Tessco (TESS) 10-K 2 Jun 15 2015 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
	Mar. 29, 2015	26-May-15	Sep. 28, 2014
Document and Entity Information [Abstract]
Entity Registrant Name	TESSCO TECHNOLOGIES INC
Entity Central Index Key	927355
Current Fiscal Year End Date	-26
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Public Float			$182,901,110
Entity Common Stock, Shares Outstanding		8,266,863
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	FY
Document Type	10-K
Amendment Flag	FALSE
Document Period End Date	29-Mar-15

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Mar. 29, 2015	Mar. 30, 2014
Current assets:
Cash and cash equivalents	$7,524,000	$11,467,900
Trade accounts receivable, net of allowance for doubtful accounts of $661,900 and $1,080,300, respectively	59,572,100	67,495,700
Product inventory	72,363,600	61,955,700
Deferred tax assets, net	3,856,000	6,913,000
Prepaid expenses and other current assets	10,868,900	2,336,600
Total current assets	154,184,600	150,168,900
Property and equipment, net	21,111,800	22,765,400
Goodwill, net	11,684,700	11,684,700
Other long-term assets	2,619,600	2,341,300
Total assets	189,600,700	186,960,300
Current liabilities:
Trade accounts payable	51,804,200	50,756,900
Payroll, benefits and taxes	5,531,900	7,670,100
Income and sales tax liabilities	1,832,400	2,477,700
Accrued expenses and other current liabilities	8,688,500	923,600
Revolving line of credit	0	0
Current portion of long-term debt	250,700	250,200
Total current liabilities	68,107,700	62,078,500
Deferred tax liabilities, net	3,360,100	4,260,700
Long-term debt, net of current portion	1,957,500	2,208,200
Other long-term liabilities	3,033,300	3,584,800
Total liabilities	76,458,600	72,132,200
Commitment and Contingencies
Shareholders' equity:
Preferred stock, $0.01 par value, 500,000 shares authorized and no shares issued and outstanding	0	0
Common stock, $0.01 par value, 15,000,000 shares authorized, 13,817,239 shares issued and 8,159,592 shares outstanding as of March 29, 2015 , and 13,627,098 shares issued and 8,180,484 shares outstanding as of March 30, 2014	96,100	94,200
Additional paid-in capital	56,517,600	53,987,700
Treasury stock, at cost, 5,657,647 shares outstanding as of March 29, 2015 and 5,446,614 shares outstanding as of March 30, 2014	-56,307,900	-50,084,600
Retained earnings	112,836,300	110,830,800
Total shareholders' equity	113,142,100	114,828,100
Total liabilities and shareholders' equity	$189,600,700	$186,960,300

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 29, 2015	Mar. 30, 2014
Current assets:
Trade accounts receivable, allowance for doubtful accounts	$661,900	$1,080,300
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)	13,817,239	13,627,098
Common stock, outstanding (in shares)	8,159,592	8,180,484
Treasury stock (in shares)	5,657,647	5,446,614

Consolidated_Statements_of_Inc

Consolidated Statements of Income (USD $)	12 Months Ended
	Mar. 29, 2015	Mar. 30, 2014	Mar. 31, 2013
Consolidated Statements of Income [Abstract]
Revenues	$549,619,000	$560,086,600	$752,565,000
Cost of goods sold	418,730,500	421,928,700	605,525,800
Gross profit	130,888,500	138,157,900	147,039,200
Selling, general and administrative expenses	115,936,700	111,668,000	117,820,600
Restructuring charge	573,400	0	0
Operating Expenses	116,510,100	111,668,000	117,820,600
Income from operations	14,378,400	26,489,900	29,218,600
Interest, net	167,300	177,700	224,200
Income before provision for income taxes	14,211,100	26,312,200	28,994,400
Provision for income taxes	5,576,800	10,063,100	11,200,500
Net income	$8,634,300	$16,249,100	$17,793,900
Basic earnings per share (in dollars per share)	$1.05	$1.98	$2.22
Diluted earnings per share (in dollars per share)	$1.04	$1.94	$2.15
Cash dividends declared per common share (in dollars per share)	$0.80	$0.74	$1.47

Consolidated_Statements_of_Cha

Consolidated Statements of Changes in Shareholders' Equity (USD $)	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Total
Balance at Apr. 01, 2012	$88,000	$45,135,900	($46,276,400)	$94,704,400	$93,651,900
Balance (in shares) at Apr. 01, 2012	7,744,528
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Proceeds from issuance of stock	300	486,500			486,800
Proceeds from issuance of stock (in shares)	24,908
Treasury stock purchases			-2,161,900		-2,161,900
Treasury stock purchases (in shares)	-101,854
Non-cash stock compensation expense	3,200	2,533,600			2,536,800
Non-cash stock compensation expense (in shares)	320,318
Excess tax benefit from stock-based compensation		2,325,600			2,325,600
Cash dividends paid				-11,830,500	-11,830,500
Net income				17,793,900	17,793,900
Balance at Mar. 31, 2013	91,500	50,481,600	-48,438,300	100,667,800	102,802,600
Balance (in shares) at Mar. 31, 2013	7,987,900
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Proceeds from issuance of stock	200	602,800			603,000
Proceeds from issuance of stock (in shares)	23,542
Treasury stock purchases			-1,646,300		-1,646,300
Treasury stock purchases (in shares)	-72,116
Non-cash stock compensation expense	2,500	2,084,600			2,087,100
Non-cash stock compensation expense (in shares)	241,158
Excess tax benefit from stock-based compensation		818,700			818,700
Cash dividends paid				-6,086,100	-6,086,100
Net income				16,249,100	16,249,100
Balance at Mar. 30, 2014	94,200	53,987,700	-50,084,600	110,830,800	114,828,100
Balance (in shares) at Mar. 30, 2014	8,180,484				8,180,484
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Proceeds from issuance of stock	200	540,000			540,200
Proceeds from issuance of stock (in shares)	19,425
Treasury stock purchases			-6,223,300		-6,223,300
Treasury stock purchases (in shares)	-211,033
Non-cash stock compensation expense	1,700	1,159,600			1,161,300
Non-cash stock compensation expense (in shares)	170,716
Excess tax benefit from stock-based compensation		830,300			830,300
Cash dividends paid				-6,628,800	-6,628,800
Net income				8,634,300	8,634,300
Balance at Mar. 29, 2015	$96,100	$56,517,600	($56,307,900)	$112,836,300	$113,142,100
Balance (in shares) at Mar. 29, 2015	8,159,592				8,159,592

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	12 Months Ended
	Mar. 29, 2015	Mar. 30, 2014	Mar. 31, 2013
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$8,634,300	$16,249,100	$17,793,900
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	4,583,600	4,865,000	4,979,400
Gain on sale of property and equipment	-3,000	-29,500	-3,000
Non-cash stock compensation expense	1,161,300	2,087,100	2,536,800
Deferred income taxes and other	1,347,200	-1,042,400	-843,700
Change in trade accounts receivable	7,923,600	14,681,900	6,570,600
Change in product inventory	-10,407,900	-1,042,100	-7,553,300
Change in prepaid expenses and other current assets	-8,532,300	1,145,700	-1,174,100
Change in trade accounts payable	1,047,300	-14,452,400	-13,135,400
Change in payroll, benefits and taxes	-2,138,200	-4,008,400	-5,533,100
Change in income and sales tax liabilities	-645,300	-53,000	-606,300
Change in accrued expenses and other current liabilities	8,109,200	264,400	320,600
Net cash provided by operating activities	11,079,800	18,665,400	3,352,400
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisition of property and equipment	-2,950,600	-4,745,000	-5,357,000
Proceeds from sale of property and equipment	3,000	29,500	3,000
Net cash used in investing activities	-2,947,600	-4,715,500	-5,354,000
CASH FLOWS FROM FINANCING ACTIVITIES:
Payments on long-term debt	-250,200	-249,600	-249,200
Proceeds from issuance of stock	195,900	213,300	174,000
Cash dividends paid	-6,628,800	-6,086,100	-11,830,500
Purchases of treasury stock and repurchases of stock from employees and directors for minimum tax withholdings	-6,223,300	-1,646,300	-2,161,900
Excess tax benefit from stock-based compensation	830,300	818,700	2,325,600
Net cash used in financing activities	-12,076,100	-6,950,000	-11,742,000
Net (decrease) increase in cash and cash equivalents	-3,943,900	6,999,900	-13,743,600
CASH AND CASH EQUIVALENTS, beginning of period	11,467,900	4,468,000	18,211,600
CASH AND CASH EQUIVALENTS, end of period	$7,524,000	$11,467,900	$4,468,000

Organization

Organization	12 Months Ended
	Mar. 29, 2015
Organization [Abstract]
Organization	Note 1. Organization
	TESSCO Technologies Incorporated, a Delaware corporation (TESSCO, we, 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 98% 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_Account

