance Sheets. ​ Our current and potential customers are continuing to look for ways to reduce their inventories and lower their total costs, including distribution, order taking and fulfillment costs, while still providing their customers excellent service. Some of these companies have turned to us to implement supply chain solutions, including purchasing inventory, assisting in demand forecasting, configuring, packaging, kitting and delivering products and managing customer and supplier relations, from order taking through cash collections. In performing these solutions, we assume varying levels of involvement in the transactions and varying levels of credit and inventory risk. As our offerings continually evolve to meet the needs of our customers, the Company constantly evaluates its revenue accounting based on the guidance set forth in accounting standards generally accepted in the United States. When applying this guidance in accordance with ASC No. 606, the Company looks at the following indicators: whether we are the primary obligor in the transaction; whether we have general inventory risk; whether we have latitude in establishing price; whether the customer holds us responsible for the acceptability of the product; whether the product returns are handled by us; and whether obligation exists between the other parties and our customer. Each of the Company’s customer relationships is independently evaluated based on the above guidance and revenues are recorded on the appropriate basis. Based on a review of the factors above, in the majority of the Company’s sales relationships, the Company has concluded that it is the principal in the transaction and records revenues based upon the gross amounts earned and booked. However, the Company does have relationships where it is not the principal and records revenues on a net fee basis, regardless of amounts billed (less than 1% of total revenues for fiscal year 2021). ​ Other than sales relating to the Company’s private brands, we offer no product warranties in excess of original equipment manufacturers’ warranties. Warranty expense was immaterial for fiscal years 2021, 2020, and 2019. ​ Supplier Programs ​ Funds received from suppliers for price protection, product rebates and marketing/promotion are recorded as a reduction in cost of goods sold in accordance with ASC No. 705-20: Cost of Sales and Services - Accounting for Consideration Received from a Vendor. ​ Shipping and Handling Costs ​ Shipping costs incurred to ship products from our distribution centers to our customers’ sites are included in selling, general and administrative expenses in the Consolidated Statements of (Loss) Income and totaled $10,036,100, $10,222,800, and $11,647,700 for fiscal years 2021, 2020, and 2019, respectively. ​ Stock Compensation Awards ​ The Company records stock compensation expense for awards in accordance with ASC No. 718. The Company accounts for forfeitures as they occur rather than estimate expected forfeitures. The standard also requires stock awards granted or modified after the adoption of the standard that include both performance conditions and graded vesting based on service to the Company to be amortized by an accelerated method rather than the straight-line method. ​ Income Taxes ​ The Company accounts for income taxes under the asset and liability method in accordance with ASC No. 740. Under this method, deferred income tax assets and liabilities arise from differences between the tax basis of assets or liabilities and their reported amounts in the financial statements. Deferred tax balances are determined by using the enacted tax rate to be in effect when the taxes are paid or refunds received. A valuation allowance related to deferred tax assets is recorded when it is more likely than not that some portion or all of the deferred tax assets will not be realized. ​ In accordance with ASC No. 740, no provision for tax uncertainties was determined to be necessary as of March 28, 2021, March 29, 2020 and March 31, 2019. ​ Use of Estimates ​ The preparation of financial statements in conformity with U.S. generally accepted accounting principles (GAAP) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. On an ongoing basis, the Company reviews and evaluates its estimates and assumptions, including but not limited to, those that relate to tax reserves, stock-based compensation, accounts receivable reserves, inventory reserves and future cash flows associated with impairment testing for long-lived assets. Actual results could significantly differ from those estimates. ​ Recently issued accounting pronouncements not yet adopted: ​ In June 2016, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2016-13, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments which amends the impairment model by requiring entities to use a forward-looking approach based on expected losses rather than incurred losses to estimate credit losses on certain types of financial instruments, including trade receivables. This may result in the earlier recognition of allowances for losses. This ASU is effective for periods beginning after December 15, 2022. The Company is currently evaluating the impact the adoption of this new standard will have on its Consolidated Financial Statements and will adopt the standard on the first day of the Company’s 2024 fiscal year. ​ In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes, which simplifies the accounting for income taxes by eliminating certain exceptions to the guidance in ASC 740 related to the approach for intraperiod tax allocation, and the methodology for calculating income taxes in an interim period. This ASU is effective for periods beginning after December 15, 2020. The Company is currently evaluating the impact the adoption of this new standard will have on its Consolidated Financial Statements. ​

Property and Equipment

Property and Equipment	12 Months Ended
	Mar. 28, 2021
Property and Equipment
Property and Equipment	Note 3. Property and Equipment ​ All of the Company’s property and equipment is located in the United States and is summarized as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2021 2020 ​ ​ ​ ​ ​ ​ ​ Land ​ $ 4,740,800 ​ $ 4,740,800 ​ Building, building improvements and leasehold improvements ​ 21,265,400 ​ 20,921,800 ​ Information technology equipment ​ 5,003,000 ​ 5,255,000 ​ Furniture, telephone system, equipment and tooling ​ 8,910,500 ​ 9,039,000 ​ ​ ​ 39,919,700 ​ 39,956,600 ​ Less accumulated depreciation ​ (27,348,100) ​ (26,522,900) ​ Property and equipment, net ​ $ 12,571,600 ​ $ 13,433,700 ​ ​ Depreciation of property and equipment was $1,667,500, $1,683,000, and $1,507,300 for fiscal years 2021, 2020 and 2019, respectively.

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	12 Months Ended
	Mar. 28, 2021
Goodwill and Other Intangible Assets
Intangible Assets	Note 4. Goodwill and Other Intangible Assets ​ Due to lower than expected results and a significant reduction in market capitalization (due to reduced stock price), we performed a quantitative impairment test for goodwill during the third and fourth quarters of fiscal year 2020. Based on the quantitative tests we did in fiscal year 2020, we recorded $9.1 million of non-cash goodwill impairment loss related to continuing operations and $2.6 million of impairment loss related to discontinued operations. There was no goodwill carrying amount at any time during fiscal year 2021. ​ Intangibles, net on our Consolidated Balance Sheets as of March 28, 2021 and March 29, 2020, consists of capitalized software for internal use and an indefinite lived intangible assets. Capitalized software for internal use, net of accumulated amortization, which primarily related to our SAP ERP implementation as of March 28, 2021 and March 29, 2020 was $18,341,100 and $10,362,100, respectively. Amortization expense of capitalized software for internal use was $2,077,000, $1,954,700, and $1,620,800 for fiscal years 2021, 2020, and 2019. Indefinite lived intangible assets were $795,400 as of March 28, 2021 and March 29, 2020.

Accrued expenses and other curr

Accrued expenses and other current liabilities	12 Months Ended
	Mar. 28, 2021
Accrued expenses and other current liabilities
Accrued expenses and other current liabilities	Note 5. Accrued expenses and other current liabilities ​ Accrued expenses and other current liabilities consisted of the following: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ March 28, 2021 March 29, 2020 Returns Reserve ​ $ 1,967,300 ​ $ 3,440,100 ​ Other Accrued Expenses ​ 945,000 ​ 804,300 ​ Total Accrued Expenses and other current liabilities ​ $ 2,912,300 ​ $ 4,244,400 ​ ​ The amount of expected returns are recognized as a refund liability within the Accrued expenses and other current liabilities line item on the Consolidated Balance Sheets. This liability represents the obligation to return customer consideration. The value of the expected goods returned by customers is recognized as a return asset within the Prepaid expenses and other current assets line item of the Consolidated Balance Sheets. The return asset value is initially measured at the former carrying amount in inventory, less any expected costs to recover the goods. The Company expects products returned by customers to be in new and salable condition, as required by our standard terms and conditions, and therefore impairment of the return asset is unlikely. Changes to the return liability are recorded as revenue adjustments and changes to the return asset are recorded as reductions to cost of goods sold. As of March 28, 2021, the return asset and return liability amounts were $1.0 million and $2.0 million, respectively. As of March 29, 2020, the return asset and return liability amounts were $2.7 million and $3.4 million, respectively.

Borrowings Under Revolving Cred

Borrowings Under Revolving Credit Facility	12 Months Ended
	Mar. 28, 2021
Borrowings Under Revolving Credit Facility
Borrowings Under Revolving Credit Facility	Note 6. Borrowings Under Revolving Credit Facility ​ Fiscal Year 2020 Revolving Credit Facility Activity ​ On June 24, 2016, the Company and its primary operating subsidiaries entered into a Credit Agreement (the “Credit Agreement”) with SunTrust Bank, as Administrative Agent and Lender, and Wells Fargo Bank, National Association, as a Lender, for a senior asset based secured revolving credit facility of up to $35 million (the Revolving Credit Facility”). On October 19, 2017, the Company and its primary operating subsidiaries, as co-borrowers, entered into an Amended and Restated Credit Agreement with SunTrust Bank, as Administrative Agent and Lender, and Wells Fargo Bank, National Association, as a Lender (the “Amended and Restated Credit Agreement”). Pursuant to the Amended and Restated Credit Agreement, the Credit Agreement for the secured Revolving Credit Facility, as previously established in June 2016, was amended and restated in order to, among other things, increase the Company’s borrowing limit from up to $35 million to up to $75 million. Capitalized terms used but not otherwise defined in this Note 6 under the heading, “Fiscal Year 2020 Revolving Credit Facility Activity” have the meanings ascribed to each in the Amended and Restated Credit Agreement. ​ On March 29, 2020, the interest rate applicable to borrowings under the Revolving Credit Facility was 3.09%. The weighted average interest rate on borrowings under the Company’s Revolving Credit Facility during fiscal year 2020 was 3.52%. Under certain circumstances, the Applicable Rate was subject to change at the Lenders’ option from the Eurodollar Rate plus the Applicable Margin to the Base Rate plus the Applicable Margin. ​ Interest expense on the Revolving Credit Facility for fiscal year 2020 totaled $1,114,900. Average borrowings under this Revolving Credit Facility totaled $33,755,700 and maximum borrowings totaled $56,069,900 for fiscal year 2020. In addition to the interest charged on borrowings, the Company was subject to a 0.25% fee on the unused portion of this Revolving Credit Facility. ​ Borrowings under this Revolving Credit Facility could be used for working capital and other general corporate purposes, and as further provided in, and subject to the applicable terms of, the Amended and Restated Credit Agreement. As of March 29, 2020, borrowings under this Revolving Credit Facility totaled $25.6 million and, therefore, the Company had $49.4 million available for borrowing as of March 29, 2020, subject to the Borrowing Base limitation and compliance with the other applicable terms of the Amended and Restated Credit Agreement, including the applicable covenants. The Company’s previous line of credit had a lockbox arrangement associated with it and therefore the outstanding balance was classified as a current liability on our Consolidated Balance Sheet as of March 29, 2020. ​ There is a financial covenant that the Company was required to maintain at any time during which borrowings under this Revolving Credit Facility exceeded $65 million. The Company’s borrowings did not exceed $65 million during fiscal year 2020. The Company was in compliance with the terms and other covenants applicable to the revolving credit facility at the end of fiscal year 2020. ​ This Revolving Credit Facility restricted our ability to pay dividends and to repurchase our shares, either upon a default or when our borrowing availability was below $15.0 million, or in certain more limited circumstances $11.3 million, and also limited to $2.0 million the aggregate dollar value of shares that may be withheld or repurchased in connection with satisfaction of tax withholding obligations related to vested equity grants during any 12 month period. It also contained other financial covenants and ratios that could restrict dividends and repurchases. At March 29, 2020, we had the ability to withhold or repurchase $1.8 million in additional shares of our common stock during fiscal 2020, without violating this covenant. ​ Fiscal Year 2021 Revolving Credit Facility Activity ​ On October 29, 2020, the Company entered into a Credit Agreement (the “2020 Credit Agreement”) among the Company, the Company’s primary operating subsidiaries as co-borrowers, the Lenders party thereto, and Wells Fargo Bank, National Association (“Wells”), as Administrative Agent, swingline lender and an issuing bank, and terminated the secured Revolving Credit Facility discussed above. Terms used, but not defined, in this Note 6 under the heading “Fiscal Year 2021 Revolving Credit Facility Activity” have the meanings set forth in the Credit Agreement or the related Guaranty and Security Agreement. ​ The 2020 Credit Agreement provides for a senior secured asset based revolving credit facility of up to $75 million (the “2020 Revolving Credit Facility”), which matures in forty-two months, on April 29, 2024. The 2020 Revolving Credit Facility includes a $5.0 million letter of credit sublimit and provides for the issuance of Swing Loans. The 2020 Credit Agreement also includes a provision permitting the Company, subject to certain conditions, to increase the aggregate amount of the commitments under the 2020 Revolving Credit Facility to an aggregate commitment amount of up to $125 million with optional additional commitments from then existing Lenders or new commitments from additional lenders, although no Lender is obligated to increase its commitment. Availability is determined in accordance with the Borrowing Base, which is generally 85% of Eligible Accounts minus plus plus minus ​ Borrowings initially accrue interest from the applicable borrowing date: (A) if a LIBOR Rate Loan, at a per annum rate equal to the LIBOR Rate plus plus ​ Following an Event of Default, the Lenders’ may at their option increase the applicable per annum rate to a rate equal to two percentage points above such rate and, with certain events of default such increase is automatic. ​ The Company is required to pay a monthly Unused Line Fee on the average daily unused portion of the 2020 Revolving Credit Facility, at a per annum rate equal to 0.25%. ​ The Credit Agreement contains one financial covenant, a Fixed Charge Coverage Ratio, which is tested only if Excess Availability is less than the greater of (a) 16.7% of the maximum amount of the Credit Facility (at closing, $12,525,000) and (b) $12,500,000. In addition, the 2020 Credit Agreement contains provisions that could limit our ability to engage in specified transactions or activities, including (but not limited to) investments and acquisitions, sales of assets, payment of dividends, issuance of additional debt and other matters. ​ Borrowings under the 2020 Revolving Credit Facility were initially used to pay all indebtedness outstanding under the previously existing credit facility among the Company and certain subsidiaries, the lenders party thereto and Truist Bank (successor by merger to SunTrust Bank), as administrative agent, and may be used for working capital and other general corporate purposes, and as further provided in, and subject to the applicable terms of, the 2020 Credit Agreement. ​ The Company is required to make certain prepayments under the 2020 Revolving Credit Facility under certain circumstances, including from net cash proceeds from certain asset dispositions in excess of certain thresholds. ​ The 2020 Credit Agreement contains representations, warranties and affirmative covenants. The Credit Agreement also contains negative covenants and restrictions on, among other things: (i) Indebtedness, (ii) liens, (iii) fundamental changes, (iv) disposition of assets, (v) restricted payments (including certain restrictions on redemptions and dividends, discussed below), (vi) investments and (vii) transactions with affiliates. The 2020 Credit Agreement also contains events of default, such as payment defaults, cross-defaults to other material indebtedness, misrepresentations, bankruptcy and insolvency, the occurrence of a Change of Control and the failure to observe the negative covenants and other covenants contained in the 2020 Credit Agreement and the other loan documents. ​ The secured Revolving Credit Facility also restricts our ability to pay dividends and to repurchase our shares. Assuming that no default exists, we may redeem or repurchase up to $2,000,000 of our shares in any twelve compensation plans. We may pay dividends or effect redemptions provided that no default exists or will exist after giving effect to the dividend or repurchase, and the average Excess Availability is not less than $18,750,000 during the immediately preceding thirty-day period and after giving effect to the dividend or repurchase on a pro forma basis, and for each day of the thirty-day period not less than $12,500,000. Excess Availability is generally defined as Availability minus the aggregate amount of trade payables aged in excess of historical levels and all book overdrafts in excess of historical practices. In addition to these conditions, dividends and repurchase of our shares are in any event limited to $625,000 per quarter and not more than $2,500,000 in the aggregate during the period October 29, 2020 through October 28, 2021, at which time these quarterly and aggregate limits expire. ​ Pursuant to a related Guaranty and Security Agreement, by and among the Company, the other borrowers under the 2020 Credit Agreement and other operating subsidiaries of the Company (collectively, the “Loan Parties”), and Wells, as Administrative Agent, the Obligations, which include the obligations under the 2020 Credit Agreement, are guaranteed by the Loan Parties, and secured by continuing first priority security interests in the Company’s and the other Loan Parties’ (including both borrowers and guarantors) Accounts, Books, Chattel Paper, Deposit Accounts, General Intangibles, Inventory, Negotiable Collateral, Supporting Obligations, Money, Cash Equivalents or other assets that come into the possession, custody or control of the Agent or any Lender, and related assets, and the proceeds and products of any of the foregoing (the “Collateral”). The security interests in the Collateral are in favor of the Administrative Agent, for the benefit of the Lenders party to the 2020 Credit Agreement from time to time. The Obligations secured also include certain other obligations of the Loan Parties to the Lenders and their affiliates arising from time to time, relating to swaps, hedges and cash management and other bank products. ​ On March 28, 2021, the interest rate applicable to borrowings under the 2020 Revolving Credit Facility was 4.50%. The weighted average interest rate on borrowings under the Company’s Revolving Credit Facility during fiscal year 2021 was 2.89%. Under certain circumstances, the Applicable Rate is subject to change at the Lenders’ option from the Eurodollar Rate plus the Applicable Margin to the Base Rate plus the Applicable Margin. ​ Interest expense on both Revolving Credit Facilities in the aggregate for fiscal year 2021 totaled $556,100, net of capitalized interest of $450,200. Average borrowings under the facilities totaled $34,404,500 and maximum borrowings totaled $43,283,000 for fiscal year 2021. In addition to the interest charged on borrowings, the Company continues to be subject to a 0.25% fee on the unused portion of the 2020 Revolving Credit Facility. ​ Borrowings under the 2020 Revolving Credit Facility may be used for working capital and other general corporate purposes, and as further provided in, and subject to the applicable terms of, the 2020 Credit Agreement. As of March 28, 2021, borrowings under the 2020 Revolving Credit Facility totaled $30.6 million and, therefore, the Company had $44.4 million available for borrowing as of March 28, 2021, subject to the Borrowing Base limitation and compliance with the other applicable terms referenced above. The 2020 Revolving Credit Facility has no lockbox arrangement associated with it, and therefore the outstanding balance is classified as a long-term liability on the Consolidated Balance Sheet as of March 28, 2021. Accordingly, borrowings from and repayments to the Company’s current line of credit are reflected on a gross basis in the cash flows from financing activities in the Consolidated Statements of Cash Flow. ​