Summary of Significant Accounting Policies	12 Months Ended
	Mar. 29, 2015
Summary of Significant Accounting Policies [Abstract]
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 29, 2015, March 30, 2014 and March 31, 2013 each contain 52 weeks.
	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.
	Product Inventory
	Product inventory, consisting primarily of finished goods, is stated at the lower of cost or market, 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 market value, based upon specifically known inventory-related risks (such as technological obsolescence and the nature of vendor terms surrounding price protection and product returns), and assumptions about future demand. At March 29, 2015 and March 30, 2014,  the Company had a reserve for excess and/or obsolete inventory of $5,780,600 and $4,086,100, respectively.
	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 and software	1‑5 years
	Configuration, Fulfillment and Delivery technology system	7 years
	Furniture, telephone system, equipment and tooling	3‑10 years
	Building, building improvements and leasehold improvements	2‑40 years
	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 software project is either for the development of 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.
	Leasehold improvements are amortized over the shorter of their useful lives or the remaining lease term.
	Impairment of Long-Lived Assets
	Long-lived assets, including amortizable intangible 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 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 in fiscal years 2015, 2014 or 2013.
	Assets to be disposed of are reported at the lower of carrying value or fair values, less estimated costs of disposal.
	Goodwill and Other Intangible Assets
	Goodwill represents the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Goodwill amounts and indefinite lived intangible assets are not amortized, but rather are tested for impairment at least annually or whenever an impairment indicator is identified. The Company performs its annual impairment test on the first day of its fourth quarter. Intangible assets that are not considered to have an indefinite useful life are amortized over their useful life of 4 to 6 years using the straight-line method. Intangible assets other than goodwill are recorded within other long-term assets in the Company’s Consolidated Balance Sheets. The goodwill 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 performs an additional two-step approach. Under the first step, the Company determines the fair value of each reporting unit to which goodwill has been assigned. The Company then compares the fair value of each reporting unit to its carrying value, including goodwill. The Company estimates the fair value of each reporting unit using various valuation techniques, with the primary technique being a discounted cash flow or income approach, under which the Company estimates the present value of the reporting unit’s future cash flows. Key assumptions used to determine the present value of a reporting unit’s future cash flows include (a) a cash flow period; (b) a terminal value based on a growth rate; and (c) a discount rate, which is based on the Company’s weighted average cost of capital adjusted for risks associated with our operations. If the fair value exceeds the carrying value, no impairment loss is recognized. If the carrying value exceeds the fair value, the goodwill of the reporting unit is considered potentially impaired and the second step is completed in order to measure the impairment loss. Under the second step, the Company calculates the implied fair value of goodwill by deducting the fair value of all tangible and intangible net assets, including any unrecognized intangible assets, of the reporting unit from the fair value of the reporting unit as determined in the first step. The Company then compares the implied fair value of goodwill to the carrying value of goodwill. If the implied fair value of goodwill is less than the carrying value of goodwill, the Company recognizes an impairment loss equal to the difference.
	The indefinite lived intangible asset impairment test requires the determination of 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. Fair value is determined using estimates of discounted cash flows. These estimates of discounted cash flows will likely change over time as impairment tests are performed. Estimates of fair value are also adversely affected by increases in interest rates and the applicable discount rate.
	Based on the Company’s qualitative and/or quantitative impairment testing performed, the Company did not recognize an impairment loss on goodwill or other indefinite lived intangible assets in fiscal years 2015, 2014 or 2013.
	The methods of assessing fair value for 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.
	Revenue Recognition
	The Company records revenues when 1) persuasive evidence of an arrangement exists, 2) delivery has occurred or services have been rendered, 3) price to the buyer is fixed or determinable, and 4) collectability is reasonably assured. The Company’s revenue recognition policy includes evidence of arrangements for significant revenue transactions through either receipt of a customer purchase order or a web-based order. The Company records revenues when risk of loss has passed to the customer. In most cases, shipments are made using FOB 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. The Company sells under normal commercial terms and, therefore, only records sales on transactions where collectability is reasonably assured. The Company recognizes revenues net of sales tax.
	Because the Company’s sales transactions meet the conditions set forth in the Financial Accounting Standards Board’s (“FASB”) Accounting Standards Codification (“ASC”) No. 605 and/or 606, it recognizes revenues from sales transactions containing sales returns provisions at the time of the sale. These conditions require that 1) the price be substantially fixed or determinable at the date of sale, 2) the buyer is obligated to pay, and the payment is not contingent on their resale of the product, 3) the buyer’s obligation to the Company does not change in the event of theft or physical destruction or damage of the product, 4) the buyer has economic substance apart from the Company, 5) the Company does not have significant obligations for future performance to directly bring about resale of the product by the buyer, and 6) the amount of future returns can be reasonably estimated. Because the Company’s normal terms and conditions of sale are consistent with conditions 1-5 above, and the Company is able to perform condition 6, it makes a reasonable estimate of product returns in sales transactions and accrues a sales return reserve based on this estimate.
	Certain companies have turned to TESSCO to implement supply chain solutions, including purchasing inventory, assisting in demand forecasting, configuring, packaging, kitting and delivering products and managing customer and vendor relations, from order taking through cash collections. In performing these solutions, the Company assumes varying levels of involvement in the transactions and varying levels of credit and inventory risk. As the Company’s solutions offerings continually evolve to meet the needs of its 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 the ASC No. 605-45, the Company looks at the following indicators: whether it is the primary obligor in the transaction; whether it has general inventory risk; whether it has latitude in establishing price; the extent to which it changes the product or performs part of the service; whether it has discretion in supplier selection; whether it is involved in the determination of product and service specifications; whether it has physical inventory risk; whether it has credit risk; and whether the amount it earns is fixed. 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 2015). If applying this revenue recognition guidance resulted in recording revenues on a different basis from which the Company has previously concluded, or if the factors above change significantly, revenues could increase or decrease; however, gross profit and net income would remain constant.
	Service revenue associated with training and other services is recognized when the training or work is complete and the four criteria discussed above have been met. Service revenues have represented less than 1% of total revenues for fiscal years 2015, 2014 and 2013.
	Other than sales relating to the Company’s private brands, we offer no product warranties in excess of original equipment manufacturers’ warranties. The Company’s warranty expense is estimated and accrued at the time of sale. Warranty expense was immaterial for fiscal years 2015, 2014 and 2013.
	Vendor Programs
	Funds received from vendors for price protection, product rebates and marketing/promotion are recorded in accordance with ASC 605.
	Classification of Expenses
	Cost of goods sold includes cost of products and freight from vendors to our distribution centers. Product management, distribution, purchasing, receiving/inspection, warehousing, freight from our distribution centers to our customers’ sites, and corporate overhead costs are included in selling, general and administrative expenses. Certain selling, general and administrative expenses related to direct and indirect labor and certain freight-in expenses are included in inventory. As of March 29, 2015 and March 30, 2014, the amount of selling, general and administrative expenses and freight in expenses included in inventory was $3,008,200 and $2,261,500, respectively.
	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 Income and totaled $13,700,000, $13,364,600, and $13,674,300 for the fiscal years ended March 29, 2015, March 30, 2014, and March 31, 2013, respectively.
	Stock Compensation Awards Granted to Team Members
	The Company records stock compensation expense for awards in accordance with ASC No. 718, which requires the Company to include in its calculation of periodic stock compensation expense an estimate of future 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, the Company recognizes a provision for tax uncertainties in its financial statements. See Note 12 for further discussion of the standard and its impact on the Company’s consolidated financial statements.
	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 goodwill and other long-lived assets. Actual results could significantly differ from those estimates.
	Impact of Recently Issued Accounting Standards
	In May 2014, the FASB issued Accounting Standards Update No. 2014-09, Revenue from Contracts with Customers. This guidance will supersede Topic 605, Revenue Recognition, in addition to other industry-specific guidance, once effective. The new standard requires a company to recognize revenue in a manner that depicts the transfer of promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods and services.  The accounting standard is effective for annual periods beginning after December 15, 2016. On April 29, 2015 the FASB issued for public comment a proposal to defer the effective date of the standard by one year. We are currently in the process of assessing what impact this new standard may have on our ongoing financial reporting and determining what transition method will be used.
	In June 2014, the FASB issue Accounting Standards Update No. 2014-12, Compensation – Stock Compensation. This pronouncement provides guidance on accounting for share-based awards where the performance target could be achieved after an employee completes the requisite service period. We currently do not have any share-based arrangements of this type; therefore, this guidance is not expected to have an impact on our results of operations or financial condition. See Note 15 for the details of our stock based compensation.

Property_and_Equipment

Property and Equipment	12 Months Ended
	Mar. 29, 2015
Property and Equipment [Abstract]
Property and Equipment	Note 3. Property and Equipment
	All of the Company’s property and equipment is located in the United States. Property and equipment, and is summarized as follows:
		2015			2014
	Land	$	4,740,800		$	4,740,800
	Building, building improvements and leasehold improvements		21,375,500			21,202,400
	Information technology equipment and computer software		25,751,500			24,625,800
	Furniture, telephone system, equipment and tooling		7,809,400			7,734,000
			59,677,200			58,303,000
	Less accumulated depreciation and amortization		(38,565,400	)		(35,537,600	)
	Property and equipment, net	$	21,111,800		$	22,765,400
	Depreciation and amortization of property and equipment was $4,583,600, $4,852,800, and $4,926,400 for fiscal years 2015, 2014 and 2013, respectively.
	Capitalized internally developed computer software, net of accumulated amortization, as of March 29, 2015 and March 30, 2014 was $844,000 and $1,012,400, respectively. Amortization expense of capitalized internally developed computer software was $797,800, $980,300, and $1,322,400 for fiscal years 2015, 2014, and 2013.

Goodwill_and_Other_Intangible_

Goodwill and Other Intangible Assets	12 Months Ended
	Mar. 29, 2015
Goodwill and Other Intangible Assets [Abstract]
Goodwill and Other Intangible Assets	Note 4. Goodwill and Other Intangible Assets
	Other intangible assets, which are included in other long-term assets on the accompanying Consolidated Balance Sheets as of March 29, 2015 and March 30, 2014 consists of indefinite lived intangibles assets in the amount of $850,000. Amortization expense relating to other intangible assets was $12,300 for fiscal year 2014 and $53,000 for fiscal year 2013. At March 29, 2015 and March 30, 2014, amortizable intangible assets were fully amortized. There were no changes in the carrying amount of goodwill for the fiscal years ended March 29, 2015 and March 30, 2014.

Accrued_expenses_and_other_cur

Accrued expenses and other current liabilities	12 Months Ended
	Mar. 29, 2015
Accrued expenses and other current liabilities [Abstract]
Accrued expenses and other current liabilities	Note 5. Accrued expenses and other current liabilities
	Accrued expenses and other current liabilities consisted of the following:
		29-Mar-15		30-Mar-14
	Deferred Revenue	$	6,959,300	$	--
	Other Accrued Expenses		1,729,200		923,600
	Total Accrued Expenses	$	8,688,500	$	923,600

Borrowings_Under_Revolving_Cre

Borrowings Under Revolving Credit Facility	12 Months Ended
	Mar. 29, 2015
Borrowings Under Revolving Credit Facility [Abstract]
Borrowings Under Revolving Credit Facility	Note 6. Borrowings Under Revolving Credit Facility
	On May 31, 2007, pursuant to a Credit Agreement, the Company established a revolving credit facility with both Wells Fargo Bank, National Association and SunTrust Bank. The facility is unsecured and provides for monthly payments of interest accruing at a rate of LIBOR plus an applicable margin. The terms of the revolving credit facility require the Company to meet certain financial covenants and ratios and contain other limitations, including certain restrictions on dividend payments. Borrowing availability under the facility is also subject to a borrowing base, based on levels of trade accounts receivable and inventory. This credit facility has been amended several times, most recently on October 16, 2013 (the Ninth Modification Agreement).  Currently the credit facility has a maximum borrowing limit of $35.0 million and has a term expiring in October 2016.  The amount of dividend payments allowed to be made by the Company under the Credit Facility is $8.0 million in any 12 month period, not including the onetime special dividend of $0.75 per share of common stock on December 27, 2012, to shareholders of record on December 13, 2012.  The dollar amount of stock repurchases permitted under the term of the credit facility is $30.0 million. As of March 29, 2015, the Company had the ability to purchase approximately $11.7 million in additional shares of common stock without violating this covenant Numerous financial covenants have been amended from the original credit facility.  The financial covenants included in the Credit Agreement for the unsecured revolving credit facility are also applicable to the Company's existing Term Loan with the same lenders. Accordingly, each amendment also has the effect of amending the financial covenants applicable to the Term Loan.
	The facility provides for monthly payments of interest accruing at a rate of LIBOR plus an applicable margin ranging from 1.50% to 2.50%.The weighted average interest rate on borrowings under the Company’s revolving credit facilities was 1.65%, 2.35%, and 2.68% for fiscal years 2015, 2014, and 2013, respectively. Interest expense on this revolving credit facility for fiscal years 2015, 2014, and 2013 totaled $78,200, $53,400, and $77,400, respectively. Average borrowings under this revolving credit facility totaled $4,672,300, $2,243,900, and $2,858,500 and maximum borrowings totaled $17,331,900, $13,467,000, and $18,989,600, for fiscal years 2015, 2014, and 2013, respectively.
	As of March 29, 2015 and March 30, 2014, the Company had no outstanding balance on its revolving credit facility. Therefore, we had $35.0 million available on our revolving line of credit facility as of both March 29, 2015 and March 30, 2014.
	The Company was in compliance with the terms and financial covenants applicable to each of the revolving credit facility and term loan facility at the end of fiscal years 2015, 2014, and 2013.