Leases

Leases	12 Months Ended
	Mar. 28, 2021
Leases
Leases	Note 7. Lease ​ The Company is committed to making rental payments under non-cancelable operating leases covering various facilities and equipment. Our leases have remaining lease terms of 1 to 5 years, some of which include options to extend the leases for up to 5 years. Rent expense for fiscal years 2021, 2020 and 2019 totaled $3,453,500, $3,046,000, and $3,001,800, respectively. ​ The Company leases office space in Timonium, Maryland, where the Company’s sales, marketing and administrative offices are located. This space is nearby to the Company’s Global Logistics Center in Hunt Valley, Maryland. The Agreement of Lease expires on December 31, 2025. Monthly rent payments now range from $183,000 to $203,800 through the remaining lease term. ​ The Company also leases office and warehouse space in Hunt Valley, Maryland, adjacent to the Company’s Global Logistics Center, expiring on July 31, 2023. The Company has an ongoing annual option to terminate the lease. The monthly rental fee ranges from $40,500 to $43,000 through the remaining lease term. ​ Additional sales and marketing offices are located in additional leased office space in San Antonio, Texas. This space is leased pursuant to a lease agreement expiring on October 31, 2021. Monthly rent payments are $19,100 through the remaining lease term. ​ Quantitative information regarding the Company’s leases is as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ As of March 28, 2021 ​ Maturities of lease liabilities by fiscal year are as follow: ​ ​ ​ ​ 2022 ​ $ 3,164,000 ​ 2023 ​ ​ 3,018,300 ​ 2024 ​ ​ 2,725,700 ​ 2025 ​ ​ 2,609,900 ​ 2026 ​ ​ 1,987,600 ​ Total ​ ​ 13,505,500 ​ Less: present value discount ​ ​ (2,008,500) ​ Present value of lease liabilities ​ $ 11,497,000 ​ ​ ​ ​ ​ ​ Weighted-average discount rate: ​ ​ 3.9% ​ Weighted-average remaining lease term ​ ​ 4.5 years ​ ​

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Mar. 28, 2021
Commitments and Contingencies
Commitments and Contingencies	Note 8. Commitments and Contingencies ​ Lawsuits and claims are filed against the Company from time to time in the ordinary course of business. The Company does not believe that any lawsuits or claims pending against the Company, individually or in the aggregate, are material, or will have a material adverse effect on the Company’s financial condition or results of operations. In addition, from time to time, the Company is also subject to review from federal and state taxing authorities in order to validate the amounts of income, sales and/or use taxes which have been claimed and remitted. ​ As the Company is routinely audited by state taxing authorities, the Company has estimated exposure and established reserves for its estimated sales tax audit liability. ​

Operating Segments

Operating Segments	12 Months Ended
	Mar. 28, 2021
Operating Segments
Operating Segments	Note 9. Operating Segment ​ The Company evaluates its business as one segment, as the chief operating decision maker reviews results as one unit. However, to provide investors with increased visibility into the markets it serves, the Company also reports revenue and gross profit by the following customer markets: (1) public carriers that are generally responsible for building and maintaining the infrastructure system and provide airtime service to individual subscribers; and (2) value-added resellers and integrators, which includes value-added resellers, the government channel and private system operator markets. Inventory typically has a life cycle that tends to be tied to changes in regulation or technology and includes products typically used by business entities or governments. ​ Market activity for the fiscal years ended 2021, 2020 and 2019 is as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended ​ ​ March 28, 2021 ​ March 29, 2020 ​ March 31, 2019 Revenues ​ ​ ​ ​ ​ ​ ​ ​ ​ Public Carrier ​ $ 149,825 ​ $ 156,395 ​ $ 156,983 Value-added resellers and Integrators ​ ​ 223,516 ​ ​ 252,619 ​ ​ 262,062 Total revenues ​ $ 373,341 ​ $ 409,014 ​ $ 419,045 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Gross Profit ​ ​ ​ ​ ​ ​ ​ ​ ​ Public Carrier ​ $ 16,585 ​ $ 18,699 ​ $ 20,275 Value-added resellers and Integrators ​ ​ 51,131 ​ ​ 60,943 ​ ​ 64,130 Total gross profit ​ $ 67,716 ​ $ 79,642 ​ $ 84,405 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Stock Buyback

Stock Buyback	12 Months Ended
	Mar. 28, 2021
Stock Buyback
Stock Buyback	Note 10. Stock Buyback ​ The Company withholds shares of common stock from its employees and directors, at their request, equal to the minimum federal and state tax withholdings related to vested performance stock units, stock option exercises and restricted stock awards. For fiscal years 2021, 2020, and 2019 the total value of shares withheld for taxes was $121,500, $201,000, and $111,100, respectively.

Retirement of Treasury Stock

Retirement of Treasury Stock	12 Months Ended
	Mar. 28, 2021
Retirement of Treasury Stock
Retirement of Treasury Stock	Note 11. Retirement of Treasury Stock ​ On July 2, 2020, the Board of Directors adopted resolutions providing for the retirement of the Company’s then accumulated treasury stock, and for a corresponding reduction in capital. Immediately prior to the retirement, the Company held 5,789,600 shares of issued but not outstanding common stock as treasury stock, at a cost of $58,555,000. Upon retirement, the cost of the treasury stock was netted against retained earnings, and the number of authorized and unissued shares of common stock correspondingly increased by 5,789,600 shares. The total number of authorized shares of common stock remains unchanged at 15,000,000. There has been no change to the total stockholders’ equity as a result of such resolutions.

Income Taxes

Income Taxes	12 Months Ended
	Mar. 28, 2021
Income Taxes
Income Taxes	Note 12. Income Taxes ​ A reconciliation of the difference between the provision for income taxes computed at statutory rates and the provision for income taxes from continuing operations provided in the consolidated statements of income is as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2021 2020 2019 ​ ​ ​ ​ ​ ​ ​ Statutory federal rate 21.0 % 21.0 % 21.0 % State taxes, net of federal benefit 3.4 ​ 1.8 ​ (1.3) ​ Non-deductible expenses (1.2) ​ (0.7) ​ 2.2 ​ Change in uncertain tax positions ​ — ​ — ​ 2.8 ​ Change in valuation allowance ​ (7.6) ​ (2.9) ​ — ​ Rate change for loss carrybacks ​ 6.2 ​ 12.5 ​ — ​ Other (0.7) ​ 0.7 ​ — ​ Effective rate 21.1 % 32.4 % 24.7 % ​ The provision for income taxes from continuing operations was comprised of the following: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2021 2020 2019 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Federal: Current ​ $ (4,263,700) ​ $ (4,008,000) ​ $ (3,120,400) ​ Deferred ​ (48,200) ​ (2,642,800) ​ 509,400 ​ State: Current ​ 16,700 ​ (411,000) ​ (321,500) ​ Deferred ​ 450,700 ​ (413,000) ​ 18,700 ​ Benefit from income taxes ​ $ (3,844,500) ​ $ (7,474,800) ​ $ (2,913,800) ​ ​ Total net deferred tax assets (liabilities) as of March 28, 2021 and March 29, 2020, and the sources of the differences between financial accounting and tax basis of the Company's assets and liabilities which give rise to the deferred tax assets, are as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2021 2020 Deferred tax assets: ​ ​ ​ ​ ​ ​ ​ Deferred compensation ​ $ 163,600 ​ $ 264,300 ​ Accrued vacation ​ 362,600 ​ 469,100 ​ Deferred rent ​ 2,638,100 ​ 3,258,600 ​ Allowance for doubtful accounts ​ 357,300 ​ 1,130,900 ​ Inventory reserves ​ 766,300 ​ 2,794,200 ​ Sales tax reserves ​ 104,500 ​ 122,900 ​ Sales return assets ​ ​ 451,400 ​ ​ 1,200,400 ​ Net operating loss ​ ​ 518,500 ​ ​ 275,400 ​ Business interest limitation carryforward ​ ​ 383,800 ​ ​ 259,300 ​ Other assets ​ 925,900 ​ 1,013,600 ​ ​ ​ ​ 6,672,000 ​ ​ 10,788,700 ​ Valuation allowance ​ ​ (2,866,800) ​ ​ (2,047,300) ​ Total deferred tax assets ​ ​ 3,805,200 ​ ​ 8,741,400 ​ ​ ​ ​ ​ ​ ​ ​ ​ Deferred tax liabilities: ​ ​ ​ ​ ​ ​ ​ Depreciation and amortization ​ (214,600) ​ (419,200) ​ Sales return liabilities ​ (224,100) ​ ​ (950,600) ​ Lease right of use ​ ​ (2,589,600) ​ ​ (3,232,900) ​ Prepaid expenses and other liabilities ​ (803,400) ​ (1,106,200) ​ Total deferred tax liabilities ​ ​ (3,831,700) ​ ​ (5,708,900) ​ Net deferred tax (liability) assets ​ $ (26,500) ​ $ 3,032,500 ​ ​ The valuation allowance recorded by the Company as of March 28, 2021 and March 29, 2020 resulted from the uncertainties of the future realization of federal and state deferred tax assets. The Company will continue to assess and evaluate strategies that will enable the deferred tax asset, or portion thereof, to be realized, and will reduce the valuation allowance appropriately as such time when it is determined that the “more likely than not” criteria is satisfied. ​ As of March 28, 2021, the Company had state net operating loss carryforwards of $72,966,720 which will generally begin to expire in fiscal year 2030 through fiscal year 2040. Certain state net operating loss carryovers do not expire. ​ As of March 28, 2021 and March 29, 2020, the Company had no unrecognized tax benefits. ​ The Company’s accounting policy with respect to interest and penalties related to tax uncertainties is to classify these amounts as part of the provision for income taxes. The total amount of interest and penalties related to tax uncertainties recognized in the consolidated statement of income for fiscal year 2021, 2020 and 2019 was a benefit of $0, $0, and $250,500 (net of federal benefit), respectively. The cumulative amount included in the consolidated balance sheet as of March 28, 2021 and March 29, 2020 was $0. ​ A reconciliation of the changes in the gross balance of unrecognized tax benefit amounts, exclusive of interest, is as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2021 2020 2019 Beginning balance of unrecognized tax benefit ​ $ — ​ $ — ​ $ 112,700 ​ Increases related to current period tax positions ​ — ​ — ​ 3,500 ​ Reductions as a result of a lapse in the applicable statute of limitations ​ — ​ — ​ (116,200) ​ Ending balance of unrecognized tax benefits ​ $ — ​ $ — ​ $ — ​ ​ On December 22, 2017, President Trump signed into law the Tax Cuts and Jobs Act, which we refer to herein as the 2017 Tax Act. While the changes from the Tax Act were generally effective for tax years beginning after December 31, 2017, ASC No. 740, Accounting for Income Taxes, requires companies to recognize the effect of tax law changes in the period of enactment. Given the significance of the legislation, the SEC staff issued Staff Accounting Bulletin No. 118 (SAB 118), which allowed registrants to record provisional amounts in earnings for the year ended April 1, 2018. The Company was required to complete its tax accounting for the 2017 Tax Act when it had obtained, prepared and analyzed the information to complete the income tax accounting but no later than December 22, 2018. Accordingly, during fiscal year 2019, the Company completed its accounting for the tax effects of the enactment of the 2017 Tax Act based on the Company’s interpretation on the new tax regulations and related guidance issued by the U.S. Department of the Treasury and the IRS. The Company did not record a material adjustment in fiscal year 2019 to the provided provisional amount of $0.2 million. ​ On March 27, 2020, the Coronavirus Aid, Relief, and Economic Security Act (CARES Act) was signed into law making several changes to the Internal Revenue Code. The changes include but are not limited to: increasing the limitation on the amount of deductible business interest expense, allowing companies to carryback certain net operating losses to the preceding five years, and increasing the amount of net operating loss carryforwards that corporations can use to offset taxable income. ​ The Company files income tax returns in U.S. federal, state and local jurisdictions. Tax returns for fiscal years 2015 through 2021 remain open to examination by U.S. federal, state and local tax authorities. All state net operating losses generated to date are subject to adjustment for state income tax purposes.

Retirement Plans

Retirement Plans	12 Months Ended
	Mar. 28, 2021
Retirement Plans
Retirement Plans	​ Note 13. Retirement Plans ​ The Company has a 401(k) plan that covers all eligible employees. Contributions to the plan can be made by employees and the Company may make matching contributions at its discretion. Expense related to this matching contribution was $806,000, $937,500, and $957,100 during fiscal years 2021, 2020, and 2019, respectively. As of March 28, 2021, plan assets included 232,000 shares of common stock of the Company. ​ The Company maintains a Supplemental Executive Retirement Plan for Robert B. Barnhill, Jr., the Company’s Chairman of the Board. This plan is funded through life insurance policies for which the Company is the sole beneficiary. The cash surrender value of the life insurance policies and the net present value of the benefit obligation of approximately $2,680,700 and $809,400, respectively, as of March 28, 2021 March 29, 2020 ​

Earnings Per Share

Earnings Per Share	12 Months Ended
	Mar. 28, 2021
Earnings Per Share
Earnings Per Share	Note 14. Earnings Per Share ​ The Company presents the computation of earnings per share (“EPS”) on a basic and diluted basis. Basic EPS is computed by dividing net income by the weighted average number of shares outstanding during the reported period. Diluted earnings per share are computed similarly to basic earnings per share, except that the denominator is increased to include the number of additional common shares that would have been outstanding if the potential additional common shares that were dilutive had been issued. Shares of common stock are excluded from the calculation if they are determined to be anti-dilutive. In fiscal years 2021 and 2020, the Company had a net loss and accordingly recorded EPS by using only basic shares outstanding. ​ The following table presents the calculation of basic and diluted earnings per common share from continuing operations: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Amounts in thousands, except per share amounts Amounts in thousands, except per share amounts 2021 ​ 2020 2019 Earnings per share from continuing operations – Basic: ​ ​ ​ ​ ​ Net loss ​ $ (14,373) ​ $ (15,601) ​ $ (8,882) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted average common shares outstanding – Basic ​ 8,697 ​ 8,527 ​ 8,437 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Earnings per common share from continuing operations – Basic ​ $ (1.65) ​ $ (1.83) ​ $ (1.05) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Earnings per share – Diluted: ​ ​ ​ ​ ​ ​ ​ ​ ​ Net loss ​ $ (14,373) ​ $ (15,601) ​ $ (8,882) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted average common shares outstanding – Basic ​ 8,697 ​ 8,527 ​ 8,437 Effect of dilutive options ​ — ​ — ​ — Weighted average common shares outstanding – Diluted ​ 8,697 ​ 8,527 ​ 8,437 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Loss per common share from continuing operations – Diluted ​ $ (1.65) ​ $ (1.83) ​ $ (1.05) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Anti-dilutive equity awards not included above ​ 755 ​ 852 ​ 94 ​ At March 28, 2021, March 29, 2020, and March 31, 2019 stock options with respect to 925,000, 862,000 and 591,500 shares of common stock were outstanding, respectively. The anti-dilutive stock options outstanding at March 28, 2021, March 29, 2020, and March 31, 2019 total 755,000, 852,000 and 94,000, respectively. There were no anti-dilutive Performance Stock Units or Restricted Stock Units outstanding as of March 28, 2021, March 29, 2020, and March 31, 2019.