LongTerm_Debt

Long-Term Debt	12 Months Ended
	Mar. 29, 2015
Long-Term Debt [Abstract]
Long-Term Debt	Note 7. Long-Term Debt
	On June 30, 2004, the Company refinanced its previously existing term loan with a bank. The original principal amount of the loan was $4.5 million, payable in monthly installments of principal and interest with the balance due at the initial maturity date, June 30, 2011. On May 20, 2011, the Company entered into an agreement with Wells Fargo Bank, National Association, and SunTrust Bank, effective July 1, 2011, to extend the maturity date of the existing term loan to July 1, 2016. The interest rate on this term loan is LIBOR plus 2.00%. The note is secured by a first position deed of trust encumbering Company-owned real property in Hunt Valley, Maryland. The loan is generally subject to the same financial covenants as the Company’s revolving credit facility (see Note 6), which requires the Company to meet certain financial covenants and ratios and contains other limitations, including certain restrictions on dividend payments. The balance of this note at March 29, 2015 and March 30, 2014 was $2,100,000 and $2,325,000, respectively. The weighted average interest rate on borrowings under this note was 2.19%, 2.18%, and 2.21% for fiscal years 2015, 2014, and 2013, respectively. Interest expense under this note was $48,400, $54,500, and $55,600 for fiscal years 2015, 2014, and 2013, respectively.
	On March 31, 2009, the Company entered into a term loan with the Baltimore County Economic Development Revolving Loan Fund for an aggregate principal amount of $250,000. At March 29, 2015 and March 30, 2014, the principal balance of this term loan was $108,200 and $133,400, respectively. The term loan is payable in equal monthly installments of principal and interest of $2,300, with the balance due at maturity on April 1, 2019. The term loan bears interest at 2.00% per annum. Interest expense under this note was $2,400, $2,900, and $3,400 for fiscal years 2015, 2014, and 2013, respectively. The term loan is secured by a subordinate position on Company-owned real property located in Hunt Valley, Maryland.
	As of March 29, 2015, scheduled annual maturities of long-term debt are as follows:
	Fiscal year:
	2016	$	250,700
	2017		1,901,200
	2018		26,700
	2019		27,300
	2020		2,300
	Thereafter		--
		$	2,208,200

Commitments_and_Contingencies

Commitments and Contingencies	12 Months Ended
	Mar. 29, 2015
Commitments and Contingencies [Abstract]
Commitments and Contingencies	Note 8. Commitments and Contingencies
	The Company is committed to making rental payments under non-cancelable operating leases covering various facilities and equipment. Rent expense for fiscal years 2015, 2014 and 2013 totaled $2,970,300, $3,004,300, and $2,907,900, 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, 2017. Monthly rent payments now range from $162,600 to $177,700 for this office space through the remaining lease term.
	The Company also leases approximately office and warehouse space in Hunt Valley, Maryland, adjacent to the Company’s Global Logistics Center, expiring on July 31, 2017; however, the Company has an ongoing annual option to terminate the lease. The monthly rental fee ranges from $33,000 to $35,700 through the 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, 2018.  Monthly rent payments range from $15,300 to $16,900.
	The Company’s minimum future obligations as of March 29, 2015 under existing operating leases are as follows:
	Fiscal year:
	2016		$	3,032,100
	2017			2,983,100
	2018			2,020,500
	2019			143,600
	2020			11,100
	Thereafter			--
			$	8,190,400
	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. No federal, state and local tax returns are currently under examination, except for the following state sales tax audits:
		·	Maryland for the tax period of January 2011 through December 2014
		·	Florida for the tax period of November 2011 through October 2014
		·	New York for the tax period of June 2012 through February 2015
	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. 29, 2015
Operating Segments [Abstract]
Operating Segments	Note 9. Operating Segments
	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, contractors and program managers that are generally responsible for building and maintaining the infrastructure system and provide airtime service to individual subscribers; (2) government system operators including federal agencies and state and local governments that run wireless networks for their own use; (3) private system operators including commercial entities such as major utilities and transportation companies that run wireless networks for their own use; (4) commercial dealers and resellers that sell, install and/or service cellular telephone, wireless networking, broadband and two-way radio communications equipment primarily for the enterprise market; (5) retailers, independent dealer agents and carriers; and (6) the Company's Major 3PL relationship with AT&T that was fully transitioned at the end of fiscal 2013. Beginning in the third quarter of fiscal 2015, we began reporting private system operators and government system operators as two separate market units.  All prior period information below reflects this change.
	The Company evaluates revenue, gross profit and net profit contribution, and income before provision for income taxes in the aggregate. Net profit contribution is defined as gross profit less any expenses that can be directly attributed.  This includes sales, product management, purchasing, credit and collections and distribution team expenses, plus freight out and internal and external marketing costs.  Corporate support expenses includes administrative costs – finance, human resources, information technology, operating facility occupancy expenses, depreciation, amortization and interest, plus the company-wide pay on performance bonus expense.
	Certain cost of sales and other applicable expenses have been allocated to each market based on a percentage of revenues and/or gross profit, where appropriate.
	Market activity for the fiscal years ended 2015, 2014 and 2013 is as follows (in thousands):
			29-Mar-15		30-Mar-14		31-Mar-13
	Revenues
	Public Carriers, Contractors & Program Managers		$	127,426	$	149,196	$	111,146
	Government System Operators			31,495		33,757		35,857
	Private System Operators			86,725		81,559		85,456
	Commercial Dealers & Resellers			134,195		140,552		138,737
	Retailer, Independent Dealer Agents & Carriers			169,778		155,023		167,895
	Revenue, excluding Major 3PL relationship			549,619		560,087		539,091
	Major 3PL relationship			--		--		213,474
	Total revenues			549,619		560,087		752,565
	Gross Profit
	Public Carriers, Contractors & Program Managers			24,081		31,013		24,183
	Government System Operators			8,283		8,497		9,231
	Private System Operators			22,926		23,110		24,365
	Commercial Dealers & Resellers			37,977		39,396		38,345
	Retailer, Independent Dealer Agents & Carriers			37,622		36,142		35,903
	Gross profit, excluding Major 3PL relationship			130,889		138,158		132,027
	Major 3PL relationship			--		--		15,012
	Total gross profit			130,889		138,158		147,039
	Selling, general, administrative, and interest expenses			116,104		111,846		118,045
	Restructuring charge			573		--		--
	Operating and interest expenses			116,677		111,846		118,045
	Income before provision for income taxes		$	14,211	$	26,312	$	28,994
	The Company also reviews revenue and gross profit by its four product categories:
		·	Base station infrastructure products are used to build, repair and upgrade wireless telecommunications. Products include base station antennas, cable and transmission lines, small towers, lightning protection devices, connectors, power systems, miscellaneous hardware, and mobile antennas. Our base station infrastructure service offering includes connector installation, custom jumper assembly, site kitting and logistics integration.
		·	Network systems products are used to build and upgrade computing and Internet networks.  Products include fixed and mobile broadband equipment, wireless networking, filtering systems, distributed antenna systems, two-way radios and security and surveillance products.  This product category also includes training classes, technical support and engineering design services.
		·	Installation, test and maintenance products are used to install, tune, and maintain wireless communications equipment. Products include sophisticated analysis equipment and various frequency-, voltage- and power-measuring devices, as well as an assortment of tools, hardware, GPS, safety and replacement and component parts and supplies required by service technicians.
		·	Mobile devices and accessory products include cellular phone and data device accessories such as replacement batteries, cases, speakers, mobile amplifiers, power supplies, headsets, mounts, car antennas, music accessories and data and memory cards. Retail merchandising displays, promotional programs, customized order fulfillment services and affinity-marketing programs, including private label Internet sites, complement our mobile devices and accessory product offering.
	Supplemental revenue and gross profit information by product category for the fiscal years 2015, 2014 and 2013 are as follows (in thousands):
			29-Mar-15		30-Mar-14		31-Mar-13
	Revenues
	Base station infrastructure		$	224,135	$	252,983	$	227,510
	Network systems			96,399		89,411		78,989
	Installation, test and maintenance			41,790		45,343		47,766
	Mobile device accessories			187,295		172,350		398,300
	Total revenues		$	549,619	$	560,087	$	752,565
	Gross Profit
	Base station infrastructure			60,960		69,451		65,472
	Network systems			16,064		16,040		14,887
	Installation, test and maintenance			9,400		10,286		11,151
	Mobile device accessories			44,465		42,381		55,529
	Total gross profit		$	130,889	$	138,158	$	147,039

Restructuring_Charge

Restructuring Charge	12 Months Ended
	Mar. 29, 2015
Restructuring Charge [Abstract]
Restructuring Charge	Note 10. Restructuring Charge
	In the fourth quarter of fiscal 2015, recognizing the ongoing challenging conditions caused by the carrier spending slowdown, the Company took actions to restructure our costs, resulting in a $0.6 million pre-tax charge, which is included in our Consolidated Statements of Income for fiscal year 2015. The restructuring charge primarily consists of severance-related expenses associated with a reduction in headcount.

Stock_Buyback

Stock Buyback	12 Months Ended
	Mar. 29, 2015
Stock Buyback [Abstract]
Stock Buyback	Note 11. Stock Buyback
	On April 23, 2014, the Board of Directors expanded the Company’s existing stock buyback program and authorized the purchase on a non-accelerated basis of up to $10.0 million of the Company’s stock over a 24-month period, ending in April 2016. Shares may be purchased from time to time in the open market, by block purchase, or through negotiated transactions, or possibly other transactions managed by broker-dealers. During fiscal 2015, the Company purchased 157,954 shares under the expanded stock buyback program for approximately $4.6 million, or an average cost of $29.17 per share. As of March 29, 2015, $5.4 million remained available for repurchase under this program.
	The Company also withholds shares 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 2015, 2014, and 2013 the total value of shares withheld for taxes was $1,612,900, $1,646,300, and $2,161,900, respectively.

Income_Taxes

Income Taxes	12 Months Ended
	Mar. 29, 2015
Income Taxes [Abstract]
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 provided in the consolidated statements of income is as follows:
		2015			2014			2013
	Statutory federal rate		34.2	%		35	%		35	%
	State taxes, net of federal benefit		4.1			3.3			2.9
	Non-deductible expenses		0.9			0.7			0.5
	Other		0			(0.8	)		0.2
	Effective rate		39.2	%		38.2	%		38.6	%
	The provision for income taxes was comprised of the following:
		2015			2014			2013
	Federal:   Current	$	3,035,400		$	9,252,700		$	10,593,200
	Deferred		1,964,800			(396,600	)		(929,600	)
	State:         Current		398,500			1,212,400			1,640,400
	Deferred		178,100			(5,400	)		(103,500	)
	Provision for income taxes		5,576,800		$	10,063,100		$	11,200,500
	Total deferred tax assets and deferred tax liabilities as of March 29, 2015 and March 30, 2014, 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 and liabilities, are as follows:
		2015			2014
	Deferred tax assets:
	Deferred compensation	$	802,700		$	1,260,000
	Accrued vacation		554,100			428,700
	Deferred rent		687,500			886,800
	Allowance for doubtful accounts		232,800			374,300
	Inventory reserves		2,175,500			1,530,000
	Sales tax reserves		459,600			472,700
	Other assets		516,000			1,660,600
	Restricted Stock		89,600			--
	Tax contingency reserve		286,200			299,900
	Total deferred tax assets	$	5,804,000		$	6,913,000
	Deferred tax liabilities:
	Depreciation and amortization		3,354,600			3,549,700
	Other liabilities		312,400			287,300
	Accrued compensation		873,700			--
	Prepaid expenses		767,400			423,700
	Total deferred tax liabilities	$	5,308,100		$	4,260,700
	Net Deferred Tax Asset	$	495,900		$	2,652,300
	The Company has reviewed its deferred tax assets realization and has determined that no valuation allowance is required as of March 29, 2015 or March 30, 2014.
	As of March 29, 2015, the gross amount of unrecognized tax benefits was $394,400 ($256,400 net of federal benefit). As of March 30, 2014, the Company had gross unrecognized tax benefits of $1,665,000 ($309,400 net of federal benefit).
	The Company’s accounting policy with respect to interest and penalties related to tax uncertainties is to classify these amounts as income taxes. The total amount of interest and penalties related to tax uncertainties recognized in the consolidated statement of income for fiscal year 2015 was a benefit of $31,600 (net of federal expense) and the cumulative amount included as a liability in the consolidated balance sheet as of march 29, 2015 was $323,800 (net of federal expense). The total amount of interest and penalties related to tax uncertainties recognized in the consolidated statement of income for fiscal year 2014 was a benefit of $23,300 (net of federal benefit) and the cumulative amount included in the consolidated balance sheet as of March 30, 2014 was $295,500 (net of federal benefit). The total amount of interest and penalties related to tax uncertainties recognized in the consolidated statement of income for fiscal year 2013 was an expense of $71,300 (net of federal benefit).
	As of March 29, 2015, the total net amount of unrecognized tax benefits, inclusive of indirect tax benefits and deferred tax benefits was $256,400 and associated penalties and interest were $323,800. The net amount of $580,200, if recognized, would affect the effective tax rate. The Company’s unrecognized tax benefits increased by $1,189,000 during the fiscal year ended March 30, 2014, due to its tax accounting method for certain accrued expenses. The Company’s unrecognized tax benefit decreased by $1,189,000 and such amount was reclassified to income taxes payable during fiscal 2015 due to the Company filing an automatic change to its method of accounting for certain accrued expenses with the IRS during the first quarter of fiscal 2015.
	A reconciliation of the changes in the gross balance of unrecognized tax benefit amounts, net of interest, is as follows:
		2015			2014			2013
	Beginning balance of unrecognized tax benefit	$	1,665,000		$	631,100		$	561,600
	Decrease due to reclassification to income tax payable		(1,189,000	)		1,189,000			--
	Increases related to current period tax positions		10,600			22,800			69,500
	Reductions as a result of a lapse in the applicable statute of limitations		(92,200	)		(177,900	)		--
	Ending balance of unrecognized tax benefits	$	394,400		$	1,665,000		$	631,100
	The Company files income tax returns in U.S. federal, state and local jurisdictions. Income tax returns filed for fiscal years 2008 and earlier are no longer subject to examination by U.S. federal, state and local tax authorities. No federal, state and local income tax returns are currently under examination.
	Certain income tax returns for fiscal years 2009 through 2015 remain open to examination by U.S. federal, state and local tax authorities.

Retirement_Plans

Retirement Plans	12 Months Ended
	Mar. 29, 2015
Retirement Plans [Abstract]
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 $524,200, $718,700, and $610,700 during fiscal years 2015, 2014, and 2013, respectively. As of March 29, 2015 plan assets included 127,693 shares of common stock of the Company.
	The Company maintains a Supplemental Executive Retirement Plan for Robert B. Barnhill, Jr., Chairman, President and CEO of the Company. 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 $1,769,600 and $941,300, respectively, as of March 29, 2015 and $1,491,300 and $822,200, respectively, as of March 30, 2014 are included in other long-term assets and other long-term liabilities, respectively, in the accompanying Consolidated Balance Sheets.

Earnings_Per_Share

Earnings Per Share	12 Months Ended
	Mar. 29, 2015
Earnings Per Share [Abstract]
Earnings Per Share	Note 14. Earnings Per Share
	The Company calculates earnings per share considering ASC No. 260 in regards to accounting for participating securities, which requires the Company to use the two-class method to calculate earnings per share. Under the two-class method, earnings per common share are computed by dividing the sum of the distributed earnings to common shareholders and undistributed earnings allocated to common shareholders by the weighted average number of common shares outstanding for the period. In applying the two-class method, undistributed earnings are allocated to both common shares and participating securities based on the weighted average shares outstanding during the period.
	The following table presents the calculation of basic and diluted earnings per common share:
		Amounts in thousands, except per share amounts
		2015			2014			2013
	Earnings per share – Basic:
	Net earnings	$	8,634		$	16,249		$	17,794
	Less: Distributed and undistributed earnings allocated to nonvested stock		(47	)		(134	)		(200	)
	Earnings available to common shareholders – Basic	$	8,587		$	16,115		$	17,594
	Weighted average common shares outstanding – Basic		8,171			8,134			7,929
	Earnings per common share – Basic	$	1.05		$	1.98		$	2.22
	Earnings per share – Diluted:
	Net earnings	$	8,634		$	16,249		$	17,794
	Less: Distributed and undistributed earnings allocated to nonvested stock		(19	)		(132	)		(197	)
	Earnings available to common shareholders – Diluted	$	8,615		$	16,117		$	17,597
	Weighted average common shares outstanding – Basic		8,171			8,134			7,929
	Effect of dilutive options		102			192			271
	Weighted average common shares outstanding – Diluted		8,273			8,326			8,200
	Earnings per common share – Diluted	$	1.04		$	1.94		$	2.15
	There were no stock options with respect to shares of common stock outstanding as of March 29, 2015, March 30, 2014, or March 31, 2013. There were no anti-dilutive Performance Stock Units or Restricted Stock then outstanding.