Stock-Based Compensation

Stock-Based Compensation	12 Months Ended
	Mar. 28, 2021
Stock-Based Compensation
Stock-Based Compensation	Note 15. Stock-Based Compensation ​ The Company’s selling, general and administrative expenses for the fiscal years ended March 28, 2021, March 29, 2020, and March 31, 2019 includes $1,211,000, $1,174,600, and $1,244,000, respectively, of stock compensation expense. Provision for income taxes for the fiscal years ended March 28, 2021, March 29, 2020, and March 31, 2019 includes $255,600, $386,100, and $307,300, respectively, of income tax benefits related to our stock-based compensation arrangements. Stock compensation expense is primarily related to our Performance Stock Units (PSUs), Restricted Stock Units (RSUs) and Stock Options, granted or outstanding under the Company’s Third Amended and Restated Stock and Incentive Plan (the “1994 Plan”) and 2019 Stock and Incentive Plan (the “2019 Plan” and together with the 1994 Plan, the “Plans), which was approved at the Annual Meeting of Shareholders held on July 25, 2019. No additional awards may be granted under the 1994 Plan, although awards outstanding under the 1994 Plan remain outstanding and governed by its terms. ​ As of March 28, 2021, 528,709 shares were available for issue in respect of future awards under the 2019 Plan. Subsequent to the Company’s 2021 fiscal year end, on May 15, 2021, the Compensation Committee of the Board of Directors with concurrence of the full Board of Directors, granted stock options to select key employees to purchase an aggregate of 187,500 shares of the Company’s common stock. In addition, as further discussed below, RSU awards for 12,000 shares and restricted stock awards for 22,252 shares were made on April 29, 2021, entitling the recipients to receive up to 34,252 shares of common stock in the aggregate, depending upon vesting. Accordingly, as of June 2, 2021, and after accounting for shares added back to the 2019 Plan in the interim, an aggregate of 303,279 shares were available for future awards under the 2019 Plan. ​ Performance Stock Units: participant remains employed by or associated with the Company at the time of share issuance. Earnings per share targets, which take into account the earnings impact of this program, are set by the Board of Directors in advance for the complete performance cycle at levels designed to grow shareholder value. If actual performance does not reach the minimum annual or threshold targets, no shares are issued. In accordance with ASC No. 718, the Company records compensation expense on its PSUs over the service period, based on the number of shares management estimates will ultimately be issued. Accordingly, the Company determines the periodic financial statement compensation expense based upon the stock price at the PSU grant date, net of the present value of dividends expected to be paid on Tessco common stock before the PSU vests, management’s projections of future EPS performance over the performance period, and the resulting amount of estimated share issuances. As discussed in Note 2 above, the ​ The following table summarizes the activity under the Company’s PSU program for fiscal years 2021, 2020 and 2019: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2021 2020 ​ 2019 ​ ​ ​ Weighted ​ ​ ​ Weighted ​ ​ Weighted ​ ​ ​ Average Fair ​ ​ ​ Average Fair ​ ​ Average Fair ​ ​ Shares ​ Value at Grant ​ Shares ​ Value at Grant ​ Shares ​ Value at Grant ​ Unvested shares available for issue under outstanding PSUs, beginning of period ​ 68,355 ​ $ 15.00 98,306 ​ $ 14.55 ​ 67,000 ​ $ 12.65 ​ PSUs Granted ​ — ​ — 51,616 ​ 15.93 ​ 71,000 ​ 15.58 ​ PSUs Vested ​ (21,690) ​ 14.21 (29,036) ​ 14.09 ​ (14,257) ​ 12.66 ​ PSUs Forfeited/Cancelled ​ (33,113) ​ 15.69 (52,532) ​ 9.82 ​ (25,437) ​ 13.46 ​ Unvested shares available for issue under outstanding PSUs, end of period ​ 13,552 ​ $ 14.57 68,355 ​ $ 15.00 ​ 98,306 ​ $ 14.55 ​ ​ As of March 28, 2021, there was $16,943 unrecognized compensation cost, related to PSUs earned. Total fair value of shares vested during fiscal years 2021, 2020 and 2019 was $103,300, $780,400 and $460,800, respectively. ​ The PSUs canceled during fiscal year 2021 primarily related to the fiscal year 2020 grant of PSUs which had a one-year measurement period (fiscal 2020) and employee departures. The PSUs were canceled because the minimum applicable fiscal 2020 performance targets were not fully satisfied. Per the provisions of the 2019 Plan, the shares related to these forfeited and canceled PSUs were added back to the 2019 Plan and became available for future issuance under the 2019 Plan. ​ The remaining 13,552 shares covered by PSUs outstanding at the end of fiscal year 2021 were earned based on fiscal year 2019 and 2018 performance, but were not yet vested as of March 28, 2021. Assuming the respective participants remain employed by, or affiliated with the Company, these shares will vest on or about May 1 of 2021 and 2022 as follows: ​ ​ ​ ​ ​ ​ Number of Shares Fiscal Year 2022 ​ 9,023 ​ Fiscal Year 2023 4,529 ​ ​ 13,552 ​ ​ Subsequent to the Company’s 2021 fiscal year end, on May 26, 2021, the Compensation Committee, with the concurrence of the full Board of Directors, granted an aggregate of 96,603 PSU awards to certain employees of the Company. These awards will be earned based on achievement of pre-defined EBITDA targets for the Company’s continuing operations and if earned, provide for the issuance of shares of the Company’s common stock in accordance with a vesting schedule. These awards, if earned, will vest and shares will be issued June 1, 2022 provided that the participant remains associated with the Company (or meets other criteria as prescribed in the agreement) on that date. ​ Restricted Stock/Restricted Stock Units: common stock in accordance with a vesting schedule. These awards have vested or will vest, and shares have been or will be issued, 25% on or about each of May 1 of 2019, 2020, 2021 and 2022, provided that the participant remains associated with the Company (or meets other criteria as prescribed in the agreement) on each such date. As of March 28, 2021, there was less than $0.1 million of total unrecognized compensation costs related to these awards. Unrecognized compensation costs related to these awards are expected to be recognized ratably over a period of approximately one years . ​ On May 10, 2019, the Compensation Committee, with the concurrence of the full Board of Directors, granted an aggregate of 21,000 RSU, ratably to the then six non-employee directors, including the then Chairman of the Board of the Company. These RSU awards provide for the issuance of shares of the Company’s common stock in four equal installments beginning on May 10, 2020 and continuing on the same date in 2021, 2022 and 2023, provided that the director remains associated with the Company on each such date (or meets other criteria as prescribed in the applicable award agreement). As of March 28, 2021, there was less than $0.1 million of total unrecognized compensation costs related to these awards. Unrecognized compensation costs related to these awards are expected to be recognized ratably over a period of approximately two years . ​ On May 15, 2020, July 24, 2020 and November 12, 2020, the Compensation Committee, with the concurrence of the full Board of Directors, granted an aggregate of 30,000 RSU awards to the then non-employee directors of the Company. These RSU awards provide for the issuance of shares of the Company’s common stock in accordance with a vesting schedule. These awards provide for vesting and that shares will be issued 25% on or about each of May 1 of 2021, 2022, 2023 and 2024, provided that the participant remains associated with the Company (or meets other criteria as prescribed in the agreement) on each such date. As of March 28, 2021, there was approximately $0.1 million of total unrecognized compensation costs related to these awards. Unrecognized compensation costs related to these awards are expected to be recognized ratably over a period of approximately three years . ​ In addition, and also on May 15, 2020 and July 24, 2020, the Compensation Committee, with the concurrence of the full Board of Directors, granted an aggregate of 72,202 shares of restricted stock to non-employee directors of the Company in lieu of their annual cash retainer for fiscal 2021. The amount of shares issued was the cash equivalent of the required retainers on the approval date. These awards provide for the issuance of shares of the Company’s common stock subject to a risk of forfeiture that will lapse in whole or in part in July 2021, generally depending on the length of continued service of the recipient on the Board for fiscal 2021. Dividends accruing in respect of the shares of restricted stock, if any, will accrue but will not be paid until July 1, 2021 and only in respect of those shares for which the risk of forfeiture has then lapsed. At March 28, 2021, 56,805 of these shares were expected to vest. ​ Changes in the composition of the Board during fiscal year 2021, in connection with or occurring during the term of a consent solicitation initiated by certain of our stockholders during the year resulted in the accelerated vesting of 30,000 of the current and prior year RSUs discussed in the previous two paragraphs and the issuance of a corresponding number of shares of Common Stock to departing directors. ​ Subsequent to the Company’s 2021 fiscal year end, on April 29, 2021, the Compensation Committee, with the concurrence of the full Board of Directors, granted an aggregate of 12,000 RSU awards to non-employee directors of the Company. These awards provide for the issuance of shares of the Company’s common stock in accordance with a vesting schedule. These awards will vest and shares will be issued 25% on or about each of April 29 of 2022, 2023, 2024 and 2025, provided that the participant remains associated with the Company (or meets other criteria as prescribed in the agreement) on each such date. ​ Also subsequent to the Company’s 2021 fiscal year end, on May 25, 2021, the Compensation Committee, with the concurrence of the full Board of Directors, granted an aggregate of 24,761 RSU awards to non-employee directors of the Company. These awards were awarded in lieu of the directors’ receiving estimated cash payments that would otherwise be received for attendance at Board and Committee meetings during fiscal 2022 and provide for the vesting and issuance of shares of the Company’s common stock to the non-employee director on May 25, 2022, provided that the director remains associated with the Company (or meets service and other criteria as prescribed in the agreement) on that date. ​ In addition, and also on April 29, 2021, the Compensation Committee, with the concurrence of the full Board of Directors, granted an aggregate of 22,252 shares of restricted stock to non-employee directors of the Company in lieu of their annual cash retainer for fiscal 2022. The amount of shares issued was the cash equivalent of the required retainers on the approval date. These awards provide for the issuance of shares of the Company’s common stock subject to a risk of forfeiture that will lapse in whole or in part on July 1, 2022, generally depending on the length of continued service of the recipient on the Board for fiscal 2022. Dividends accruing in respect of the shares of restricted stock, if any, will accrue but will not be paid until July 1, 2022 and only in respect of those shares for which the risk of forfeiture has then lapsed. ​ PSUs, RSUs and restricted stock awards are expensed based on the grant date fair value, calculated as the closing price of Tessco common stock as reported by Nasdaq on the date of grant minus, in the case of PSUs and RSUs, the present value of dividends expected to be paid on the common stock before the award vests, because dividends or dividend-equivalent amounts do not accrue and are not paid on unvested PSUs and RSUs. ​ The Company accounts for forfeitures as they occur rather than estimate expected forfeitures. To the extent that forfeitures occur, stock-based compensation related to the restricted awards may be different from the Company’s expectations. ​ Stock Options: The grant date value of the Company’s stock options has been determined using the Black-Scholes-Merton pricing model, based upon facts and assumptions existing at the date of grant. Stock options granted have exercise prices equal to the market price of the Company’s stock on the grant date. The stock options vest 25% after one year and then 1/36 per month for the following three years . During fiscal 2021, stock options for 177,042 shares were forfeited due to employee departures. The weighted-average remaining contractual term of options exercisable as of March 28, 2021 was 2.8 years. ​ The value of each option at the date of grant is amortized as compensation expense over the service period. This occurs without regard to subsequent changes in stock price, volatility or interest rates over time, provided the option remains outstanding. The following tables summarize the pertinent information for outstanding options. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2021 2020 ​ ​ ​ Weighted ​ ​ ​ Weighted ​ ​ ​ Average Fair ​ ​ ​ Average Fair ​ ​ Shares ​ Value at Grant ​ Shares ​ Value at Grant Unvested options, beginning of period ​ 465,374 ​ $ 2.38 281,292 ​ ​ 2.39 Options Granted ​ 240,000 ​ 2.05 405,000 ​ ​ 2.53 Options Forfeited/Cancelled ​ (127,625) ​ 3.13 (81,376) ​ ​ 3.23 Options Vested ​ (194,079) ​ 3.28 (139,542) ​ ​ 2.32 Unvested options, end of period ​ 383,670 ​ ​ 1.47 ​ 465,374 ​ ​ 2.38 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ March 28, 2021 Grant Fiscal Year ​ Options Granted ​ ​ Option Exercise Price ​ Options Outstanding ​ Options Exercisable 2021 ​ 240,000 ​ $ 4.70 ​ 165,000 ​ - 2020 ​ 405,000 ​ $ 13.54 ​ 341,000 ​ 138,788 2019 ​ 66,500 ​ $ 16.31 ​ 35,000 ​ 23,749 2018 ​ 230,000 ​ $ 15.12 ​ 80,000 ​ 74,791 2017 ​ 410,000 ​ $ 12.57 ​ 263,958 ​ 263,961 2016 ​ 100,000 ​ $ 22.42 ​ 40,000 ​ 40,000 Total ​ ​ ​ ​ ​ ​ 924,958 ​ 541,288 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Grant Fiscal Year ​ Expected Stock Price Volatility ​ Risk-Free Interest Rate ​ Expected Dividend Yield ​ Average Expected Term ​ Resulting Black Scholes Value 2021 ​ 46.82 % ​ 1.17 % ​ 0.00 % ​ 4.0 ​ $ 2.05 2020 ​ 35.88 % ​ 2.00 % ​ 5.82 % ​ 4.0 ​ $ 2.53 2019 ​ 35.59 % ​ 3.11 % ​ 4.99 % ​ 4.0 ​ $ 3.38 ​ As of March 28, 2021, there was approximately $0.8 million of total unrecognized compensation costs related to these awards. Unrecognized compensation costs related to these awards are expected to be recognized ratably over a period of approximately three years . Total value of options exercised during fiscal 2020 was $681,100 . 48,125 shares were exercised, and the weighted average exercise price of these shares was $14.15 . No options were exercised during fiscal 2021 or 2019. ​ On April 30, 2020, May 15, 2020, August 19, 2020 and February 8, 2021, the Compensation Committee, with the concurrence of the full Board of Directors, granted an aggregate of 165,000 stock options to select key employees. The grant date value of these stock options has been determined using the Black-Scholes-Merton pricing model, based upon facts and assumptions existing at the date of grant. Stock options granted have exercise prices equal to the market price of the Company’s stock on the grant date. The stock options vest 25% after one year and then 1/36 per month for the following three years . ​ On May 15, 2020, the Compensation Committee, with the concurrence of the full Board of Directors, granted an aggregate of 65,000 performance-based stock options to select key employees. The grant date value of these stock options has been determined using the Black-Scholes-Merton pricing model, based upon facts and assumptions existing at the date of grant. Stock options granted have exercise prices equal to the market price of the Company’s stock on the grant date. If certain performance-based milestones are met and the employee remains employed by the Company, the stock options vest 25% after one year and then 1/36 per month for the following three years . ​ Subsequent to the Company’s 2021 fiscal year end, on April 29, 2021, the Compensation Committee, with the concurrence of the full Board of Directors, granted an aggregate of 187,500 stock options to select key employees. The grant date value of these stock options has been determined using the Black-Scholes-Merton pricing model, based upon facts and assumptions existing at the date of grant. Stock options granted have exercise prices equal to the market price of the Company’s stock on the grant date. The stock options vest 25% after one year and then 1/36 per month for the following three years . ​ Team Member Stock Purchase Plan: The Company has a Team Member Stock Purchase Plan that permits eligible employees to purchase up to an aggregate of 450,000 shares of the Company's common stock at 85% of the lower 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 28, 2021, March 29, 2020, and March 31, 2019 were $61,500 , $78,400 , and $82,600 , respectively. During the fiscal years ended March 28, 2021, March 29, 2020, and March 31, 2019, 40,493 , 34,829 , and 19,183 shares were sold to employees under this plan, having a weighted average market value of $4.92 , $7.51 , and $14.54 , respectively.

Fair Value Disclosure

Fair Value Disclosure	12 Months Ended
	Mar. 28, 2021
Fair Value Disclosure
Fair Value Disclosure	Note 16. 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 28, 2021 and March 29, 2020, the Company has 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 28, 2021 and March 29, 2020 due to their short-term nature. ​

Supplemental Cash Flow Informat

Supplemental Cash Flow Information	12 Months Ended
	Mar. 28, 2021
Supplemental Cash Flow Information
Supplemental Cash Flow Information	Note 17. Supplemental Cash Flow Information ​ Cash paid for income taxes net of refunds, for fiscal years 2021, 2020, and 2019 totaled $21,000, $1,515,300, and $1,835,400, respectively. Cash paid for interest during fiscal years 2021, 2020, and 2019 totaled $952,700, $1,106,300, and $809,000, respectively. Interest capitalized during fiscal years 2021 and 2020 was $450,200 and $87,700, respectively. No interest was capitalized during fiscal year 2019.