StockBased_Compensation

Stock-Based Compensation	12 Months Ended
	Mar. 29, 2015
Stock-Based Compensation [Abstract]
Stock-Based Compensation	Note 15. Stock‑Based Compensation
	The Company’s selling, general and administrative expenses for the fiscal years ended March 29, 2015, March 30, 2014, and March 31, 2013 includes $1,161,300, $2,087,100, and $2,536,800, respectively, of stock compensation expense. Provision for income taxes for the fiscal years ended March 29, 2015, March 30, 2014, and March 31, 2013 includes $441,300, $797,300, and $979,800, respectively, of income tax benefits related to our stock-based compensation arrangements. Stock compensation expense is primarily related to our Performance Stock Unit Program as described below.
	The Company’s stock incentive plan is the Second Amended and Restated 1994 Stock and Incentive Plan (the 1994 Plan). On July 21, 2011, the Company’s shareholders approved an amendment to the 1994 Plan increasing the number of shares of common stock available for the grant of awards by 690,000 shares, from 2,638,125 to an aggregate of 3,553,125 shares of the Company's common stock. As of March 29, 2015, 439,028 shares were available for issue in respect of future awards under the 1994 Plan. Subsequent to the Company’s 2015 fiscal year end, on May 11, 2015, based on fiscal 2015 results, 74,500 shares related to Performance Stock Units (PSUs) were canceled, and as a result, these shares were made available for future grants. Also on May 11, 2015, additional PSUs and restricted stock awards were issued providing recipients with the opportunity to earn up to an aggregate of 103,000 and 10,000 additional shares, respectively of the Company’s common stock. Accordingly, as of May 11, 2015, an aggregate of 400,528 shares were available for issue pursuant to future awards.
	No additional awards can be made under the 1994 Plan after July 21, 2016, without or unless made subject to shareholder approval of an extension of the plan term. Stock Options, restricted stock and PSU awards have historically been granted as awards under the 1994 Plan. Shares which are subject to outstanding PSU or other awards under the 1994 Plan, and which are not earned, are returned to the 1994 Plan and become available for future issuance in accordance with and otherwise subject to the terms of the 1994 Plan.
	Performance Stock Units: The Company’s equity-based compensation philosophy is generally focused on granting performance-based and time-vested stock grants. Under a program established by the Board of Directors, Performance Stock Units (PSUs) have been granted under the 1994 Plan to selected employees. Each PSU entitles the participant to earn TESSCO common stock, but only after earnings per share and, for non-director employee participants, individual performance targets are met over a defined performance cycle. Performance cycles, which are fixed for each grant at the date of grant, are one year. Once earned, shares vest and are issued over a specified period of time determined at the time of the grant, provided that the 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 cycle, and the resulting amount of estimated share issuances, net of estimated forfeitures. The Company estimated the forfeiture rate primarily based on historical experience and expectations of future forfeitures. The Company’s calculated estimated forfeiture rate is approximately 2%.
	The following table summarizes the activity under the Company’s PSU program for fiscal years 2015, 2014 and 2013:
			2015					2014					2013
			Shares			Weighted-		Shares			Weighted- A		Shares			Weighted-
						Average					verage					Average
						Fair Value					Fair Value					Fair Value
						at Grant					at Grant					at Grant
	Outstanding, non-vested beginning of period			317,127		$	15.96		455,979		$	12.77		604,844		$	9.81
	Granted			91,000			29.28		112,000			19.91		156,200			19.31
	Vested			(125,347	)		14.44		(199,066	)		10.22		(288,765	)		8.64
	Forfeited/canceled			(78,939	)		21.61		(51,786	)		18.47		(16,300	)		17.69
	Outstanding, non-vested end of period			203,841		$	20.65		317,127		$	15.96		455,979		$	12.77
	As of March 29, 2015, there was approximately $0.3 million of total unrecognized compensation cost, net of forfeitures, related to PSUs. These costs are expected to be recognized over a weighted average period of 1.6 years.  Total fair value of shares vested during fiscal years 2015, 2014 and 2013 was $4,364,500, $4,531,700 and $6,304,300, respectively.
	Of the 78,939 PSUs canceled during fiscal 2015, 49,979 related to the fiscal 2014 grant of PSUs and were canceled in April 2014. The PSUs were canceled because the applicable fiscal 2014 performance targets were not fully satisfied. The remaining 28,960 shares were forfeited due to employee departures during fiscal year 2015. Per the provisions of the 1994 Plan, the shares related to these forfeited and canceled PSUs were added back to the 1994 Plan and became available for future issuance.
	Of the outstanding PSUs covering 203,841 non-vested shares, PSUs covering 74,500 shares were canceled in May 2015, based on fiscal year 2015 activity. These PSUs were canceled because fiscal year 2015 earnings per share did not fully reach the target performance set forth in the PSU grants. The remaining 129,341 shares have been earned based on past performance, but are not yet vested as of March 29, 2015. Assuming the respective participants remain employed by, or affiliated with, the Company on the vesting dates, these shares will vest and be issued on or about May 1 of 2015, 2016, and 2017, as follows:
		Number of Shares
	2015	87,107
	2016	31,468
	2017	10,766
		129,341
	Subsequent to the Company’s 2015 fiscal year end, on May 11, 2015, the Compensation Committee, with the concurrence of the full Board of Directors, granted additional PSUs to selected key employees, providing them with the opportunity to earn up to 103,000 additional shares of the Company’s common stock in the aggregate, depending upon whether certain threshold or goal earnings per share targets are met and individual performance metrics are satisfied in fiscal year 2016. These PSUs have only one measurement year (fiscal year 2016), with any shares earned at the end of fiscal year 2016 to vest 25% on or about each of May 1 of 2016, 2017, 2018 and 2019, provided that the participant remains employed by or affiliated with the Company on each such date.
	Restricted Stock/Restricted Stock Units: During the second quarter of fiscal year 2007, the Company granted 225,000 shares of the Company’s common stock to its Chairman and Chief Executive Officer as a restricted stock award under the 1994 Plan. These shares vest ratably over ten fiscal years based on service, beginning on the last day of fiscal year 2007 and ending on the last day of fiscal year 2016, subject, however, to the terms applicable to the award, including terms providing for possible acceleration of vesting upon death, disability, change in control or certain other events. The weighted average fair value for these shares at the grant date was $10.56. On both March 29, 2015 and March 30, 2014, 22,500 shares of restricted stock were released and vested. As of March 29, 2015, there were 22,500 unvested shares and approximately $0.2 million of total unrecognized compensation costs related to restricted stock. Unrecognized compensation costs related to this award are expected to be recognized ratably over a period of approximately one year.
	On May 3, 2012, the Compensation Committee, with the concurrence of the full Board of Directors, granted an aggregate of 20,100 restricted stock unit, or RSU, awards to the 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 have vested or will vest, and shares have been or will be issued, 25% on or about each of May 1 of 2013, 2014, 2015 and 2016, 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 29, 2015, there was approximately $0.1 million of total unrecognized compensation costs related to these awards. Unrecognized compensation costs related to this award are expected to be recognized ratably over a period of approximately one year.
	On May 14, 2013, the Compensation Committee, with the concurrence of the full Board of Directors, granted an aggregate of 15,000 RSU awards to the non-employee directors of the Company with the exception of one individual who retired from the Board of Directors in July 2013. These awards provide for the issuance of shares of the Company’s 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 2014, 2015, 2016 and 2017, 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 29, 2015, 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 two years.
	On May 8, 2014, the Compensation Committee, with the concurrence of the full Board of Directors, granted an aggregate of 10,000 RSU 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 have vested or will vest, and shares have been or will be issued, 25% on or about each of May 1 of 2015, 2016, 2017 and 2018, 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 29, 2015, there was approximately $0.2 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.
	Subsequent to the Company’s 2015 fiscal year end, on May 11, 2015, the Compensation Committee, with the concurrence of the full Board of Directors, granted an aggregate of 10,000 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 May 1 of 2016, 2017, 2018 and 2019, provided that the participant remains associated with the Company (or meets other criteria as prescribed in the agreement) on each such date.
	Compensation expense on restricted stock is measured using the grant date price, net of the present value of dividends expected to be paid on TESSCO common stock before the RSU award vests.
	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 29, 2015, March 30, 2014, and March 31, 2013 were $67,300, $68,400, and $59,400, respectively. During the fiscal years ended March 29, 2015, March 30, 2014, and March 31, 2013, 8,547, 9,604, and 11,009 shares were sold to employees under this plan, having a weighted average market value of $22.93, $22.21, and $15.80, respectively.

Fair_Value_Disclosure

Fair Value Disclosure	12 Months Ended
	Mar. 29, 2015
Fair Value Disclosure [Abstract]
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 29, 2015 and March 30, 2014, 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 and other current liabilities approximate their fair values as of March 29, 2015 and March 30, 2014 due to their short term nature.
	Fair value of long term debt is calculated using current market interest rates, which we consider to be a Level 2 input as described in the fair value accounting guidance on fair value measurements, and future principle payments, as of March 29, 2015 and March 30, 2014  is estimated as follows:
			2015				2014
			Carrying		Fair		Carrying		Fair
			Amount		Value		Amount		Value
	Note payable to a Bank		$	2,100,000	$	2,031,400	$	2,325,000	$	2,200,500
	Note payable to Baltimore County		$	108,200	$	102,300	$	133,400	$	124,400

Supplemental_Cash_Flow_Informa

Supplemental Cash Flow Information	12 Months Ended
	Mar. 29, 2015
Supplemental Cash Flow Information [Abstract]
Supplemental Cash Flow Information	Note 17. Supplemental Cash Flow Information
	Cash paid for income taxes net of refunds, for fiscal years 2015, 2014, and 2013 totaled $4,914,000, $8,355,900, and $11,847,300, respectively. Cash paid for interest during fiscal years 2015, 2014, and 2013 totaled $174,600, $198,400, and $208,300, respectively. Interest of $3,400 was capitalized during fiscal 2015. No interest was capitalized during fiscal years 2014 and 2013.

Concentration_of_Risk

Concentration of Risk	12 Months Ended
	Mar. 29, 2015
Concentration of Risk [Abstract]
Concentration of Risk	Note 18. Concentration of Risk
	Sales to customers and purchases from vendors 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 vendors, 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 2015, 2014, and 2013, sales of products purchased from the Company's top ten vendors accounted for 41%, 43%, and 42% of total revenues, respectively. In fiscal year 2015 and 2014, sales of product purchased from the Company’s largest vendor, CommScope Incorporated, accounted for approximately 14% and 16% of revenue, respectively. In fiscal year 2013, sales of product purchased from the Company’s largest vendor, Otter Products LLC, a significant portion of which were sold to the Company’s former largest customer AT&T Mobility, accounted for approximately 9% of total revenues. The Company is dependent on the ability of its vendors to provide products on a timely basis and on favorable pricing terms. Although the Company believes that alternative sources of supply are available for many of the product types it carries, the loss of certain principal suppliers, or the loss of one or more of certain ongoing affinity relationships, could 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 vendor relationships. For fiscal years 2015, 2014, and 2013, sales of products to the Company's top ten customer relationships accounted for 20%, 19%, and 39% of total revenues, respectively. No customer accounted for more than 7% of total revenues in fiscal 2015 and 2014. In fiscal year 2013, sales to the Company’s former largest customer relationship, AT&T Mobility, accounted for approximately 30% of total revenues.
	In April 2012, the Company was notified by AT&T of their intention to transition their third party logistics retail store supply chain business away from TESSCO beginning in the second quarter of our fiscal 2013. This business fully transitioned as of the close of fiscal 2013.

Quarterly_Results_of_Operation

Quarterly Results of Operations (Unaudited)	12 Months Ended
	Mar. 29, 2015
Quarterly Results of Operations (Unaudited) [Abstract]
Quarterly Results of Operations (Unaudited)	Note 19. Quarterly Results of Operations (Unaudited)
	Summarized quarterly financial data for the fiscal years ended March 29, 2015 and March 30, 2014 is presented in the table below:
		Fiscal Year 2015 Quarters Ended									Fiscal Year 2014 Quarters Ended
		Mar. 29,			Dec. 28,		Sept. 28,		Jun. 29,		Mar. 30,		Dec. 29,		Sept. 29,		Jun. 30,
		2015			2014		2014		2014		2014		2013		2013		2013
	Revenues	$	112,962,200		$	135,188,700	$	148,521,800	$	152,946,300	$	124,536,600	$	144,915,200	$	146,526,000	$	144,108,800
	Cost of goods sold		85,271,400			102,675,800		113,085,800		117,697,500		94,451,800		108,772,800		110,033,200		108,670,900
	Gross profit		27,690,800			32,512,900		35,436,000		35,248,800		30,084,800		36,142,400		36,492,800		35,437,900
	Selling, general and administrative expenses		27,362,100			29,828,800		29,569,400		29,176,400		25,315,700		28,974,800		28,903,400		28,474,100
	Restructuring charges		573,400			--		--		--		--		--		--		--
	Operating expenses		27,935,500			29,828,800		29,569,400		29,176,400		25,315,700		28,974,800		28,903,400		28,474,100
	(Loss) income from operations		(244,700	)		2,684,100		5,866,600		6,072,400		4,769,100		7,167,600		7,589,400		6,963,800
	Interest, net		28,200			61,300		49,400		28,400		18,300		37,800		67,000		54,600
	(Loss) income before provision for income taxes		(272,900	)		2,622,800		5,817,200		6,044,000		4,750,800		7,129,800		7,522,400		6,909,200
	Provision income taxes		(41,000	)		941,600		2,303,600		2,372,600		1,795,500		2,709,300		2,941,300		2,617,000
	Net (loss) income	$	(231,900	)	$	1,681,200	$	3,513,600	$	3,671,400	$	2,955,300	$	4,420,500	$	4,581,100	$	4,292,200
	Diluted (loss) earnings per share	$	(0.03	)	$	0.2	$	0.42	$	0.44	$	0.35	$	0.53	$	0.55	$	0.51
	Cash dividends declared per common share	$	0.2		$	0.2	$	0.2	$	0.2	$	0.2	$	0.18	$	0.18	$	0.18

Subsequent_Events

Subsequent Events	12 Months Ended
	Mar. 29, 2015
Subsequent Events [Abstract]
Subsequent Events	Note 20. Subsequent Events
	Effective May 26, 2015, pursuant to a mutually agreed Letter Agreement, Said Tofighi ceased to serve as Senior Vice President of Global Manufacturer Supply Chain and Ventev Innovations of the Company. Mr. Tofighi will remain employed by the Company in a transitional role until August 28, 2015, when his employment with the Company will terminate.
	The parties have agreed that Mr. Tofighi will receive a severance payment equal to 1.00 times his current base salary ($345,000) to be paid in two equal installments, the first on August 28, 2015 and the second on April 1, 2016, assuming certain conditions are satisfied. These include the delivery by Mr. Tofighi of a release, and his not accepting any executive or senior management position (regardless of whether it is competitive with the Company), and not engaging in any business competitive with the Company, through February 28, 2016.
	Mr. Tofighi has also agreed that he will not be entitled to any “Value Share” payment that he otherwise may have been entitled to for fiscal 2016, and that he is entitled to receive only previously earned Performance Shares that are distributable prior to termination of his employment on August 28, 2015. He will not be entitled to receive any Performance Shares that might have otherwise become distributable to him after that date. Accordingly, and assuming his employment terminates on August 28, 2015 and the non-occurrence of an event resulting in accelerated vesting of outstanding PSUs, an aggregate of 5,768 Performance Shares will then be forfeited.

Schedule_II_Valuation_and_Qual

Schedule II - Valuation and Qualifying Accounts	12 Months Ended
	Mar. 29, 2015
Schedule II - Valuation and Qualifying Accounts [Abstract]
Schedule II - Valuation and Qualifying Accounts	Schedule II: Valuation and Qualifying Accounts
	For the fiscal years ended:
		2015			2014			2013
	Allowance for doubtful accounts:
	Balance, beginning of period	$	1,080,300		$	1,274,700		$	998,800
	Provision for bad debts		943,300			202,000			1,197,300
	Write-offs and other adjustments		(1,361,700	)		(396,400	)		(921,400	)
	Balance, end of period	$	661,900		$	1,080,300		$	1,274,700
		2015			2014			2013
	Inventory Reserve:
	Balance, beginning of period	$	4,086,100		$	3,336,700		$	3,268,900
	Inventory reserve expense		2,098,800			1,428,100			2,581,200
	Write-offs and other adjustments		(404,300	)		(678,700	)		(2,513,400	)
	Balance, end of period	$	5,780,600		$	4,086,100		$	3,336,700

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Mar. 29, 2015
Summary of Significant Accounting Policies [Abstract]
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 29, 2015, March 30, 2014 and March 31, 2013 each contain 52 weeks.
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.
Product Inventory	Product Inventory
	Product inventory, consisting primarily of finished goods, is stated at the lower of cost or market, 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 market value, based upon specifically known inventory-related risks (such as technological obsolescence and the nature of vendor terms surrounding price protection and product returns), and assumptions about future demand. At March 29, 2015 and March 30, 2014,  the Company had a reserve for excess and/or obsolete inventory of $5,780,600 and $4,086,100, respectively.
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 and software	1‑5 years
	Configuration, Fulfillment and Delivery technology system	7 years
	Furniture, telephone system, equipment and tooling	3‑10 years
	Building, building improvements and leasehold improvements	2‑40 years
	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 software project is either for the development of 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.
	Leasehold improvements are amortized over the shorter of their useful lives or the remaining lease term.
Impairment of Long-Lived Assets	Impairment of Long-Lived Assets
	Long-lived assets, including amortizable intangible 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 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 in fiscal years 2015, 2014 or 2013.
	Assets to be disposed of are reported at the lower of carrying value or fair values, less estimated costs of disposal.
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets
	Goodwill represents the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Goodwill amounts and indefinite lived intangible assets are not amortized, but rather are tested for impairment at least annually or whenever an impairment indicator is identified. The Company performs its annual impairment test on the first day of its fourth quarter. Intangible assets that are not considered to have an indefinite useful life are amortized over their useful life of 4 to 6 years using the straight-line method. Intangible assets other than goodwill are recorded within other long-term assets in the Company’s Consolidated Balance Sheets. The goodwill 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 performs an additional two-step approach. Under the first step, the Company determines the fair value of each reporting unit to which goodwill has been assigned. The Company then compares the fair value of each reporting unit to its carrying value, including goodwill. The Company estimates the fair value of each reporting unit using various valuation techniques, with the primary technique being a discounted cash flow or income approach, under which the Company estimates the present value of the reporting unit’s future cash flows. Key assumptions used to determine the present value of a reporting unit’s future cash flows include (a) a cash flow period; (b) a terminal value based on a growth rate; and (c) a discount rate, which is based on the Company’s weighted average cost of capital adjusted for risks associated with our operations. If the fair value exceeds the carrying value, no impairment loss is recognized. If the carrying value exceeds the fair value, the goodwill of the reporting unit is considered potentially impaired and the second step is completed in order to measure the impairment loss. Under the second step, the Company calculates the implied fair value of goodwill by deducting the fair value of all tangible and intangible net assets, including any unrecognized intangible assets, of the reporting unit from the fair value of the reporting unit as determined in the first step. The Company then compares the implied fair value of goodwill to the carrying value of goodwill. If the implied fair value of goodwill is less than the carrying value of goodwill, the Company recognizes an impairment loss equal to the difference.
	The indefinite lived intangible asset impairment test requires the determination of 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. Fair value is determined using estimates of discounted cash flows. These estimates of discounted cash flows will likely change over time as impairment tests are performed. Estimates of fair value are also adversely affected by increases in interest rates and the applicable discount rate.
	Based on the Company’s qualitative and/or quantitative impairment testing performed, the Company did not recognize an impairment loss on goodwill or other indefinite lived intangible assets in fiscal years 2015, 2014 or 2013.
	The methods of assessing fair value for 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.
Revenue Recognition	Revenue Recognition
	The Company records revenues when 1) persuasive evidence of an arrangement exists, 2) delivery has occurred or services have been rendered, 3) price to the buyer is fixed or determinable, and 4) collectability is reasonably assured. The Company’s revenue recognition policy includes evidence of arrangements for significant revenue transactions through either receipt of a customer purchase order or a web-based order. The Company records revenues when risk of loss has passed to the customer. In most cases, shipments are made using FOB 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. The Company sells under normal commercial terms and, therefore, only records sales on transactions where collectability is reasonably assured. The Company recognizes revenues net of sales tax.
	Because the Company’s sales transactions meet the conditions set forth in the Financial Accounting Standards Board’s (“FASB”) Accounting Standards Codification (“ASC”) No. 605 and/or 606, it recognizes revenues from sales transactions containing sales returns provisions at the time of the sale. These conditions require that 1) the price be substantially fixed or determinable at the date of sale, 2) the buyer is obligated to pay, and the payment is not contingent on their resale of the product, 3) the buyer’s obligation to the Company does not change in the event of theft or physical destruction or damage of the product, 4) the buyer has economic substance apart from the Company, 5) the Company does not have significant obligations for future performance to directly bring about resale of the product by the buyer, and 6) the amount of future returns can be reasonably estimated. Because the Company’s normal terms and conditions of sale are consistent with conditions 1-5 above, and the Company is able to perform condition 6, it makes a reasonable estimate of product returns in sales transactions and accrues a sales return reserve based on this estimate.
	Certain companies have turned to TESSCO to implement supply chain solutions, including purchasing inventory, assisting in demand forecasting, configuring, packaging, kitting and delivering products and managing customer and vendor relations, from order taking through cash collections. In performing these solutions, the Company assumes varying levels of involvement in the transactions and varying levels of credit and inventory risk. As the Company’s solutions offerings continually evolve to meet the needs of its 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 the ASC No. 605-45, the Company looks at the following indicators: whether it is the primary obligor in the transaction; whether it has general inventory risk; whether it has latitude in establishing price; the extent to which it changes the product or performs part of the service; whether it has discretion in supplier selection; whether it is involved in the determination of product and service specifications; whether it has physical inventory risk; whether it has credit risk; and whether the amount it earns is fixed. 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 2015). If applying this revenue recognition guidance resulted in recording revenues on a different basis from which the Company has previously concluded, or if the factors above change significantly, revenues could increase or decrease; however, gross profit and net income would remain constant.
	Service revenue associated with training and other services is recognized when the training or work is complete and the four criteria discussed above have been met. Service revenues have represented less than 1% of total revenues for fiscal years 2015, 2014 and 2013.
	Other than sales relating to the Company’s private brands, we offer no product warranties in excess of original equipment manufacturers’ warranties. The Company’s warranty expense is estimated and accrued at the time of sale. Warranty expense was immaterial for fiscal years 2015, 2014 and 2013.
Vendor Programs	Vendor Programs
	Funds received from vendors for price protection, product rebates and marketing/promotion are recorded in accordance with ASC 605.
Classification of Expenses	Classification of Expenses
	Cost of goods sold includes cost of products and freight from vendors to our distribution centers. Product management, distribution, purchasing, receiving/inspection, warehousing, freight from our distribution centers to our customers’ sites, and corporate overhead costs are included in selling, general and administrative expenses. Certain selling, general and administrative expenses related to direct and indirect labor and certain freight-in expenses are included in inventory. As of March 29, 2015 and March 30, 2014, the amount of selling, general and administrative expenses and freight in expenses included in inventory was $3,008,200 and $2,261,500, respectively.
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 Income and totaled $13,700,000, $13,364,600, and $13,674,300 for the fiscal years ended March 29, 2015, March 30, 2014, and March 31, 2013, respectively.
Stock Compensation Awards Granted to Team Members	Stock Compensation Awards Granted to Team Members
	The Company records stock compensation expense for awards in accordance with ASC No. 718, which requires the Company to include in its calculation of periodic stock compensation expense an estimate of future 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, the Company recognizes a provision for tax uncertainties in its financial statements. See Note 12 for further discussion of the standard and its impact on the Company’s consolidated financial statements.
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 goodwill and other long-lived assets. Actual results could significantly differ from those estimates.
Impact of Recently Issued Accounting Standards	Impact of Recently Issued Accounting Standards
	In May 2014, the FASB issued Accounting Standards Update No. 2014-09, Revenue from Contracts with Customers. This guidance will supersede Topic 605, Revenue Recognition, in addition to other industry-specific guidance, once effective. The new standard requires a company to recognize revenue in a manner that depicts the transfer of promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods and services.  The accounting standard is effective for annual periods beginning after December 15, 2016. On April 29, 2015 the FASB issued for public comment a proposal to defer the effective date of the standard by one year. We are currently in the process of assessing what impact this new standard may have on our ongoing financial reporting and determining what transition method will be used.
	In June 2014, the FASB issue Accounting Standards Update No. 2014-12, Compensation – Stock Compensation. This pronouncement provides guidance on accounting for share-based awards where the performance target could be achieved after an employee completes the requisite service period. We currently do not have any share-based arrangements of this type; therefore, this guidance is not expected to have an impact on our results of operations or financial condition. See Note 15 for the details of our stock based compensation.