Concentration of Risk Related t

Concentration of Risk Related to Continuing Operations	12 Months Ended
	Mar. 28, 2021
Concentration of Risk Related to Continuing Operations
Concentration of Risk Related to Continuing Operations	Note 18. 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 all of its supply of wireless communications equipment. For fiscal years 2021, 2020, and 2019, sales of products purchased from the Company's top ten suppliers accounted for 53%, 54%, and 50% of total revenues, respectively. Products purchased from the Company’s largest supplier related to continuing operations accounted for approximately 29%, 30%, and 24% of total revenues in fiscal years 2021, 2020, and 2019, respectively. 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. ​ As noted, the Company's future results could also be negatively impacted by the loss of certain customers, and/or supplier relationships. For fiscal years 2021, 2020, and 2019, sales of products to the Company's top ten customer relationships accounted for 34%, 34%, and 31% of total revenues, respectively. There was one customer that accounted for 11%, 15%, and 14% of total revenues in fiscal year 2021, 2020 and 2019, respectively. ​

Discontinued Operations

Discontinued Operations	12 Months Ended
	Mar. 28, 2021
Discontinued Operations
Discontinued Operations	Note 19. Discontinued Operations ​ On December 2, 2020, the Company sold most of its Retail inventory and certain other Retail-related assets to Voice Comm. In addition, we assigned or licensed Ventev ® ® ® ​ A pre-tax gain on disposal of $3.0 million was recorded in the fiscal quarter ended December 27, 2020, which is included in Income (loss) from discontinued operations, net of taxes in the Consolidated Statements of (Loss) Income. ​ The accompanying Consolidated Financial Statements for all periods presented reflect the results of the Retail segment as a discontinued operation. The following table presents the financial results of the Retail segment for the fiscal years ended March 28, 2021 March 29, 2020 March 31, 2019 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fiscal Years Ended ​ March 28, 2021 March 29, 2020 March 31, 2019 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Revenues ​ $ 86,728,300 ​ $ 131,283,900 ​ $ 187,769,000 ​ Cost of goods sold ​ 74,238,800 ​ 119,102,800 ​ 150,815,000 ​ Gross profit ​ 12,489,500 ​ 12,181,100 ​ 36,954,000 ​ Selling, general and administrative expenses ​ 7,652,100 ​ 15,809,500 ​ 17,866,700 ​ Goodwill impairment ​ ​ — ​ ​ 2,569,100 ​ ​ — ​ Income (loss) from operations ​ 4,837,400 ​ (6,197,500) ​ 19,087,300 ​ Gain on disposal ​ 3,020,800 ​ — ​ — ​ Income (loss) before provision for (benefit from) income taxes ​ 7,858,200 ​ (6,197,500) ​ 19,087,300 ​ Provision for (benefit from) income taxes ​ 2,227,800 ​ (230,000) ​ 4,659,200 ​ Net income (loss) attributable to discontinued operations ​ $ 5,630,400 ​ $ (5,967,500) ​ $ 14,428,100 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The financial results reflected above may not fully represent our former Retail segment stand-alone operating net profit, as the results reported within Income (loss) from discontinued operations, net of taxes, include only certain costs that are directly attributable to this former segment and exclude certain corporate overhead and operational costs that may have been previously allocated for each period. ​ The following table summarizes the major classes of assets attributable to discontinued operations that are included in the Current portion of assets held for sale in the Company’s consolidated balance sheets as of March 28, 2021 and March 29, 2020: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ March 28, March 29, ​ 2021 ​ 2020 ​ ​ ​ ​ ​ ASSETS ​ ​ ​ ​ ​ ​ ​ Product inventory, net ​ $ 1,196,900 ​ $ 18,849,900 ​ Current portion of assets held for sale ​ $ 1,196,900 ​ $ 18,849,900 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The product inventory remaining at March 28, 2021 represents Retail inventory that was not sold to Voice Comm. Management intends to sell through this inventory in the near term in alignment with its complete exit from the Retail business. ​ Discontinued operations related to this Retail sale in future years will primarily include: ● Revenue related to royalty income, purchase price adjustments and selling inventory from customer returns to Voice Comm ● Sale or liquidation of inventory continuing to be held for sale ● Product returns from customers ● Changes in estimates of inventory and returns reserves ● Minor operating expenses related to above items ​ In our Consolidated Statements of Cash Flows, the cash flows from discontinued operations are not separately classified. Cash provided by operating activities from discontinued operations during fiscal 2021, 2020, and 2019 was $13.2 million, $11.3 million, and $17.3 million, respectively. Cash provided by investing activities from discontinued operations during fiscal 2021, 2020, and 2019 was $9.2 million, $0 million, and $0 million, respectively.

Quarterly Results of Operations

Quarterly Results of Operations (Unaudited)	12 Months Ended
	Mar. 28, 2021
Quarterly Results of Operations (Unaudited)
Quarterly Results of Operations (Unaudited)	Note 20. Quarterly Results of Operations (Unaudited) ​ Summarized quarterly financial data for the fiscal years ended March 28, 2021 and March 29, 2020 is presented in the table below. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fiscal Year 2021 Quarters Ended ​ Fiscal Year 2020 Quarters Ended ​ ​ March 28, ​ December 27, ​ September 27, ​ June 28, ​ March 29, ​ December 29, ​ September 29, ​ June 30, ​ ​ 2021 ​ 2020 ​ 2020 ​ 2020 ​ 2020 ​ 2019 ​ 2019 ​ 2019 Revenues $ 88,733,100 $ 99,237,600 $ 88,892,400 $ 96,477,600 $ 105,839,700 $ 100,844,000 $ 103,651,000 $ 98,679,700 ​ Cost of goods sold ​ 71,907,100 ​ 81,921,900 ​ 71,771,200 ​ 80,024,900 ​ 86,251,300 ​ 81,196,300 ​ 83,466,700 ​ 78,458,200 ​ Gross profit ​ 16,826,000 ​ 17,315,700 ​ 17,121,200 ​ 16,452,700 ​ 19,588,400 ​ 19,647,700 ​ 20,184,300 ​ 20,221,500 ​ Selling, general and administrative expenses ​ 19,580,000 ​ 23,606,800 ​ 20,787,800 ​ 21,532,500 ​ 23,547,600 ​ 21,994,800 ​ 22,029,900 ​ 24,432,900 ​ Goodwill impairment ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 9,108,600 ​ ​ — ​ ​ — ​ ​ — ​ Restructuring charges ​ — ​ — ​ — ​ — ​ — ​ — ​ — ​ 488,000 ​ Operating expenses ​ 19,580,000 ​ 23,606,800 ​ 20,787,800 ​ 21,532,500 ​ 32,656,200 ​ 21,994,800 ​ 22,029,900 ​ 24,920,900 ​ Operating loss ​ (2,754,000) ​ (6,291,100) ​ (3,666,600) ​ (5,079,800) ​ (13,067,800) ​ (2,347,100) ​ (1,845,600) ​ (4,699,400) ​ Interest, net ​ 58,500 ​ 151,200 ​ 105,900 ​ 110,700 ​ 204,600 ​ 367,900 ​ 335,100 ​ 208,700 ​ Loss from continuing operations before (benefit from) provision for income taxes ​ (2,812,500) ​ (6,442,300) ​ (3,772,500) ​ (5,190,500) ​ (13,272,400) ​ (2,715,000) ​ (2,180,700) ​ (4,908,100) ​ (Benefit from) provision for income taxes ​ (1,958,000) ​ (740,400) ​ (824,300) ​ (321,800) ​ (5,297,200) ​ (641,000) ​ (109,600) ​ (1,427,000) ​ Net loss from continuing operations ​ $ (854,500) ​ $ (5,701,900) ​ $ (2,948,200) ​ $ (4,868,700) ​ $ (7,975,200) ​ $ (2,074,000) ​ $ (2,071,100) ​ $ (3,481,100) ​ (Loss) income from discontinued operations, net of taxes ​ ​ (2,075,700) ​ ​ 4,787,500 ​ ​ 2,681,300 ​ ​ 237,300 ​ ​ (6,101,500) ​ ​ (2,947,400) ​ ​ 2,093,100 ​ ​ 988,300 ​ Net (loss) income ​ $ (2,930,200) ​ $ (914,400) ​ $ (266,900) ​ $ (4,631,400) ​ $ (14,076,700) ​ $ (5,021,400) ​ $ 22,000 ​ $ (2,492,800) ​ Basic and diluted (loss) earnings per share from continuing operations ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Continuing operations ​ $ (0.10) ​ $ (0.66) ​ $ (0.34) ​ $ (0.56) ​ $ (0.93) ​ $ (0.24) ​ $ (0.24) ​ $ (0.41) ​ Discontinued operations ​ $ (0.24) ​ $ 0.55 ​ $ 0.31 ​ $ 0.03 ​ $ (0.71) ​ $ (0.35) ​ $ 0.24 ​ $ 0.12 ​ Consolidated operations ​ $ (0.33) ​ $ (0.11) ​ $ (0.03) ​ $ (0.54) ​ $ (1.65) ​ $ (0.59) ​ $ 0.00 ​ $ (0.29) ​ Basic weighted-average common shares outstanding ​ ​ 8,814,859 ​ ​ 8,699,937 ​ ​ 8,656,877 ​ ​ 8,617,803 ​ ​ 8,554,348 ​ ​ 8,541,020 ​ ​ 8,650,320 ​ ​ 8,494,168 ​ Effect of dilutive options and other equity instruments ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ Basic and diluted weighted-average common shares outstanding ​ ​ 8,814,859 ​ ​ 8,699,937 ​ ​ 8,656,877 ​ ​ 8,617,803 ​ ​ 8,554,348 ​ ​ 8,541,020 ​ ​ 8,650,320 ​ ​ 8,494,168 ​ Cash dividends declared per common share ​ $ — ​ $ — ​ $ — ​ $ — ​ $ 0.02 ​ $ 0.20 ​ $ 0.20 ​ $ 0.20 ​ ​

Schedule II - Valuation and Qua

Schedule II - Valuation and Qualifying Accounts	12 Months Ended
	Mar. 28, 2021
Schedule II - Valuation and Qualifying Accounts
Schedule II - Valuation and Qualifying Accounts	Schedule II: Valuation and Qualifying Accounts ​ For the fiscal years ended: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2021 2020 2019 Allowance for doubtful accounts: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance, beginning of period ​ $ 3,288,800 ​ $ 2,137,900 ​ $ 1,094,900 ​ Provision for bad debts and other adjustments ​ (971,600) ​ 2,100,400 ​ 1,721,200 ​ Write-offs ​ (733,000) ​ (949,500) ​ (678,200) ​ Balance, end of period ​ $ 1,584,200 ​ $ 3,288,800 ​ $ 2,137,900 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2021 2020 2019 Inventory Reserve: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance, beginning of period ​ $ 9,666,100 ​ $ 5,870,600 ​ $ 5,739,700 ​ Inventory reserve expense ​ 146,600 ​ 11,801,500 ​ 4,863,100 ​ Write-offs and other adjustments ​ (6,453,600) ​ (8,006,000) ​ (4,732,200) ​ Balance, end of period ​ $ 3,359,100 ​ $ 9,666,100 ​ $ 5,870,600 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2021 2020 2019 ​ Allowance for deferred tax asset: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance, beginning of period ​ $ 2,047,300 ​ $ 141,600 ​ $ — ​ Income tax expense ​ ​ 819,500 ​ ​ 1,905,700 ​ ​ 141,600 ​ Write-offs and other adjustments ​ ​ — ​ ​ — ​ ​ — ​ Balance, end of period ​ $ 2,866,800 ​ $ 2,047,300 ​ $ 141,600 ​ ​

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Mar. 28, 2021
Summary of Significant Accounting Policies
Principles of Consolidation	Principles of Consolidation ​ The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. Intercompany accounts and transactions have been eliminated in consolidation.
Fiscal Year	Fiscal Year ​ The Company's fiscal year is the 52 or 53 weeks ending on the Sunday falling on or between March 26 and April 1 to allow the financial year to better reflect the Company's natural weekly accounting and business cycle. The fiscal years ended March 28, 2021, March 29, 2020 and March 31, 2019 contained 52 weeks.
Reclassifications	Reclassifications ​ Certain prior period amounts have been reclassified to conform to current year presentations, including Income taxes receivable on the Company’s Consolidated Balance Sheets. The Company has filed for a refund with the IRS.
Cash and Cash Equivalents	Cash and Cash Equivalents ​ Cash and cash equivalents include cash and highly liquid investments with an original maturity of 90 days or less.
Allowance for Doubtful Accounts	Allowance for Doubtful Accounts ​ The Company uses estimates to determine the amount of the allowance for doubtful accounts necessary to reduce accounts receivable to their expected net realizable value. The Company estimates the amount of the required allowance by reviewing the status of past-due receivables and analyzing historical bad debt trends and current economic conditions. Actual collection experience has not varied significantly from estimates, due primarily to consistent credit policies, collection experience, as well as the Company’s stability as it relates to its current customer base. Typical payments from a large majority of commercial customers are due 30 days from the date of the invoice. The Company charges-off receivables deemed to be uncollectible to the allowance for doubtful accounts. Accounts receivable balances are not collateralized by our customers. At March 28, 2021 and March 29, 2020, the Company had a reserve for the allowance for doubtful accounts related to customers in continuing operations of $1,584,200 and $3,288,800, respectively.
Product Inventory	Product Inventory ​ Product inventory, consisting primarily of finished goods, is stated at the lower of cost or net realizable value, cost being determined on the first-in, first-out (“FIFO”) method and includes certain charges directly and indirectly incurred in bringing product inventories to the point of sale. Inventory is written down for estimated obsolescence equal to the difference between the cost of inventory and the estimated net realizable value, based upon specifically known inventory-related risks (such as technological obsolescence and the nature of supplier terms surrounding price protection and product returns), and assumptions about future demand. At March 28, 2021 and March 29, 2020, the Company had a reserve for excess and obsolete inventory of $3,359,000 and $9,666,100, respectively. At March 28, 2021 and March 29, 2020, the reserve for excess and obsolete inventory included balances related to the discontinued Retail operations of $81,000 and $6,350,800 respectively, which are included in the Current portion of assets held for sale on the Consolidated Balance Sheets. The reduction in the reserve is primarily related to the exit from the Retail business that occurred in fiscal year 2020. The reserve as of March 29, 2020 included reserves on retail inventory and were higher than normal levels due in part to concerns surrounding the COVID-19 pandemic at that time.
Property and Equipment	Property and Equipment ​ Property and equipment is stated at cost. Depreciation is recorded using the straight-line method over the estimated useful lives of the assets as follows: ​ ​ ​ ​ ​ ​ ​ ​ Useful lives ​ ​ ​ ​ ​ Information technology equipment 1 - 3 years Furniture, telephone system, equipment and tooling 3 - 10 years Building, building improvements and leasehold improvements 2 - 40 years ​ Leasehold improvements are amortized over the shorter of their useful lives or the remaining lease term.
Intangibles	Intangibles ​ The Company capitalizes computer software costs incurred in connection with developing or obtaining computer software for internal use when both the preliminary project stage is completed and when management authorizes and commits to funding the project and it is probable that the project will be completed. Development and acquisition costs are capitalized when the focus of the software project is either to develop new software, to increase the life of existing software or to add significantly to the functionality of existing software. Capitalization ceases when the software project is substantially complete and ready for its intended use. Amortization is recorded using the straight-line method over the estimated useful life which ranges from one
Impairment of Long-Lived Assets	Impairment of Long-Lived Assets ​ Long-lived assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset or group of assets may not be fully recoverable. These events or changes in circumstances may include a significant deterioration of operating results, changes in business plans, or changes in anticipated future cash flows. If an impairment indicator is present, the Company evaluates recoverability by a comparison of the carrying amount of the assets to future undiscounted net cash flows expected to be generated by the assets. Assets are grouped at the lowest level for which there are identifiable cash flows that are largely independent of the cash flows generated by other asset groups. If future undiscounted cash flows are less than the carrying value of the asset group, the Company calculates the fair value of the asset group. If the assets are impaired, the impairment recognized is measured by the amount by which the carrying amount exceeds the fair value of the assets. Fair value is generally determined by estimates of discounted cash flows. The discount rate used in any estimate of discounted cash flows would be the rate required for a similar investment of like risk. There were no impairment charges of long-lived assets other than goodwill, in fiscal years 2021, 2020, or 2019.
Indefinite-Lived Intangible Assets	Indefinite-Lived Intangible Assets ​ The indefinite lived intangible asset impairment test involves an initial qualitative analysis to determine if it is more likely than not that an intangible asset’s fair value is less than its carrying amount. If qualitative factors suggest a possible impairment, the Company then determines the fair value of the intangible asset. If the fair value of the intangible asset is less than its carrying value, an impairment loss is recognized for an amount equal to the difference. The intangible asset is then carried at its new fair value. We measure the fair value of our indefinite-lived intangible asset using the “relief from royalty” method. Significant estimates in this approach include projected revenues and royalty and discount rates. The estimates of discounted cash flows will likely change over time as impairment tests are performed. ​ Based on the Company’s quantitative impairment tests performed, the Company recognized a $11.7 million impairment loss on goodwill in fiscal year 2020 ($9.1 million related to continuing operations and $2.6 million related to discontinued operations). The Company did not recognize an impairment loss on goodwill or other indefinite lived intangible assets in fiscal years 2021 or 2019. ​ The methods of assessing fair value for our reporting units with goodwill as well as for indefinite lived assets require significant judgments to be made by management, including future revenues, expenses, cash flows and discount rates. Changes in such estimates or the application of alternative assumptions could produce significantly different results. ​
Other Long-Term Assets	Other Long-Term Assets ​ Other long-term assets consist of capitalized implementation costs of hosting arrangements, cash surrender value of life insurance policies related to a Supplemental Executive Retirement Plan (see Note 13), and deferred debt financing costs. Capitalized implementation costs of hosting arrangements that are accounted for as service contracts, which relate to our SAP ERP implementation, was $3.1 million and $0.8 million as of March 28, 2021 and March 29, 2020, respectively.
Revenue Recognition and Supplier Programs	Revenue Recognition ​ We account for revenue in accordance with ASC No. 606, Revenue from Contracts with Customers, which we adopted on April 2, 2018, using the modified retrospective method. We recognize revenue when control of promised goods is transferred to the customer. The amount of revenue recognized reflects the consideration to which the Company expects to be entitled in exchange for transferring the goods. ​ In most cases, shipments are made using FOB (freight on board) shipping terms. FOB destination terms are used for a portion of sales, and revenue for these sales is recorded when the product is received by the customer. Prices are always fixed at the time of sale. Historically, there have not been any material concessions provided to or by customers, future discounts provided by the Company, or other incentives subsequent to a sale. ​ We recognize revenues from sales transactions containing sales returns provisions at the time of the sale. The potential for customer returns are considered a component of variable consideration under ASC No. 606 and it is therefore considered when estimating the transaction price for a sale. We use the most likely amount method to determine the amount of expected returns. The amount of expected returns is recognized as a refund liability, representing the obligation to return the customer’s consideration. The return asset is measured at the former carrying amount of the inventory, less any expected costs to recover the goods, which is included in prepaid expenses and other current assets on the accompanying Consolidated Balance Sheets. ​ Our current and potential customers are continuing to look for ways to reduce their inventories and lower their total costs, including distribution, order taking and fulfillment costs, while still providing their customers excellent service. Some of these companies have turned to us to implement supply chain solutions, including purchasing inventory, assisting in demand forecasting, configuring, packaging, kitting and delivering products and managing customer and supplier relations, from order taking through cash collections. In performing these solutions, we assume varying levels of involvement in the transactions and varying levels of credit and inventory risk. As our offerings continually evolve to meet the needs of our customers, the Company constantly evaluates its revenue accounting based on the guidance set forth in accounting standards generally accepted in the United States. When applying this guidance in accordance with ASC No. 606, the Company looks at the following indicators: whether we are the primary obligor in the transaction; whether we have general inventory risk; whether we have latitude in establishing price; whether the customer holds us responsible for the acceptability of the product; whether the product returns are handled by us; and whether obligation exists between the other parties and our customer. Each of the Company’s customer relationships is independently evaluated based on the above guidance and revenues are recorded on the appropriate basis. Based on a review of the factors above, in the majority of the Company’s sales relationships, the Company has concluded that it is the principal in the transaction and records revenues based upon the gross amounts earned and booked. However, the Company does have relationships where it is not the principal and records revenues on a net fee basis, regardless of amounts billed (less than 1% of total revenues for fiscal year 2021). ​ Other than sales relating to the Company’s private brands, we offer no product warranties in excess of original equipment manufacturers’ warranties. Warranty expense was immaterial for fiscal years 2021, 2020, and 2019. ​ Supplier Programs ​ Funds received from suppliers for price protection, product rebates and marketing/promotion are recorded as a reduction in cost of goods sold in accordance with ASC No. 705-20: Cost of Sales and Services - Accounting for Consideration Received from a Vendor.
Shipping and Handling Costs	Shipping and Handling Costs ​ Shipping costs incurred to ship products from our distribution centers to our customers’ sites are included in selling, general and administrative expenses in the Consolidated Statements of (Loss) Income and totaled $10,036,100, $10,222,800, and $11,647,700 for fiscal years 2021, 2020, and 2019, respectively.
Stock Compensation Awards	Stock Compensation Awards ​ The Company records stock compensation expense for awards in accordance with ASC No. 718. The Company accounts for forfeitures as they occur rather than estimate expected forfeitures. The standard also requires stock awards granted or modified after the adoption of the standard that include both performance conditions and graded vesting based on service to the Company to be amortized by an accelerated method rather than the straight-line method.
Income Taxes	Income Taxes ​ The Company accounts for income taxes under the asset and liability method in accordance with ASC No. 740. Under this method, deferred income tax assets and liabilities arise from differences between the tax basis of assets or liabilities and their reported amounts in the financial statements. Deferred tax balances are determined by using the enacted tax rate to be in effect when the taxes are paid or refunds received. A valuation allowance related to deferred tax assets is recorded when it is more likely than not that some portion or all of the deferred tax assets will not be realized. ​ In accordance with ASC No. 740, no provision for tax uncertainties was determined to be necessary as of March 28, 2021, March 29, 2020 and March 31, 2019. ​
Use of Estimates	Use of Estimates ​ The preparation of financial statements in conformity with U.S. generally accepted accounting principles (GAAP) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. On an ongoing basis, the Company reviews and evaluates its estimates and assumptions, including but not limited to, those that relate to tax reserves, stock-based compensation, accounts receivable reserves, inventory reserves and future cash flows associated with impairment testing for long-lived assets. Actual results could significantly differ from those estimates.
Recently Issued Accounting Pronouncements	Recently issued accounting pronouncements not yet adopted: ​ In June 2016, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2016-13, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments which amends the impairment model by requiring entities to use a forward-looking approach based on expected losses rather than incurred losses to estimate credit losses on certain types of financial instruments, including trade receivables. This may result in the earlier recognition of allowances for losses. This ASU is effective for periods beginning after December 15, 2022. The Company is currently evaluating the impact the adoption of this new standard will have on its Consolidated Financial Statements and will adopt the standard on the first day of the Company’s 2024 fiscal year. ​ In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes, which simplifies the accounting for income taxes by eliminating certain exceptions to the guidance in ASC 740 related to the approach for intraperiod tax allocation, and the methodology for calculating income taxes in an interim period. This ASU is effective for periods beginning after December 15, 2020. The Company is currently evaluating the impact the adoption of this new standard will have on its Consolidated Financial Statements.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Mar. 28, 2021
Summary of Significant Accounting Policies
Property and Equipment Useful Life	​ ​ ​ ​ ​ ​ ​ ​ Useful lives ​ ​ ​ ​ ​ Information technology equipment 1 - 3 years Furniture, telephone system, equipment and tooling 3 - 10 years Building, building improvements and leasehold improvements 2 - 40 years

Property and Equipment (Tables)

Property and Equipment (Tables)	12 Months Ended
	Mar. 28, 2021
Property and Equipment
Property and Equipment	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2021 2020 ​ ​ ​ ​ ​ ​ ​ Land ​ $ 4,740,800 ​ $ 4,740,800 ​ Building, building improvements and leasehold improvements ​ 21,265,400 ​ 20,921,800 ​ Information technology equipment ​ 5,003,000 ​ 5,255,000 ​ Furniture, telephone system, equipment and tooling ​ 8,910,500 ​ 9,039,000 ​ ​ ​ 39,919,700 ​ 39,956,600 ​ Less accumulated depreciation ​ (27,348,100) ​ (26,522,900) ​ Property and equipment, net ​ $ 12,571,600 ​ $ 13,433,700 ​

Accrued expenses and other cu_2

Accrued expenses and other current liabilities (Tables)	12 Months Ended
	Mar. 28, 2021
Accrued expenses and other current liabilities
Accrued Expenses and Other Current Liabilities	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ March 28, 2021 March 29, 2020 Returns Reserve ​ $ 1,967,300 ​ $ 3,440,100 ​ Other Accrued Expenses ​ 945,000 ​ 804,300 ​ Total Accrued Expenses and other current liabilities ​ $ 2,912,300 ​ $ 4,244,400 ​

Leases (Tables)

Leases (Tables)	12 Months Ended
	Mar. 28, 2021
Leases
Schedule of maturities of lease liabilities	​ ​ ​ ​ ​ ​ ​ ​ ​ As of March 28, 2021 ​ Maturities of lease liabilities by fiscal year are as follow: ​ ​ ​ ​ 2022 ​ $ 3,164,000 ​ 2023 ​ ​ 3,018,300 ​ 2024 ​ ​ 2,725,700 ​ 2025 ​ ​ 2,609,900 ​ 2026 ​ ​ 1,987,600 ​ Total ​ ​ 13,505,500 ​ Less: present value discount ​ ​ (2,008,500) ​ Present value of lease liabilities ​ $ 11,497,000 ​ ​ ​ ​ ​ ​ Weighted-average discount rate: ​ ​ 3.9% ​ Weighted-average remaining lease term ​ ​ 4.5 years ​

Operating Segments (Tables)

Operating Segments (Tables)	12 Months Ended
	Mar. 28, 2021
Operating Segments
Schedule of Revenue and Gross Profit by Market	Market activity for the fiscal years ended 2021, 2020 and 2019 is as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended ​ ​ March 28, 2021 ​ March 29, 2020 ​ March 31, 2019 Revenues ​ ​ ​ ​ ​ ​ ​ ​ ​ Public Carrier ​ $ 149,825 ​ $ 156,395 ​ $ 156,983 Value-added resellers and Integrators ​ ​ 223,516 ​ ​ 252,619 ​ ​ 262,062 Total revenues ​ $ 373,341 ​ $ 409,014 ​ $ 419,045 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Gross Profit ​ ​ ​ ​ ​ ​ ​ ​ ​ Public Carrier ​ $ 16,585 ​ $ 18,699 ​ $ 20,275 Value-added resellers and Integrators ​ ​ 51,131 ​ ​ 60,943 ​ ​ 64,130 Total gross profit ​ $ 67,716 ​ $ 79,642 ​ $ 84,405 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Mar. 28, 2021
Income Taxes
Effective Income Tax Rate Reconciliation	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2021 2020 2019 ​ ​ ​ ​ ​ ​ ​ Statutory federal rate 21.0 % 21.0 % 21.0 % State taxes, net of federal benefit 3.4 ​ 1.8 ​ (1.3) ​ Non-deductible expenses (1.2) ​ (0.7) ​ 2.2 ​ Change in uncertain tax positions ​ — ​ — ​ 2.8 ​ Change in valuation allowance ​ (7.6) ​ (2.9) ​ — ​ Rate change for loss carrybacks ​ 6.2 ​ 12.5 ​ — ​ Other (0.7) ​ 0.7 ​ — ​ Effective rate 21.1 % 32.4 % 24.7 %
Provision for Income Taxes	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2021 2020 2019 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Federal: Current ​ $ (4,263,700) ​ $ (4,008,000) ​ $ (3,120,400) ​ Deferred ​ (48,200) ​ (2,642,800) ​ 509,400 ​ State: Current ​ 16,700 ​ (411,000) ​ (321,500) ​ Deferred ​ 450,700 ​ (413,000) ​ 18,700 ​ Benefit from income taxes ​ $ (3,844,500) ​ $ (7,474,800) ​ $ (2,913,800) ​
Deferred Tax Assets and Liabilities	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2021 2020 Deferred tax assets: ​ ​ ​ ​ ​ ​ ​ Deferred compensation ​ $ 163,600 ​ $ 264,300 ​ Accrued vacation ​ 362,600 ​ 469,100 ​ Deferred rent ​ 2,638,100 ​ 3,258,600 ​ Allowance for doubtful accounts ​ 357,300 ​ 1,130,900 ​ Inventory reserves ​ 766,300 ​ 2,794,200 ​ Sales tax reserves ​ 104,500 ​ 122,900 ​ Sales return assets ​ ​ 451,400 ​ ​ 1,200,400 ​ Net operating loss ​ ​ 518,500 ​ ​ 275,400 ​ Business interest limitation carryforward ​ ​ 383,800 ​ ​ 259,300 ​ Other assets ​ 925,900 ​ 1,013,600 ​ ​ ​ ​ 6,672,000 ​ ​ 10,788,700 ​ Valuation allowance ​ ​ (2,866,800) ​ ​ (2,047,300) ​ Total deferred tax assets ​ ​ 3,805,200 ​ ​ 8,741,400 ​ ​ ​ ​ ​ ​ ​ ​ ​ Deferred tax liabilities: ​ ​ ​ ​ ​ ​ ​ Depreciation and amortization ​ (214,600) ​ (419,200) ​ Sales return liabilities ​ (224,100) ​ ​ (950,600) ​ Lease right of use ​ ​ (2,589,600) ​ ​ (3,232,900) ​ Prepaid expenses and other liabilities ​ (803,400) ​ (1,106,200) ​ Total deferred tax liabilities ​ ​ (3,831,700) ​ ​ (5,708,900) ​ Net deferred tax (liability) assets ​ $ (26,500) ​ $ 3,032,500 ​
Reconciliation of changes in unrecognized tax benefit amounts, net of interest	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2021 2020 2019 Beginning balance of unrecognized tax benefit ​ $ — ​ $ — ​ $ 112,700 ​ Increases related to current period tax positions ​ — ​ — ​ 3,500 ​ Reductions as a result of a lapse in the applicable statute of limitations ​ — ​ — ​ (116,200) ​ Ending balance of unrecognized tax benefits ​ $ — ​ $ — ​ $ — ​

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Mar. 28, 2021
Earnings Per Share
Calculation of Basic and Diluted Earnings Per Common Share	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Amounts in thousands, except per share amounts Amounts in thousands, except per share amounts 2021 ​ 2020 2019 Earnings per share from continuing operations – Basic: ​ ​ ​ ​ ​ Net loss ​ $ (14,373) ​ $ (15,601) ​ $ (8,882) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted average common shares outstanding – Basic ​ 8,697 ​ 8,527 ​ 8,437 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Earnings per common share from continuing operations – Basic ​ $ (1.65) ​ $ (1.83) ​ $ (1.05) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Earnings per share – Diluted: ​ ​ ​ ​ ​ ​ ​ ​ ​ Net loss ​ $ (14,373) ​ $ (15,601) ​ $ (8,882) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted average common shares outstanding – Basic ​ 8,697 ​ 8,527 ​ 8,437 Effect of dilutive options ​ — ​ — ​ — Weighted average common shares outstanding – Diluted ​ 8,697 ​ 8,527 ​ 8,437 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Loss per common share from continuing operations – Diluted ​ $ (1.65) ​ $ (1.83) ​ $ (1.05) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Anti-dilutive equity awards not included above ​ 755 ​ 852 ​ 94

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	12 Months Ended
	Mar. 28, 2021
Stock-Based Compensation
Schedule of Performance Stock Unit activity	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2021 2020 ​ 2019 ​ ​ ​ Weighted ​ ​ ​ Weighted ​ ​ Weighted ​ ​ ​ Average Fair ​ ​ ​ Average Fair ​ ​ Average Fair ​ ​ Shares ​ Value at Grant ​ Shares ​ Value at Grant ​ Shares ​ Value at Grant ​ Unvested shares available for issue under outstanding PSUs, beginning of period ​ 68,355 ​ $ 15.00 98,306 ​ $ 14.55 ​ 67,000 ​ $ 12.65 ​ PSUs Granted ​ — ​ — 51,616 ​ 15.93 ​ 71,000 ​ 15.58 ​ PSUs Vested ​ (21,690) ​ 14.21 (29,036) ​ 14.09 ​ (14,257) ​ 12.66 ​ PSUs Forfeited/Cancelled ​ (33,113) ​ 15.69 (52,532) ​ 9.82 ​ (25,437) ​ 13.46 ​ Unvested shares available for issue under outstanding PSUs, end of period ​ 13,552 ​ $ 14.57 68,355 ​ $ 15.00 ​ 98,306 ​ $ 14.55 ​
Nonvested Performance-based Units expected to vest by period	​ ​ ​ ​ ​ ​ Number of Shares Fiscal Year 2022 ​ 9,023 ​ Fiscal Year 2023 4,529 ​ ​ 13,552 ​
Schedule of Stock Options	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2021 2020 ​ ​ ​ Weighted ​ ​ ​ Weighted ​ ​ ​ Average Fair ​ ​ ​ Average Fair ​ ​ Shares ​ Value at Grant ​ Shares ​ Value at Grant Unvested options, beginning of period ​ 465,374 ​ $ 2.38 281,292 ​ ​ 2.39 Options Granted ​ 240,000 ​ 2.05 405,000 ​ ​ 2.53 Options Forfeited/Cancelled ​ (127,625) ​ 3.13 (81,376) ​ ​ 3.23 Options Vested ​ (194,079) ​ 3.28 (139,542) ​ ​ 2.32 Unvested options, end of period ​ 383,670 ​ ​ 1.47 ​ 465,374 ​ ​ 2.38 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ March 28, 2021 Grant Fiscal Year ​ Options Granted ​ ​ Option Exercise Price ​ Options Outstanding ​ Options Exercisable 2021 ​ 240,000 ​ $ 4.70 ​ 165,000 ​ - 2020 ​ 405,000 ​ $ 13.54 ​ 341,000 ​ 138,788 2019 ​ 66,500 ​ $ 16.31 ​ 35,000 ​ 23,749 2018 ​ 230,000 ​ $ 15.12 ​ 80,000 ​ 74,791 2017 ​ 410,000 ​ $ 12.57 ​ 263,958 ​ 263,961 2016 ​ 100,000 ​ $ 22.42 ​ 40,000 ​ 40,000 Total ​ ​ ​ ​ ​ ​ 924,958 ​ 541,288
Schedule of assumptions of Black-Scholes-Merton option pricing model	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Grant Fiscal Year ​ Expected Stock Price Volatility ​ Risk-Free Interest Rate ​ Expected Dividend Yield ​ Average Expected Term ​ Resulting Black Scholes Value 2021 ​ 46.82 % ​ 1.17 % ​ 0.00 % ​ 4.0 ​ $ 2.05 2020 ​ 35.88 % ​ 2.00 % ​ 5.82 % ​ 4.0 ​ $ 2.53 2019 ​ 35.59 % ​ 3.11 % ​ 4.99 % ​ 4.0 ​ $ 3.38