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Mar. 29, 2015
Summary of Significant Accounting Policies [Abstract]
Property and Equipment Useful Life	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 and software	1‑5 years
	Configuration, Fulfillment and Delivery technology system	7 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. 29, 2015
Property and Equipment [Abstract]
Property and Equipment	Property and equipment, and is summarized as follows:
		2015			2014
	Land	$	4,740,800		$	4,740,800
	Building, building improvements and leasehold improvements		21,375,500			21,202,400
	Information technology equipment and computer software		25,751,500			24,625,800
	Furniture, telephone system, equipment and tooling		7,809,400			7,734,000
			59,677,200			58,303,000
	Less accumulated depreciation and amortization		(38,565,400	)		(35,537,600	)
	Property and equipment, net	$	21,111,800		$	22,765,400

Accrued_expenses_and_other_cur1

Accrued expenses and other current liabilities (Tables)	12 Months Ended
	Mar. 29, 2015
Accrued expenses and other current liabilities [Abstract]
Accrued Expenses and Other Current Liabilities	Accrued expenses and other current liabilities consisted of the following:
		29-Mar-15		30-Mar-14
	Deferred Revenue	$	6,959,300	$	--
	Other Accrued Expenses		1,729,200		923,600
	Total Accrued Expenses	$	8,688,500	$	923,600

LongTerm_Debt_Tables

Long-Term Debt (Tables)	12 Months Ended
	Mar. 29, 2015
Long-Term Debt [Abstract]
Scheduled Annual Maturities of Long-Term Debt	As of March 29, 2015, scheduled annual maturities of long-term debt are as follows:
	Fiscal year:
	2016	$	250,700
	2017		1,901,200
	2018		26,700
	2019		27,300
	2020		2,300
	Thereafter		--
		$	2,208,200

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	12 Months Ended
	Mar. 29, 2015
Commitments and Contingencies [Abstract]
Minimum Future Obligations Under Operating Leases	The Company’s minimum future obligations as of March 29, 2015 under existing operating leases are as follows:
	Fiscal year:
	2016	$	3,032,100
	2017		2,983,100
	2018		2,020,500
	2019		143,600
	2020		11,100
	Thereafter		--
		$	8,190,400

Operating_Segments_Tables

Operating Segments (Tables)	12 Months Ended
	Mar. 29, 2015
Operating Segments [Abstract]
Revenue Information by Market	Market activity for the fiscal years ended 2015, 2014 and 2013 is as follows (in thousands):
		29-Mar-15		30-Mar-14		31-Mar-13
	Revenues
	Public Carriers, Contractors & Program Managers	$	127,426	$	149,196	$	111,146
	Government System Operators		31,495		33,757		35,857
	Private System Operators		86,725		81,559		85,456
	Commercial Dealers & Resellers		134,195		140,552		138,737
	Retailer, Independent Dealer Agents & Carriers		169,778		155,023		167,895
	Revenue, excluding Major 3PL relationship		549,619		560,087		539,091
	Major 3PL relationship		--		--		213,474
	Total revenues		549,619		560,087		752,565
	Gross Profit
	Public Carriers, Contractors & Program Managers		24,081		31,013		24,183
	Government System Operators		8,283		8,497		9,231
	Private System Operators		22,926		23,110		24,365
	Commercial Dealers & Resellers		37,977		39,396		38,345
	Retailer, Independent Dealer Agents & Carriers		37,622		36,142		35,903
	Gross profit, excluding Major 3PL relationship		130,889		138,158		132,027
	Major 3PL relationship		--		--		15,012
	Total gross profit		130,889		138,158		147,039
	Selling, general, administrative, and interest expenses		116,104		111,846		118,045
	Restructuring charge		573		--		--
	Operating and interest expenses		116,677		111,846		118,045
	Income before provision for income taxes	$	14,211	$	26,312	$	28,994
Revenue Information by Product	Supplemental revenue and gross profit information by product category for the fiscal years 2015, 2014 and 2013 are as follows (in thousands):
		29-Mar-15		30-Mar-14		31-Mar-13
	Revenues
	Base station infrastructure	$	224,135	$	252,983	$	227,510
	Network systems		96,399		89,411		78,989
	Installation, test and maintenance		41,790		45,343		47,766
	Mobile device accessories		187,295		172,350		398,300
	Total revenues	$	549,619	$	560,087	$	752,565
	Gross Profit
	Base station infrastructure		60,960		69,451		65,472
	Network systems		16,064		16,040		14,887
	Installation, test and maintenance		9,400		10,286		11,151
	Mobile device accessories		44,465		42,381		55,529
	Total gross profit	$	130,889	$	138,158	$	147,039

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
	Mar. 29, 2015
Income Taxes [Abstract]
Effective Income Tax Rate Reconciliation	A reconciliation of the difference between the provision for income taxes computed at statutory rates and the provision for income taxes provided in the consolidated statements of income is as follows:
		2015			2014			2013
	Statutory federal rate		34.2	%		35	%		35	%
	State taxes, net of federal benefit		4.1			3.3			2.9
	Non-deductible expenses		0.9			0.7			0.5
	Other		0			(0.8	)		0.2
	Effective rate		39.2	%		38.2	%		38.6	%
Provision for Income Taxes	The provision for income taxes was comprised of the following:
		2015			2014			2013
	Federal:   Current	$	3,035,400		$	9,252,700		$	10,593,200
	Deferred		1,964,800			(396,600	)		(929,600	)
	State:         Current		398,500			1,212,400			1,640,400
	Deferred		178,100			(5,400	)		(103,500	)
	Provision for income taxes		5,576,800		$	10,063,100		$	11,200,500
Deferred Tax Assets and Liabilities	Total deferred tax assets and deferred tax liabilities as of March 29, 2015 and March 30, 2014, 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 and liabilities, are as follows:
		2015			2014
	Deferred tax assets:
	Deferred compensation	$	802,700		$	1,260,000
	Accrued vacation		554,100			428,700
	Deferred rent		687,500			886,800
	Allowance for doubtful accounts		232,800			374,300
	Inventory reserves		2,175,500			1,530,000
	Sales tax reserves		459,600			472,700
	Other assets		516,000			1,660,600
	Restricted Stock		89,600			--
	Tax contingency reserve		286,200			299,900
	Total deferred tax assets	$	5,804,000		$	6,913,000
	Deferred tax liabilities:
	Depreciation and amortization		3,354,600			3,549,700
	Other liabilities		312,400			287,300
	Accrued compensation		873,700			--
	Prepaid expenses		767,400			423,700
	Total deferred tax liabilities	$	5,308,100		$	4,260,700
	Net Deferred Tax Asset	$	495,900		$	2,652,300
Reconciliation of Changes in Gross Balance of Unrecognized Tax Benefit Amounts, Net of Interest	A reconciliation of the changes in the gross balance of unrecognized tax benefit amounts, net of interest, is as follows:
		2015			2014			2013
	Beginning balance of unrecognized tax benefit	$	1,665,000		$	631,100		$	561,600
	Decrease due to reclassification to income tax payable		(1,189,000	)		1,189,000			--
	Increases related to current period tax positions		10,600			22,800			69,500
	Reductions as a result of a lapse in the applicable statute of limitations		(92,200	)		(177,900	)		--
	Ending balance of unrecognized tax benefits	$	394,400		$	1,665,000		$	631,100

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	12 Months Ended
	Mar. 29, 2015
Earnings Per Share [Abstract]
Calculation of Basic and Diluted Earnings Per Common Share	The following table presents the calculation of basic and diluted earnings per common share:
		Amounts in thousands, except per share amounts
		2015			2014			2013
	Earnings per share – Basic:
	Net earnings	$	8,634		$	16,249		$	17,794
	Less: Distributed and undistributed earnings allocated to nonvested stock		(47	)		(134	)		(200	)
	Earnings available to common shareholders – Basic	$	8,587		$	16,115		$	17,594
	Weighted average common shares outstanding – Basic		8,171			8,134			7,929
	Earnings per common share – Basic	$	1.05		$	1.98		$	2.22
	Earnings per share – Diluted:
	Net earnings	$	8,634		$	16,249		$	17,794
	Less: Distributed and undistributed earnings allocated to nonvested stock		(19	)		(132	)		(197	)
	Earnings available to common shareholders – Diluted	$	8,615		$	16,117		$	17,597
	Weighted average common shares outstanding – Basic		8,171			8,134			7,929
	Effect of dilutive options		102			192			271
	Weighted average common shares outstanding – Diluted		8,273			8,326			8,200
	Earnings per common share – Diluted	$	1.04		$	1.94		$	2.15

StockBased_Compensation_Tables

Stock-Based Compensation (Tables)	12 Months Ended
	Mar. 29, 2015
Stock-Based Compensation [Abstract]
Nonvested Performance-based Units Activity	The following table summarizes the activity under the Company’s PSU program for fiscal years 2015, 2014 and 2013:
			2015					2014					2013
			Shares			Weighted-		Shares			Weighted- A		Shares			Weighted-
						Average					verage					Average
						Fair Value					Fair Value					Fair Value
						at Grant					at Grant					at Grant
	Outstanding, non-vested beginning of period			317,127		$	15.96		455,979		$	12.77		604,844		$	9.81
	Granted			91,000			29.28		112,000			19.91		156,200			19.31
	Vested			(125,347	)		14.44		(199,066	)		10.22		(288,765	)		8.64
	Forfeited/canceled			(78,939	)		21.61		(51,786	)		18.47		(16,300	)		17.69
	Outstanding, non-vested end of period			203,841		$	20.65		317,127		$	15.96		455,979		$	12.77
Nonvested Performance-based Units Expected to Vest by Fiscal Year Maturity	Of the outstanding PSUs covering 203,841 non-vested shares, PSUs covering 74,500 shares were canceled in May 2015, based on fiscal year 2015 activity. These PSUs were canceled because fiscal year 2015 earnings per share did not fully reach the target performance set forth in the PSU grants. The remaining 129,341 shares have been earned based on past performance, but are not yet vested as of March 29, 2015. Assuming the respective participants remain employed by, or affiliated with, the Company on the vesting dates, these shares will vest and be issued on or about May 1 of 2015, 2016, and 2017, as follows:
		Number of Shares
	2015	87,107
	2016	31,468
	2017	10,766
		129,341

Fair_Value_Disclosure_Tables

Fair Value Disclosure (Tables)	12 Months Ended
	Mar. 29, 2015
Fair Value Disclosure [Abstract]
Fair Value of Long-term Debt	Fair value of long term debt is calculated using current market interest rates, which we consider to be a Level 2 input as described in the fair value accounting guidance on fair value measurements, and future principle payments, as of March 29, 2015 and March 30, 2014  is estimated as follows:
		2015				2014
		Carrying		Fair		Carrying		Fair
		Amount		Value		Amount		Value
	Note payable to a Bank	$	2,100,000	$	2,031,400	$	2,325,000	$	2,200,500
	Note payable to Baltimore County	$	108,200	$	102,300	$	133,400	$	124,400