Discontinued Operations (Tables

Discontinued Operations (Tables)	12 Months Ended
	Mar. 28, 2021
Discontinued Operations
Summary of financial results of the retail segment discontinued operations	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fiscal Years Ended ​ March 28, 2021 March 29, 2020 March 31, 2019 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Revenues ​ $ 86,728,300 ​ $ 131,283,900 ​ $ 187,769,000 ​ Cost of goods sold ​ 74,238,800 ​ 119,102,800 ​ 150,815,000 ​ Gross profit ​ 12,489,500 ​ 12,181,100 ​ 36,954,000 ​ Selling, general and administrative expenses ​ 7,652,100 ​ 15,809,500 ​ 17,866,700 ​ Goodwill impairment ​ ​ — ​ ​ 2,569,100 ​ ​ — ​ Income (loss) from operations ​ 4,837,400 ​ (6,197,500) ​ 19,087,300 ​ Gain on disposal ​ 3,020,800 ​ — ​ — ​ Income (loss) before provision for (benefit from) income taxes ​ 7,858,200 ​ (6,197,500) ​ 19,087,300 ​ Provision for (benefit from) income taxes ​ 2,227,800 ​ (230,000) ​ 4,659,200 ​ Net income (loss) attributable to discontinued operations ​ $ 5,630,400 ​ $ (5,967,500) ​ $ 14,428,100 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ March 28, March 29, ​ 2021 ​ 2020 ​ ​ ​ ​ ​ ASSETS ​ ​ ​ ​ ​ ​ ​ Product inventory, net ​ $ 1,196,900 ​ $ 18,849,900 ​ Current portion of assets held for sale ​ $ 1,196,900 ​ $ 18,849,900 ​ ​ ​ ​ ​ ​ ​ ​ ​

Quarterly Results of Operatio_2

Quarterly Results of Operations (Unaudited) (Tables)	12 Months Ended
	Mar. 28, 2021
Quarterly Results of Operations (Unaudited)
Summarized Quarterly Financial Data	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fiscal Year 2021 Quarters Ended ​ Fiscal Year 2020 Quarters Ended ​ ​ March 28, ​ December 27, ​ September 27, ​ June 28, ​ March 29, ​ December 29, ​ September 29, ​ June 30, ​ ​ 2021 ​ 2020 ​ 2020 ​ 2020 ​ 2020 ​ 2019 ​ 2019 ​ 2019 Revenues $ 88,733,100 $ 99,237,600 $ 88,892,400 $ 96,477,600 $ 105,839,700 $ 100,844,000 $ 103,651,000 $ 98,679,700 ​ Cost of goods sold ​ 71,907,100 ​ 81,921,900 ​ 71,771,200 ​ 80,024,900 ​ 86,251,300 ​ 81,196,300 ​ 83,466,700 ​ 78,458,200 ​ Gross profit ​ 16,826,000 ​ 17,315,700 ​ 17,121,200 ​ 16,452,700 ​ 19,588,400 ​ 19,647,700 ​ 20,184,300 ​ 20,221,500 ​ Selling, general and administrative expenses ​ 19,580,000 ​ 23,606,800 ​ 20,787,800 ​ 21,532,500 ​ 23,547,600 ​ 21,994,800 ​ 22,029,900 ​ 24,432,900 ​ Goodwill impairment ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 9,108,600 ​ ​ — ​ ​ — ​ ​ — ​ Restructuring charges ​ — ​ — ​ — ​ — ​ — ​ — ​ — ​ 488,000 ​ Operating expenses ​ 19,580,000 ​ 23,606,800 ​ 20,787,800 ​ 21,532,500 ​ 32,656,200 ​ 21,994,800 ​ 22,029,900 ​ 24,920,900 ​ Operating loss ​ (2,754,000) ​ (6,291,100) ​ (3,666,600) ​ (5,079,800) ​ (13,067,800) ​ (2,347,100) ​ (1,845,600) ​ (4,699,400) ​ Interest, net ​ 58,500 ​ 151,200 ​ 105,900 ​ 110,700 ​ 204,600 ​ 367,900 ​ 335,100 ​ 208,700 ​ Loss from continuing operations before (benefit from) provision for income taxes ​ (2,812,500) ​ (6,442,300) ​ (3,772,500) ​ (5,190,500) ​ (13,272,400) ​ (2,715,000) ​ (2,180,700) ​ (4,908,100) ​ (Benefit from) provision for income taxes ​ (1,958,000) ​ (740,400) ​ (824,300) ​ (321,800) ​ (5,297,200) ​ (641,000) ​ (109,600) ​ (1,427,000) ​ Net loss from continuing operations ​ $ (854,500) ​ $ (5,701,900) ​ $ (2,948,200) ​ $ (4,868,700) ​ $ (7,975,200) ​ $ (2,074,000) ​ $ (2,071,100) ​ $ (3,481,100) ​ (Loss) income from discontinued operations, net of taxes ​ ​ (2,075,700) ​ ​ 4,787,500 ​ ​ 2,681,300 ​ ​ 237,300 ​ ​ (6,101,500) ​ ​ (2,947,400) ​ ​ 2,093,100 ​ ​ 988,300 ​ Net (loss) income ​ $ (2,930,200) ​ $ (914,400) ​ $ (266,900) ​ $ (4,631,400) ​ $ (14,076,700) ​ $ (5,021,400) ​ $ 22,000 ​ $ (2,492,800) ​ Basic and diluted (loss) earnings per share from continuing operations ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Continuing operations ​ $ (0.10) ​ $ (0.66) ​ $ (0.34) ​ $ (0.56) ​ $ (0.93) ​ $ (0.24) ​ $ (0.24) ​ $ (0.41) ​ Discontinued operations ​ $ (0.24) ​ $ 0.55 ​ $ 0.31 ​ $ 0.03 ​ $ (0.71) ​ $ (0.35) ​ $ 0.24 ​ $ 0.12 ​ Consolidated operations ​ $ (0.33) ​ $ (0.11) ​ $ (0.03) ​ $ (0.54) ​ $ (1.65) ​ $ (0.59) ​ $ 0.00 ​ $ (0.29) ​ Basic weighted-average common shares outstanding ​ ​ 8,814,859 ​ ​ 8,699,937 ​ ​ 8,656,877 ​ ​ 8,617,803 ​ ​ 8,554,348 ​ ​ 8,541,020 ​ ​ 8,650,320 ​ ​ 8,494,168 ​ Effect of dilutive options and other equity instruments ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ Basic and diluted weighted-average common shares outstanding ​ ​ 8,814,859 ​ ​ 8,699,937 ​ ​ 8,656,877 ​ ​ 8,617,803 ​ ​ 8,554,348 ​ ​ 8,541,020 ​ ​ 8,650,320 ​ ​ 8,494,168 ​ Cash dividends declared per common share ​ $ — ​ $ — ​ $ — ​ $ — ​ $ 0.02 ​ $ 0.20 ​ $ 0.20 ​ $ 0.20 ​

Organization (Details)

Organization (Details)	12 Months Ended
	Mar. 28, 2021
US | Geographic Concentration Risk | Revenue
Concentration Risk
Concentration risk (as a percent)	97.00%

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - FY, Allowance for Doubtful Accounts and Inventory (Details) - USD ($)	12 Months Ended
	Mar. 28, 2021	Mar. 29, 2020	Mar. 31, 2019
Fiscal Year
Fiscal year duration	364 days	364 days	364 days
Allowance for Doubtful Accounts
Payment period from large majority of commercial customers	30 days
Allowance for doubtful accounts	$ 1,584,200	$ 3,288,800
Product Inventory
Reserves for excess or obsolescence inventory	3,359,000	9,666,100
Current portion of assets held for sale, reserve for excess and obsolete inventory	$ 81,000	$ 6,350,800
Minimum
Fiscal Year
Fiscal year duration	364 days
Maximum
Fiscal Year
Fiscal year duration	371 days

Summary of Significant Accoun_5

Summary of Significant Accounting Policies - Property, Equipment (Details)	12 Months Ended
	Mar. 28, 2021
Minimum | Information technology equipment
Property and Equipment
Useful Lives	1 year
Minimum | Furniture, telephone system, equipment and tooling
Property and Equipment
Useful Lives	3 years
Minimum | Building, building improvements and leasehold improvements
Property and Equipment
Useful Lives	2 years
Maximum | Information technology equipment
Property and Equipment
Useful Lives	3 years
Maximum | Furniture, telephone system, equipment and tooling
Property and Equipment
Useful Lives	10 years
Maximum | Building, building improvements and leasehold improvements
Property and Equipment
Useful Lives	40 years

Summary of Significant Accoun_6

Summary of Significant Accounting Policies - Intangibles (Details) - USD ($)	12 Months Ended
	Mar. 28, 2021	Mar. 29, 2020	Mar. 31, 2019
Impairment of Long-Lived Assets
Impairment charges	$ 0	$ 0	$ 0
Internally developed computer software | Minimum
Intangibles and Other Long-Lived Assets
Useful life	1 year
Internally developed computer software | Maximum
Intangibles and Other Long-Lived Assets
Useful life	3 years

Summary of Significant Accoun_7

Summary of Significant Accounting Policies - Indefinite-Lived Intangible Assets and Other Long-Lived Assets (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 29, 2020	Mar. 28, 2021	Mar. 29, 2020	Mar. 31, 2019
Summary of Significant Accounting Policies
Goodwill impairment, Continuing operations and discontinued operations			$ 11,677,700
Goodwill impairment, Continuing operations	$ 9,108,600		9,108,600
Goodwill impairment, Discontinued operations	2,600,000		2,600,000
Impairment loss on goodwill or other indefinite lived intangible assets		$ 0		$ 0
Other Long-Term Assets
Capitalized implementation costs	$ 800,000	$ 3,100,000	$ 800,000

Summary of Significant Accoun_8

Summary of Significant Accounting Policies - Revenue Recognition, Expenses and Shipping and Handling Costs (Details) - USD ($)	12 Months Ended
	Mar. 28, 2021	Mar. 29, 2020	Mar. 31, 2019
Shipping and Handling Costs
Shipping and handling costs	$ 10,036,100	$ 10,222,800	$ 11,647,700
Income Taxes
Cumulative amount of interest and penalties related to tax uncertainties	$ 0	$ 0	$ 0
Maximum
Revenue Recognition
Revenue recorded on net fee basis (as a percent)	1.00%

Property and Equipment - (Detai

Property and Equipment - (Details) - USD ($)	12 Months Ended
	Mar. 28, 2021	Mar. 29, 2020	Mar. 31, 2019
Property and Equipment
Property and equipment, gross	$ 39,919,700	$ 39,956,600
Less accumulated depreciation	(27,348,100)	(26,522,900)
Property and equipment, net	12,571,600	13,433,700
Depreciation	1,667,500	1,683,000	$ 1,507,300
Land
Property and Equipment
Property and equipment, gross	4,740,800	4,740,800
Building, building improvements and leasehold improvements
Property and Equipment
Property and equipment, gross	21,265,400	20,921,800
Information technology equipment
Property and Equipment
Property and equipment, gross	5,003,000	5,255,000
Furniture, telephone system, equipment and tooling
Property and Equipment
Property and equipment, gross	$ 8,910,500	$ 9,039,000

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets - (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 29, 2020	Mar. 28, 2021	Mar. 29, 2020	Mar. 31, 2019
Goodwill and Other Intangible Assets
Goodwill impairment, Continuing operations	$ 9,108,600		$ 9,108,600
Goodwill impairment, Discontinued operations	2,600,000		2,600,000
Goodwill		$ 0
Capitalized computer software		18,341,100		$ 10,362,100
Indefinite lived intangible assets	$ 795,400	795,400	795,400
Internally developed computer software
Goodwill and Other Intangible Assets
Amortization expense		$ 2,077,000	$ 1,954,700	$ 1,620,800

Accrued expenses and other cu_3

Accrued expenses and other current liabilities - (Details) - USD ($)	Mar. 28, 2021	Mar. 29, 2020
Accrued expenses and other current liabilities
Returns Reserve	$ 1,967,300	$ 3,440,100
Other Accrued Expenses	945,000	804,300
Total Accrued Expenses and other current liabilities	2,912,300	4,244,400
Return asset	1,000,000	2,700,000
Return liability	$ 2,000,000	$ 3,400,000

Borrowings Under Revolving Cr_2

Borrowings Under Revolving Credit Facility - Credit Agreements (Details)	Oct. 29, 2020USD ($)item	Mar. 28, 2021USD ($)	Mar. 29, 2020USD ($)	Oct. 19, 2017USD ($)	Jun. 24, 2016USD ($)
Credit Facility
Interest expense		$ 556,100
Capitalized interest		450,200
Average borrowings during period		34,404,500
Maximum borrowings during period		$ 43,283,000
Revolving Credit Facility
Credit Facility
Maximum borrowing capacity				$ 75,000,000	$ 35,000,000
Interest rate (as a percent)			3.09%
Commitment fee on unused portion of revolving credit facility (as a percent)			0.25%
Weighted average interest rate during the period (as a percent)		2.89%	3.52%
Interest expense			$ 1,114,900
Average borrowings during period			33,755,700
Maximum borrowings during period			56,069,900
Financial covenant threshold			65,000,000
Minimum borrowing availability threshold required for paying dividends			15,000,000
Minimum borrowing availability threshold required for paying dividends, Limited circumstances			11,300,000
Maximum amount of shares that may be repurchased in twelve consecutive month period in connection with payment of tax withholding obligations under equity compensation plans			$ 2,000,000
Consecutive period for limit on share repurchase amount			12 months
Maximum amount of dividends and repurchase of shares			$ 1,800,000
Outstanding balance			25,600,000
Available borrowing capacity			49,400,000
Revolving Credit Facility | Maximum
Credit Facility
Maximum borrowings during period			$ 65,000,000
2020 Revolving Credit Facility
Credit Facility
Maximum borrowing capacity	$ 75,000,000
Debt instrument term	42 months
Maximum aggregate commitment amount	$ 125,000,000
Borrowing base as a percent of eligible accounts	85.00%
Interest rate (as a percent)		4.50%
Increase of applicable rate upon event of default (as a percent)	2.00%
Commitment fee on unused portion of revolving credit facility (as a percent)	0.25%	0.25%
Number of financial covenants | item	1
Percentage of maximum amount of credit facility	16.70%
Debt instrument, excess availability amount	$ 12,525,000
Debt instrument, excess availability, amount threshold	$ 12,500,000
Maximum amount of shares that may be repurchased in twelve consecutive month period in connection with payment of tax withholding obligations under equity compensation plans		$ 2,000,000
Consecutive period for limit on share repurchase amount		12 months
Minimum average excess availability threshold required for paying dividends		$ 18,750,000
Period for determining average excess availability threshold required for paying dividend		30 days
Minimum daily excess availability threshold required for paying dividends		$ 12,500,000
Maximum amount of dividends and repurchase of shares per quarter		625,000
Maximum amount of dividends and repurchase of shares		2,500,000
Outstanding balance		30,600,000
Available borrowing capacity		$ 44,400,000
2020 Revolving Credit Facility | Minimum
Credit Facility
Inventory age	180 days
2020 Revolving Credit Facility | Maximum
Credit Facility
Inventory age	181 days
Amount included in formula to determine borrowing base	$ 4,000,000
2020 Revolving Credit Facility | LIBOR
Credit Facility
Interest rate spread on variable rate basis (as a percent)	2.25%
Floor percentage	0.25%
2020 Revolving Credit Facility | LIBOR | Debt Instrument Covenant, If Fixed Coverage Ratio is Less Than 1.10
Credit Facility
Fixed charge coverage ratio	1.10
Interest rate spread on variable rate basis (as a percent)	2.25%
2020 Revolving Credit Facility | LIBOR | Debt Instrument Covenant, If Fixed Coverage Ratio is Greater Than Or Equal To 1.10
Credit Facility
Fixed charge coverage ratio	1.10
Interest rate spread on variable rate basis (as a percent)	2.00%
2020 Revolving Credit Facility | Base rate
Credit Facility
Interest rate spread on variable rate basis (as a percent)	1.25%
2020 Revolving Credit Facility | Base rate | Debt Instrument Covenant, If Fixed Coverage Ratio is Less Than 1.10
Credit Facility
Fixed charge coverage ratio	1.10
Interest rate spread on variable rate basis (as a percent)	1.25%
2020 Revolving Credit Facility | Base rate | Debt Instrument Covenant, If Fixed Coverage Ratio is Greater Than Or Equal To 1.10
Credit Facility
Fixed charge coverage ratio	1.10
Interest rate spread on variable rate basis (as a percent)	1.00%
2020 Revolving Credit Facility | Letter of Credit
Credit Facility
Maximum borrowing capacity	$ 5,000,000

Leases - Office space (Details)

Leases - Office space (Details) - USD ($)	12 Months Ended
	Mar. 28, 2021	Mar. 29, 2020	Mar. 31, 2019
Leases
Rent expense	$ 3,453,500	$ 3,046,000
Rent expense			$ 3,001,800
Minimum
Leases
Lease term	1 year
Maximum
Leases
Lease term	5 years
Leased office space, Timonium, Maryland | Minimum
Leases
Base rental rate per month	$ 183,000
Leased office space, Timonium, Maryland | Maximum
Leases
Base rental rate per month	203,800
Leased office space, Hunt Valley, Maryland | Minimum
Leases
Base rental rate per month	40,500
Leased office space, Hunt Valley, Maryland | Maximum
Leases
Base rental rate per month	43,000
Leased office and warehouse space, San Antonio, Texas
Leases
Base rental rate per month	$ 19,100

Leases - Quantitative informati

Leases - Quantitative information (Details)	Mar. 28, 2021USD ($)
Maturities of discounted lease liabilities by fiscal year are as follow:
2022	$ 3,164,000
2023	3,018,300
2024	2,725,700
2025	2,609,900
2026	1,987,600
Total	13,505,500
Less: present value discount	(2,008,500)
Present value of lease liabilities	$ 11,497,000
Weighted-average discount rate:	3.90%
Weighted-average remaining lease term	4 years 6 months

Operating Segments - Segment Ac

Operating Segments - Segment Activity (Details)	3 Months Ended								12 Months Ended
	Mar. 28, 2021USD ($)	Dec. 27, 2020USD ($)	Sep. 27, 2020USD ($)	Jun. 28, 2020USD ($)	Mar. 29, 2020USD ($)	Dec. 29, 2019USD ($)	Sep. 29, 2019USD ($)	Jun. 30, 2019USD ($)	Mar. 28, 2021USD ($)segment	Mar. 29, 2020USD ($)	Mar. 31, 2019USD ($)
Business Segment
Number of reportable segment | segment									1
Market unit activity
Revenues	$ 88,733,100	$ 99,237,600	$ 88,892,400	$ 96,477,600	$ 105,839,700	$ 100,844,000	$ 103,651,000	$ 98,679,700	$ 373,340,700	$ 409,014,400	$ 419,044,800
Gross Profit	$ 16,826,000	$ 17,315,700	$ 17,121,200	$ 16,452,700	$ 19,588,400	$ 19,647,700	$ 20,184,300	$ 20,221,500	67,715,600	79,641,900	84,404,700
Public carrier
Market unit activity
Revenues									149,825,000	156,395,000	156,983,000
Gross Profit									16,585,000	18,699,000	20,275,000
Value-added resellers and integrators
Market unit activity
Revenues									223,516,000	252,619,000	262,062,000
Gross Profit									$ 51,131,000	$ 60,943,000	$ 64,130,000

Stock Buyback (Details)

Stock Buyback (Details) - USD ($)	12 Months Ended
	Mar. 28, 2021	Mar. 29, 2020	Mar. 31, 2019
Stock Buyback
Tax withholding for share based compensation	$ 121,500	$ 201,000	$ 111,100

Retirement of Treasury Stock (D

Retirement of Treasury Stock (Details) - USD ($)	Jul. 02, 2020	Mar. 28, 2021	Jun. 28, 2020	Mar. 29, 2020
Treasury stock (in shares)		10,250	5,789,600	5,776,819
Treasury stock at cost		$ 62,800		$ 58,496,200
Increase in unissued shares upon retirement	5,789,600
Common stock, authorized (in shares)	15,000,000	15,000,000		15,000,000
Treasury Stock
Treasury stock at cost			$ 58,555,000
Treasury Stock Retirement Resolutions 2020
Change to total stockholders' equity	$ 0

Income Taxes - Reconciliation (

Income Taxes - Reconciliation (Details)	12 Months Ended
	Mar. 28, 2021	Mar. 29, 2020	Mar. 31, 2019
Effective income tax rate reconciliation
Statutory federal rate (as a percent)	21.00%	21.00%	21.00%
State taxes, net of federal benefit (as a percent)	3.40%	1.80%	(1.30%)
Non-deductible expenses (as a percent)	(1.20%)	(0.70%)	2.20%
Change in uncertain tax positions (as a percent)			2.80%
Change in valuation allowance (as a percent)	(7.60%)	(2.90%)
Rate change for loss carrybacks	6.20%	12.50%
Other (as a percent)	(0.70%)	0.70%
Effective rate (as a percent)	21.10%	32.40%	24.70%

Income Taxes - Provision for Co

Income Taxes - Provision for Continuing Operations (Details) - USD ($)	3 Months Ended								12 Months Ended
	Mar. 28, 2021	Dec. 27, 2020	Sep. 27, 2020	Jun. 28, 2020	Mar. 29, 2020	Dec. 29, 2019	Sep. 29, 2019	Jun. 30, 2019	Mar. 28, 2021	Mar. 29, 2020	Mar. 31, 2019
Federal
Current									$ (4,263,700)	$ (4,008,000)	$ (3,120,400)
Deferred									(48,200)	(2,642,800)	509,400
State
Current									16,700	(411,000)	(321,500)
Deferred									450,700	(413,000)	18,700
Benefit from income taxes	$ (1,958,000)	$ (740,400)	$ (824,300)	$ (321,800)	$ (5,297,200)	$ (641,000)	$ (109,600)	$ (1,427,000)	$ (3,844,500)	$ (7,474,800)	$ (2,913,800)

Income Taxes - Deferred Taxes (

Income Taxes - Deferred Taxes (Details) - USD ($)	Mar. 28, 2021	Mar. 29, 2020
Deferred tax assets :
Deferred compensation	$ 163,600	$ 264,300
Accrued vacation	362,600	469,100
Deferred rent	2,638,100	3,258,600
Allowance for doubtful accounts	357,300	1,130,900
Inventory reserves	766,300	2,794,200
Sales tax reserves	104,500	122,900
Sales return assets	451,400	1,200,400
Net operating loss	518,500	275,400
Business interest limitation carryforward	383,800	259,300
Other assets	925,900	1,013,600
Total gross deferred tax assets	6,672,000	10,788,700
Valuation allowance	(2,866,800)	(2,047,300)
Total deferred tax assets	3,805,200	8,741,400
Deferred tax liabilities :
Depreciation and amortization	(214,600)	(419,200)
Sales return liabilities	(224,100)	(950,600)
Lease right of use	(2,589,600)	(3,232,900)
Prepaid expenses and other liabilities	(803,400)	(1,106,200)
Total deferred tax liabilities	(3,831,700)	(5,708,900)
Net Deferred Tax Assets		$ 3,032,500
Net Deferred Tax Liabilities	(26,500)
Net operating loss carryforwards, Subject to expiration	$ 72,966,720

Income Taxes - Unrecognized tax

Income Taxes - Unrecognized tax benefits (Details) - USD ($)	12 Months Ended
	Mar. 28, 2021	Mar. 29, 2020	Mar. 31, 2019	Apr. 01, 2018
Income Taxes
Unrecognized tax benefits	$ 0	$ 0		$ 112,700
Amount of interest and penalties expense (benefit) related to tax uncertainties recognized, net of federal expense/benefit	0	250,500
Cumulative amount of interest and penalties related to tax uncertainties	$ 0	$ 0	$ 0

Income Taxes - Changes in unrec

Income Taxes - Changes in unrecognized tax benefits (Details)	12 Months Ended
	Mar. 31, 2019USD ($)
Reconciliation of unrecognized tax benefit amounts
Beginning balance of unrecognized tax benefit	$ 112,700
Increases related to current period tax positions	3,500
Reductions as a result of a lapse in the applicable statute of limitations	$ (116,200)

Income Taxes - Tax Acts (Detail

Income Taxes - Tax Acts (Details) $ in Millions	12 Months Ended
	Mar. 31, 2019USD ($)
Income Taxes
Income tax benefit to re-measure deferred tax liabilities	$ 0.2

Retirement Plans - 401(k) (Deta

Retirement Plans - 401(k) (Details) - USD ($)	12 Months Ended
	Mar. 28, 2021	Mar. 29, 2020	Mar. 31, 2019
Retirement Plans
Defined contribution plan expense	$ 806,000	$ 937,500	$ 957,100
Common stock shares included in plan assets (in shares)	232,000

Retirement Plans - Supplemental

Retirement Plans - Supplemental Plan (Details) - USD ($)	Mar. 28, 2021	Mar. 29, 2020
Defined Benefit Plan
Plan type	us-gaap:SupplementalEmployeeRetirementPlanDefinedBenefitMember	us-gaap:SupplementalEmployeeRetirementPlanDefinedBenefitMember
Other long-term assets
Defined Benefit Plan
Cash surrender value of life insurance policy	$ 2,680,700	$ 2,523,500
Other long-term liabilities
Defined Benefit Plan
Net present value of benefit obligation	$ 809,400	$ 915,700

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Mar. 28, 2021	Dec. 27, 2020	Sep. 27, 2020	Jun. 28, 2020	Mar. 29, 2020	Dec. 29, 2019	Sep. 29, 2019	Jun. 30, 2019	Mar. 28, 2021	Mar. 29, 2020	Mar. 31, 2019
Earnings per share from continuing operations - Basic:
Net earnings									$ (14,373)	$ (15,601)	$ (8,882)
Weighted average common shares outstanding - Basic (in shares)	8,814,859	8,699,937	8,656,877	8,617,803	8,554,348	8,541,020	8,650,320	8,494,168	8,697,369	8,526,965	8,436,796
Earnings per common share from continuing operations - Basic (in dollars per share)									$ (1.65)	$ (1.83)	$ (1.05)
Diluted (loss) income per share
Net earnings									$ (14,373)	$ (15,601)	$ (8,882)
Weighted average common shares outstanding - Basic (in shares)	8,814,859	8,699,937	8,656,877	8,617,803	8,554,348	8,541,020	8,650,320	8,494,168	8,697,369	8,526,965	8,436,796
Weighted average common shares outstanding - Diluted (in shares)									8,697,000	8,527,000	8,437,000
Loss per common share from continuing operations - Diluted (in dollars per share)									$ (1.65)	$ (1.83)	$ (1.05)
Consolidated operations (in dollars per share)									$ (1.01)	$ (2.53)	$ 0.65
Anti-dilutive equity awards (in shares)									755,000	852,000	94,000
Options outstanding (in shares)	924,958								924,958
Stock Options
Diluted (loss) income per share
Anti-dilutive equity awards (in shares)									755,000	852,000	94,000
Options outstanding (in shares)	925,000				862,000				925,000	862,000	591,500
Performance Stock Units
Diluted (loss) income per share
Anti-dilutive equity awards (in shares)									0	0	0
RSUs
Diluted (loss) income per share
Anti-dilutive equity awards (in shares)									0	0	0

Stock-Based Compensation - Plan

Stock-Based Compensation - Plan (Details) - USD ($)	May 26, 2021	May 25, 2021	May 15, 2021	Apr. 29, 2021	Mar. 28, 2021	Mar. 29, 2020	Mar. 31, 2019	Jun. 02, 2021
Stock-based compensation
Income tax benefit from share-based compensation (in dollars)					$ 255,600	$ 386,100	$ 307,300
Number of shares available for grant (in shares)					528,709
Options Granted (in shares)					240,000	405,000
Performance Stock Units
Stock-based compensation
Cancelled (in shares)					33,113	52,532	25,437
Granted (in shares)						51,616	71,000
Selling, general and administrative expenses
Stock-based compensation
Stock-based compensation (in dollars)					$ 1,211,000	$ 1,174,600	$ 1,244,000
Subsequent Event
Stock-based compensation
Number of shares available for grant (in shares)								303,279
Options Granted (in shares)			187,500	187,500
Subsequent Event | Performance Stock Units
Stock-based compensation
Granted (in shares)	96,603
Subsequent Event | Restricted stock and RSUs
Stock-based compensation
Granted (in shares)				34,252
Subsequent Event | RSUs
Stock-based compensation
Granted (in shares)		24,761		12,000
Subsequent Event | Restricted stock awards
Stock-based compensation
Granted (in shares)				22,252

Stock-Based Compensation - Perf

Stock-Based Compensation - Performance Stock Units (Details) - Performance Stock Units - USD ($)	May 26, 2021	Mar. 26, 2023	Mar. 27, 2022	Mar. 28, 2021	Mar. 29, 2020	Mar. 31, 2019	Mar. 26, 2023
Stock-based compensation
Measurement period				1 year	1 year
PSU Activity
Unvested shares available for issue under outstanding PSUs, beginning of period (in shares)			13,552	68,355	98,306	67,000	13,552
Granted (in shares)					51,616	71,000
Vested (in shares)				(21,690)	(29,036)	(14,257)
Forfeited/cancelled (in shares)				(33,113)	(52,532)	(25,437)
Unvested shares available for issue under outstanding PSUs, end of period (in shares)				13,552	68,355	98,306
Unvested PSUs, Weighted-Average Fair Value at Grant Date (per unit)
Unvested shares available for issue under outstanding PSUs, beginning of period (in dollars per share)			$ 14.57	$ 15	$ 14.55	$ 12.65	$ 14.57
Granted (in dollars per share)					15.93	15.58
Vested (in dollars per share)				14.21	14.09	12.66
Forfeited/cancelled (in dollars per share)				15.69	9.82	13.46
Unvested shares available for issue under outstanding PSUs, end of period (in dollars per share)				$ 14.57	$ 15	$ 14.55
Additional stock based compensation information
Unrecognized compensation costs (in dollars)				$ 16,943
Total fair value of shares vested during period (in dollars)				$ 103,300	$ 780,400	$ 460,800
Forecast
PSU Activity
Vested (in shares)		(4,529)	(9,023)				(13,552)
Subsequent Event
PSU Activity
Granted (in shares)	96,603

Stock-Based Compensation - Rest

Stock-Based Compensation - Restricted Stock and RSUs (Details) $ in Millions	May 25, 2021shares	Apr. 29, 2021shares	May 10, 2019individualshares	Jun. 06, 2018shares	Jul. 24, 2021shares	Nov. 12, 2020shares	Mar. 28, 2021USD ($)shares
RSUs
Stock-based compensation
Number of shares for which vesting was accelerated							30,000
RSUs | Grant Fiscal Year 2019
Stock-based compensation
Granted (in shares)				21,000
Annual vesting percentage				25.00%
Unrecognized compensation costs, period for recognition							1 year
RSUs | Grant Fiscal Year 2019 | Maximum
Stock-based compensation
Unrecognized compensation costs (in dollars) | $							$ 0.1
RSUs | Grant Fiscal Year 2020
Stock-based compensation
Granted (in shares)			21,000
Number of individuals that received stock awards | individual			6
Vesting period			4 years
Unrecognized compensation costs, period for recognition							2 years
RSUs | Grant Fiscal Year 2020 | Maximum
Stock-based compensation
Unrecognized compensation costs (in dollars) | $							$ 0.1
RSUs | Grant Fiscal Year 2021
Stock-based compensation
Granted (in shares)						30,000
Annual vesting percentage						25.00%
Unrecognized compensation costs (in dollars) | $							$ 0.1
Unrecognized compensation costs, period for recognition							3 years
Restricted stock awards | Grant Fiscal Year 2021
Stock-based compensation
Granted (in shares)					72,202
Number of outstanding awards expected to vest							56,805
Subsequent Event | Restricted stock and RSUs
Stock-based compensation
Granted (in shares)		34,252
Subsequent Event | RSUs
Stock-based compensation
Granted (in shares)	24,761	12,000
Annual vesting percentage		25.00%
Subsequent Event | Restricted stock awards
Stock-based compensation
Granted (in shares)		22,252

Stock-Based Compensation - Stoc

Stock-Based Compensation - Stock Option Rollforward (Details) - $ / shares	12 Months Ended
	Mar. 28, 2021	Mar. 29, 2020
Stock Options:
Options forfeited due to employee departures (in shares)	177,042
Weighted-average remaining contractual term	2 years 9 months 18 days
Outstanding Options
Unvested options, beginning of period (in shares)	465,374	281,292
Options Granted (in shares)	240,000	405,000
Options Forfeited/Cancelled (in shares)	(127,625)	(81,376)
Options Vested (in shares)	(194,079)	(139,542)
Unvested options, end of period (in shares)	383,670	465,374
Weighted Average Fair Value at Grant Date (per unit)
Unvested options, beginning of period (in dollars per share)	$ 2.38	$ 2.39
Options Granted (in dollars per share)	2.05	2.53
Options Forfeited/Cancelled (in dollars per share)	3.13	3.23
Options Vested (in dollars per share)	3.28	2.32
Unvested options, end of period	$ 1.47	$ 2.38
Stock Options | Tranche one
Stock Options:
Vesting percentage	25.00%
Vesting period	1 year
Stock Options | Tranche two
Stock Options:
Monthly percentage of vesting of share based compensation	2.78%
Additional vesting period after the initial period	3 years

Stock-Based Compensation - St_2

Stock-Based Compensation - Stock Options By Grant Date (Details) - $ / shares	12 Months Ended
	Mar. 28, 2021	Mar. 29, 2020	Mar. 31, 2019	Apr. 01, 2018	Mar. 26, 2017	Mar. 27, 2016
Outstanding options
Options Granted (in shares)	240,000	405,000
Options Outstanding (in shares)	924,958
Options Exercisable (in shares)	541,288
Grant Fiscal Year 2021
Outstanding options
Options Granted (in shares)	240,000
Option Exercise Price (in dollars per share)	$ 4.70
Options Outstanding (in shares)	165,000
Grant Fiscal Year 2020
Outstanding options
Options Granted (in shares)		405,000
Option Exercise Price (in dollars per share)	$ 13.54
Options Outstanding (in shares)	341,000
Options Exercisable (in shares)	138,788
Grant Fiscal Year 2019
Outstanding options
Options Granted (in shares)			66,500
Option Exercise Price (in dollars per share)	$ 16.31
Options Outstanding (in shares)	35,000
Options Exercisable (in shares)	23,749
Grant Fiscal Year 2018
Outstanding options
Options Granted (in shares)				230,000
Option Exercise Price (in dollars per share)	$ 15.12
Options Outstanding (in shares)	80,000
Options Exercisable (in shares)	74,791
Grant Fiscal Year 2017
Outstanding options
Options Granted (in shares)					410,000
Option Exercise Price (in dollars per share)	$ 12.57
Options Outstanding (in shares)	263,958
Options Exercisable (in shares)	263,961
Grant Fiscal Year 2016
Outstanding options
Options Granted (in shares)						100,000
Option Exercise Price (in dollars per share)	$ 22.42
Options Outstanding (in shares)	40,000
Options Exercisable (in shares)	40,000

Stock-Based Compensation - St_3

Stock-Based Compensation - Stock Option Valuation Assumptions (Details) - $ / shares	12 Months Ended
	Mar. 28, 2021	Mar. 29, 2020	Mar. 31, 2019
Valuation assumptions
Resulting Black Scholes Value (in dollars per share)	$ 2.05	$ 2.53
Stock Options | Grant Fiscal Year 2021
Valuation assumptions
Expected Stock Price Volatility (as a percent)	46.82%
Risk-Free Interest Rate (as a percent)	1.17%
Expected Dividend Yield (as a percent)	0.00%
Average Expected Term	4 years
Resulting Black Scholes Value (in dollars per share)	$ 2.05
Stock Options | Grant Fiscal Year 2020
Valuation assumptions
Expected Stock Price Volatility (as a percent)		35.88%
Risk-Free Interest Rate (as a percent)		2.00%
Expected Dividend Yield (as a percent)		5.82%
Average Expected Term		4 years
Resulting Black Scholes Value (in dollars per share)		$ 2.53
Stock Options | Grant Fiscal Year 2019
Valuation assumptions
Expected Stock Price Volatility (as a percent)			35.59%
Risk-Free Interest Rate (as a percent)			3.11%
Expected Dividend Yield (as a percent)			4.99%
Average Expected Term			4 years
Resulting Black Scholes Value (in dollars per share)			$ 3.38

Stock-Based Compensation - St_4

Stock-Based Compensation - Stock Option Grants (Details) - USD ($)	May 15, 2021	Apr. 29, 2021	May 15, 2020	Feb. 08, 2021	Mar. 28, 2021	Mar. 29, 2020	Mar. 31, 2019
Stock-based compensation
Exercise of stock options (in dollars)						$ 681,100
Options Exercised (in shares)					0	48,125	0
Options Exercised, weighted average exercise price (in dollars per share)						$ 14.15
Options Granted (in shares)					240,000	405,000
Stock Options
Stock-based compensation
Unrecognized compensation costs (in dollars)					$ 800,000
Unrecognized compensation costs, period for recognition					3 years
Stock Options Vesting Based On Service
Stock-based compensation
Options Granted (in shares)				165,000
Stock Options Vesting Based On Performance
Stock-based compensation
Options Granted (in shares)			65,000
Subsequent Event
Stock-based compensation
Options Granted (in shares)	187,500	187,500
Tranche one | Stock Options
Stock-based compensation
Vesting percentage					25.00%
Vesting period					1 year
Tranche one | Stock Options Vesting Based On Service
Stock-based compensation
Vesting percentage				25.00%
Vesting period				1 year
Tranche one | Stock Options Vesting Based On Performance
Stock-based compensation
Vesting percentage			25.00%
Vesting period			1 year
Tranche one | Subsequent Event | Stock Options
Stock-based compensation
Vesting percentage		25.00%
Vesting period		1 year
Tranche two | Stock Options
Stock-based compensation
Monthly percentage of vesting of share based compensation					2.78%
Additional vesting period after the initial period					3 years
Tranche two | Stock Options Vesting Based On Service
Stock-based compensation
Monthly percentage of vesting of share based compensation				2.78%
Vesting period				3 years
Tranche two | Stock Options Vesting Based On Performance
Stock-based compensation
Monthly percentage of vesting of share based compensation			2.78%
Vesting period			3 years
Tranche two | Subsequent Event | Stock Options
Stock-based compensation
Monthly percentage of vesting of share based compensation		2.78%
Vesting period		3 years

Stock-Based Compensation - St_5

Stock-Based Compensation - Stock Purchase Plan (Details) - Team Member Stock Purchase Plan - USD ($)	12 Months Ended
	Mar. 28, 2021	Mar. 29, 2020	Mar. 31, 2019
Stock-based compensation
Number of shares authorized (in shares)	450,000
Purchase price of common stock (as a percent)	85.00%
Purchase period	6 months
Stock-based compensation (in dollars)	$ 61,500	$ 78,400	$ 82,600
Shares sold to employees (in shares)	40,493	34,829	19,183
Weighted-average market value (in dollars per share)	$ 4.92	$ 7.51	$ 14.54

Fair Value Disclosure (Details)

Fair Value Disclosure (Details) - Recurring - USD ($)	Mar. 28, 2021	Mar. 29, 2020
Fair Value
Assets, measured at fair value	$ 0	$ 0
Liabilities, measured at fair value	$ 0	$ 0

Supplemental Cash Flow Inform_2

Supplemental Cash Flow Information (Details) - USD ($)	12 Months Ended
	Mar. 28, 2021	Mar. 29, 2020	Mar. 31, 2019
Supplemental Cash Flow Information
Cash paid for income taxes, net of refunds	$ 21,000	$ 1,515,300	$ 1,835,400
Cash paid for interest	952,700	1,106,300	809,000
Interest capitalized	$ 450,200	$ 87,700	$ 0

Concentration of Risk Related_2

Concentration of Risk Related to Continuing Operations (Details) - Revenue	12 Months Ended
	Mar. 28, 2021customeritem	Mar. 29, 2020customeritem	Mar. 31, 2019customeritem
Customer Concentration Risk | Top ten customers
Concentration Risk
Number of customers	10	10	10
Concentration risk (as a percent)	34.00%	34.00%	31.00%
Customer Concentration Risk | One customer
Concentration Risk
Number of customers	1	1	1
Concentration risk (as a percent)	11.00%	15.00%	14.00%
Supplier Concentration Risk | Top ten suppliers
Concentration Risk
Number of suppliers | item	10	10	10
Concentration risk (as a percent)	53.00%	54.00%	50.00%
Supplier Concentration Risk | Largest Supplier
Concentration Risk
Concentration risk (as a percent)	29.00%	30.00%	24.00%

Discontinued Operations - Gener

Discontinued Operations - General (Details) - USD ($)	Dec. 02, 2020	Dec. 27, 2020	Mar. 28, 2021
Discontinued Operations
Gain on disposal			$ 3,020,800
Discontinued Operations, Disposed of by Sale | Ventev brand and other retail-related assets
Discontinued Operations
Cash consideration		$ 9,500,000
Maximum royalty payments receivable	$ 3,000,000
Royalty payment period	4 years
Customer returns resale period	2 years
Gain on disposal		$ 3,000,000	$ 3,020,800
Discontinued Operation, Name of Segment [Extensible List]			tess:RetailMarketSegmentMember

Discontinued Operations - Finan

Discontinued Operations - Financial Results of Retail Segment (Details) - USD ($)	3 Months Ended								12 Months Ended
	Mar. 28, 2021	Dec. 27, 2020	Sep. 27, 2020	Jun. 28, 2020	Mar. 29, 2020	Dec. 29, 2019	Sep. 29, 2019	Jun. 30, 2019	Mar. 28, 2021	Mar. 29, 2020	Mar. 31, 2019
Discontinued Operations Income Statement Disclosures
Goodwill impairment					$ 2,600,000					$ 2,600,000
Gain on disposal									$ 3,020,800
Income (loss) from discontinued operations	$ (2,075,700)	$ 4,787,500	$ 2,681,300	$ 237,300	(6,101,500)	$ (2,947,400)	$ 2,093,100	$ 988,300	5,630,400	(5,967,500)	$ 14,428,100
ASSETS
Current portion of assets held for sale	1,196,900				18,849,900				1,196,900	18,849,900
Discontinued Operations, Disposed of by Sale | Ventev brand and other retail-related assets
Discontinued Operations Income Statement Disclosures
Revenues									86,728,300
Cost of goods sold									74,238,800
Gross profit									12,489,500
Selling, general and administrative expenses									7,652,100
Income (loss) from operations									4,837,400
Gain on disposal		$ 3,000,000							3,020,800
Income (loss) before provision for (benefit from) income taxes									7,858,200
Provision for (benefit from) income taxes									2,227,800
Income (loss) from discontinued operations									5,630,400
ASSETS
Product inventory, net	1,196,900								1,196,900
Current portion of assets held for sale	$ 1,196,900								$ 1,196,900
Discontinued Operation, Name of Segment [Extensible List]									tess:RetailMarketSegmentMember
Cash provided by operating activities from discontinued operations									$ 13,200,000
Cash provided by investing activities from discontinued operations									$ 9,200,000
Discontinued Operations, Held-for-sale | Ventev brand and other retail-related assets
Discontinued Operations Income Statement Disclosures
Revenues										131,283,900	187,769,000
Cost of goods sold										119,102,800	150,815,000
Gross profit										12,181,100	36,954,000
Selling, general and administrative expenses										15,809,500	17,866,700
Goodwill impairment										2,569,100
Income (loss) from operations										(6,197,500)	19,087,300
Income (loss) before provision for (benefit from) income taxes										(6,197,500)	19,087,300
Provision for (benefit from) income taxes										(230,000)	4,659,200
Income (loss) from discontinued operations										(5,967,500)	$ 14,428,100
ASSETS
Product inventory, net					18,849,900					18,849,900
Current portion of assets held for sale					$ 18,849,900					$ 18,849,900
Discontinued Operation, Name of Segment [Extensible List]										tess:RetailMarketSegmentMember	tess:RetailMarketSegmentMember
Cash provided by operating activities from discontinued operations										$ 11,300,000	$ 17,300,000
Cash provided by investing activities from discontinued operations										$ 0	$ 0

Quarterly Results of Operatio_3

Quarterly Results of Operations (Unaudited) (Details) - USD ($)	3 Months Ended								12 Months Ended
	Mar. 28, 2021	Dec. 27, 2020	Sep. 27, 2020	Jun. 28, 2020	Mar. 29, 2020	Dec. 29, 2019	Sep. 29, 2019	Jun. 30, 2019	Mar. 28, 2021	Mar. 29, 2020	Mar. 31, 2019
Summarized quarterly financial data
Revenues	$ 88,733,100	$ 99,237,600	$ 88,892,400	$ 96,477,600	$ 105,839,700	$ 100,844,000	$ 103,651,000	$ 98,679,700	$ 373,340,700	$ 409,014,400	$ 419,044,800
Cost of goods sold	71,907,100	81,921,900	71,771,200	80,024,900	86,251,300	81,196,300	83,466,700	78,458,200	305,625,100	329,372,500	334,640,100
Gross profit	16,826,000	17,315,700	17,121,200	16,452,700	19,588,400	19,647,700	20,184,300	20,221,500	67,715,600	79,641,900	84,404,700
Selling, general and administrative expenses	19,580,000	23,606,800	20,787,800	21,532,500	23,547,600	21,994,800	22,029,900	24,432,900	85,507,100	92,005,200	95,347,000
Goodwill impairment					9,108,600					9,108,600
Restructuring charges								488,000		488,000
Operating expenses	19,580,000	23,606,800	20,787,800	21,532,500	32,656,200	21,994,800	22,029,900	24,920,900
Operating loss	(2,754,000)	(6,291,100)	(3,666,600)	(5,079,800)	(13,067,800)	(2,347,100)	(1,845,600)	(4,699,400)	(17,791,500)	(21,959,900)	(10,942,300)
Interest, net	58,500	151,200	105,900	110,700	204,600	367,900	335,100	208,700	426,300	1,116,300	853,800
Loss from continuing operations before (benefit from) provision for income taxes	(2,812,500)	(6,442,300)	(3,772,500)	(5,190,500)	(13,272,400)	(2,715,000)	(2,180,700)	(4,908,100)	(18,217,800)	(23,076,200)	(11,796,100)
(Benefit from) provision for income taxes	(1,958,000)	(740,400)	(824,300)	(321,800)	(5,297,200)	(641,000)	(109,600)	(1,427,000)	(3,844,500)	(7,474,800)	(2,913,800)
Net loss from continuing operations	(854,500)	(5,701,900)	(2,948,200)	(4,868,700)	(7,975,200)	(2,074,000)	(2,071,100)	(3,481,100)	(14,373,300)	(15,601,400)	(8,882,300)
(Loss) income from discontinued operations, net of taxes	(2,075,700)	4,787,500	2,681,300	237,300	(6,101,500)	(2,947,400)	2,093,100	988,300	5,630,400	(5,967,500)	14,428,100
Net loss	$ (2,930,200)	$ (914,400)	$ (266,900)	$ (4,631,400)	$ (14,076,700)	$ (5,021,400)	$ 22,000	$ (2,492,800)	$ (8,742,900)	$ (21,568,900)	$ 5,545,800
Basic and diluted (loss) income per share
Continuing operations (in dollars per share)	$ (0.10)	$ (0.66)	$ (0.34)	$ (0.56)	$ (0.93)	$ (0.24)	$ (0.24)	$ (0.41)
Discontinued operations (in dollars per share)	(0.24)	0.55	0.31	0.03	(0.71)	(0.35)	0.24	0.12
Consolidated operations (in dollars per share)	$ (0.33)	$ (0.11)	$ (0.03)	$ (0.54)	$ (1.65)	$ (0.59)	$ 0	$ (0.29)
Basic weighted-average common shares outstanding (in shares)	8,814,859	8,699,937	8,656,877	8,617,803	8,554,348	8,541,020	8,650,320	8,494,168	8,697,369	8,526,965	8,436,796
Basic and diluted weighted-average common shares outstanding (in shares)	8,814,859	8,699,937	8,656,877	8,617,803	8,554,348	8,541,020	8,650,320	8,494,168	8,697,369	8,526,965	8,436,796
Cash dividends declared per common share (in dollars per share)					$ 0.02	$ 0.20	$ 0.20	$ 0.20		$ 0.62	$ 0.80

Schedule II - Valuation and Q_2

Schedule II - Valuation and Qualifying Accounts (Details) - USD ($)	12 Months Ended
	Mar. 28, 2021	Mar. 29, 2020	Mar. 31, 2019
Allowance for doubtful accounts:
Change in valuation allowances and reserves
Balance, beginning of period	$ 3,288,800	$ 2,137,900	$ 1,094,900
Provision/expense	(971,600)	2,100,400	1,721,200
Write-offs and other adjustments	(733,000)	(949,500)	(678,200)
Balance, end of period	1,584,200	3,288,800	2,137,900
Inventory Reserve:
Change in valuation allowances and reserves
Balance, beginning of period	9,666,100	5,870,600	5,739,700
Provision/expense	146,600	11,801,500	4,863,100
Write-offs and other adjustments	(6,453,600)	(8,006,000)	(4,732,200)
Balance, end of period	3,359,100	9,666,100	5,870,600
Allowance for deferred tax asset:
Change in valuation allowances and reserves
Balance, beginning of period	2,047,300	141,600
Provision/expense	819,500	1,905,700	141,600
Balance, end of period	$ 2,866,800	$ 2,047,300	$ 141,600