Quarterly_Results_of_Operation1

Quarterly Results of Operations (Unaudited) (Tables)	12 Months Ended
	Mar. 29, 2015
Quarterly Results of Operations (Unaudited) [Abstract]
Summarized Quarterly Financial Data	Summarized quarterly financial data for the fiscal years ended March 29, 2015 and March 30, 2014 is presented in the table below:
		Fiscal Year 2015 Quarters Ended									Fiscal Year 2014 Quarters Ended
		Mar. 29,			Dec. 28,		Sept. 28,		Jun. 29,		Mar. 30,		Dec. 29,		Sept. 29,		Jun. 30,
		2015			2014		2014		2014		2014		2013		2013		2013
	Revenues	$	112,962,200		$	135,188,700	$	148,521,800	$	152,946,300	$	124,536,600	$	144,915,200	$	146,526,000	$	144,108,800
	Cost of goods sold		85,271,400			102,675,800		113,085,800		117,697,500		94,451,800		108,772,800		110,033,200		108,670,900
	Gross profit		27,690,800			32,512,900		35,436,000		35,248,800		30,084,800		36,142,400		36,492,800		35,437,900
	Selling, general and administrative expenses		27,362,100			29,828,800		29,569,400		29,176,400		25,315,700		28,974,800		28,903,400		28,474,100
	Restructuring charges		573,400			--		--		--		--		--		--		--
	Operating expenses		27,935,500			29,828,800		29,569,400		29,176,400		25,315,700		28,974,800		28,903,400		28,474,100
	(Loss) income from operations		(244,700	)		2,684,100		5,866,600		6,072,400		4,769,100		7,167,600		7,589,400		6,963,800
	Interest, net		28,200			61,300		49,400		28,400		18,300		37,800		67,000		54,600
	(Loss) income before provision for income taxes		(272,900	)		2,622,800		5,817,200		6,044,000		4,750,800		7,129,800		7,522,400		6,909,200
	Provision income taxes		(41,000	)		941,600		2,303,600		2,372,600		1,795,500		2,709,300		2,941,300		2,617,000
	Net (loss) income	$	(231,900	)	$	1,681,200	$	3,513,600	$	3,671,400	$	2,955,300	$	4,420,500	$	4,581,100	$	4,292,200
	Diluted (loss) earnings per share	$	(0.03	)	$	0.2	$	0.42	$	0.44	$	0.35	$	0.53	$	0.55	$	0.51
	Cash dividends declared per common share	$	0.2		$	0.2	$	0.2	$	0.2	$	0.2	$	0.18	$	0.18	$	0.18

Organization_Details

Organization (Details)	Mar. 29, 2015
Organization [Abstract]
Percentage of sales in US (in hundredths)	98.00%

Summary_of_Significant_Account3

Summary of Significant Accounting Policies (Details) (USD $)	12 Months Ended
	Mar. 29, 2015	Mar. 30, 2014	Mar. 31, 2013
Summary of Significant Accounting Policies [Abstract]
Payment period from large majority of commercial customers	30 days
Reserves for excess or obsolescence inventory	$5,780,600	$4,086,100
Expenses included in inventory	3,008,200	2,261,500
Shipping cost included in selling, general and administrative expenses	13,700,000	13,364,600	13,674,300
Impairment charges	0	0	0
Finite-Lived Intangible Assets [Line Items]
Impairment loss on indefinite-lived intangible assets (excluding goodwill)	$0	$0	$0
Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Useful Life	4 years
Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Useful Life	6 years
Revenue Recognition [Line Items]
Percentage of service revenue to total revenue (in hundredths)	1.00%	1.00%	1.00%
Percentage of revenue recorded on net fee basis relationship (in hundredths)	1.00%
Information Technology Equipment and Software [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful Lives	1 year
Information Technology Equipment and Software [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful Lives	5 years
Configuration, Fulfillment and Delivery Technology System [Member]
Property, Plant and Equipment [Line Items]
Useful Lives	7 years
Furniture, Telephone System, Equipment and Tooling [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful Lives	3 years
Furniture, Telephone System, Equipment and Tooling [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful Lives	10 years
Building, Building Improvements and Leasehold Improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful Lives	2 years
Building, Building Improvements and Leasehold Improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful Lives	40 years

Property_and_Equipment_Details

Property and Equipment (Details) (USD $)	12 Months Ended
	Mar. 29, 2015	Mar. 30, 2014	Mar. 31, 2013
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$59,677,200	$58,303,000
Less: Accumulated depreciation and amortization	-38,565,400	-35,537,600
Property and equipment, net	21,111,800	22,765,400
Depreciation and amortization	4,583,600	4,852,800	4,926,400
Land [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	4,740,800	4,740,800
Building, Building Improvements and Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	21,375,500	21,202,400
Information Technology Equipment and Computer Software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	25,751,500	24,625,800
Capitalized computer software	844,000	1,012,400
Amortization expense of capitalized computer software	797,800	980,300	1,322,400
Furniture, Telephone System, Equipment and Tooling [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$7,809,400	$7,734,000

Goodwill_and_Other_Intangible_1

Goodwill and Other Intangible Assets (Details) (USD $)	12 Months Ended
	Mar. 30, 2014	Mar. 31, 2013	Mar. 29, 2015
Goodwill and Other Intangible Assets [Abstract]
Other intangible assets	$850,000		$850,000
Amortization expense	$12,300	$53,000

Accrued_expenses_and_other_cur2

Accrued expenses and other current liabilities (Details) (USD $)	Mar. 29, 2015	Mar. 30, 2014
Accrued expenses and other current liabilities [Abstract]
Deferred Revenue	$6,959,300	$0
Other Accrued Expenses	1,729,200	923,600
Total Accrued Expenses	$8,688,500	$923,600

Borrowings_Under_Revolving_Cre1

Borrowings Under Revolving Credit Facility (Details) (USD $)	0 Months Ended	12 Months Ended
	Dec. 27, 2012	Mar. 29, 2015	Mar. 30, 2014	Mar. 31, 2013	Oct. 16, 2013
Line of Credit Facility [Line Items]
Maximum borrowings during period		$17,331,900	$13,467,000	$18,989,600
Covenant compliance		The Company was in compliance with the terms and financial covenants applicable to each of the revolving credit facility and term loan facility.	The Company was in compliance with the terms and financial covenants applicable to each of the revolving credit facility and term loan facility.	The Company was in compliance with the terms and financial covenants applicable to each of the revolving credit facility and term loan facility.
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Maximum borrowing capacity		35,000,000	35,000,000		35,000,000
Expiration date		31-Oct-16
Common stock dividends (in dollars per share)	$0.75
Dividends payable, date paid	27-Dec-12
Dividends payable, date of record	13-Dec-12
Purchase of additional shares of common stock		11,700,000
Interest rate variable rate basis		LIBOR
Weighted average interest rate (in hundredths)		1.65%	2.35%	2.68%
Interest expense		78,200	53,400	77,400
Average borrowings during period		4,672,300	2,243,900	2,858,500
Amount outstanding		0	0
Revolving Credit Facility [Member] | Minimum [Member]
Line of Credit Facility [Line Items]
Interest rate spread on variable rate basis (in hundredths)		1.50%
Revolving Credit Facility [Member] | Maximum [Member]
Line of Credit Facility [Line Items]
Dividend payment permitted by lender agreement		8,000,000
Rolling dividend payment period permitted by lender agreement		12 months
Stock repurchase permitted by lender agreement		$30,000,000
Interest rate spread on variable rate basis (in hundredths)		2.50%

LongTerm_Debt_Details

Long-Term Debt (Details) (USD $)	0 Months Ended	12 Months Ended
	Jun. 30, 2011	Mar. 29, 2015	Mar. 30, 2014	Mar. 31, 2013	Mar. 27, 2005	Jun. 30, 2004	Mar. 31, 2009
Scheduled Annual Maturities of Long-Term Debt [Abstract]
2016		$250,700
2017		1,901,200
2018		26,700
2019		27,300
2020		2,300
Thereafter		0
Total		2,208,200
Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount		2,100,000	2,325,000			4,500,000
Maturity date		30-Jun-11
Extended maturity date		1-Jul-16
Interest rate variable rate basis					LIBOR
Interest rate spread on variable rate basis (in hundredths)	2.00%
Weighted average interest rate (in hundredths)		2.19%	2.18%	2.21%
Interest expense		48,400	54,500	55,600
Baltimore County Economic Development Revolving Loan Fund [Member]
Debt Instrument [Line Items]
Principal amount		108,200	133,400				250,000
Maturity date		1-Apr-19
Principal and interest payments		2,300
Interest expense		$2,400	$2,900	$3,400
Interest rate (in hundredths)							2.00%

Commitments_and_Contingencies_1

Commitments and Contingencies (Details) (USD $)	12 Months Ended
	Mar. 29, 2015	Mar. 30, 2014	Mar. 31, 2013
Operating Leased Assets [Line Items]
Rent expense	$2,970,300	$3,004,300	$2,907,900
Minimum Future Obligations [Abstract]
2016	3,032,100
2017	2,983,100
2018	2,020,500
2019	143,600
2020	11,100
Thereafter	0
Total	8,190,400
New York [Member]
Minimum Future Obligations [Abstract]
Income tax examination period	June 2012 through February 2015
Florida [Member]
Minimum Future Obligations [Abstract]
Income tax examination period	November 2011 through October 2014
Maryland [Member]
Minimum Future Obligations [Abstract]
Income tax examination period	January 2011 through December 2014
Timonium, Maryland [Member] | Minimum [Member]
Operating Leased Assets [Line Items]
Base rental rate per month	162,600
Timonium, Maryland [Member] | Maximum [Member]
Operating Leased Assets [Line Items]
Base rental rate per month	177,700
Hunt Valley, Maryland [Member] | Minimum [Member]
Operating Leased Assets [Line Items]
Base rental rate per month	33,000
Hunt Valley, Maryland [Member] | Maximum [Member]
Operating Leased Assets [Line Items]
Base rental rate per month	35,700
San Antonio, Texas [Member] | Minimum [Member]
Operating Leased Assets [Line Items]
Base rental rate per month	15,300
San Antonio, Texas [Member] | Maximum [Member]
Operating Leased Assets [Line Items]
Base rental rate per month	$16,900

Operating_Segments_Details

Operating Segments (Details) (USD $)	3 Months Ended								12 Months Ended
	Mar. 29, 2015	Dec. 28, 2014	Sep. 28, 2014	Jun. 29, 2014	Mar. 30, 2014	Dec. 29, 2013	Sep. 29, 2013	Jun. 30, 2013	Mar. 29, 2015	Mar. 30, 2014	Mar. 31, 2013
									Segment
									Category
Operating Segments [Abstract]
Number of reportable segments									1
Number of product categories									4
Market Reporting Information [Line Items]
Revenues									$549,619,000	$560,086,600	$752,565,000
Gross profit	27,690,800	32,512,900	35,436,000	35,248,800	30,084,800	36,142,400	36,492,800	35,437,900	130,888,500	138,157,900	147,039,200
Selling, general, administrative, and interest expenses									116,104,000	111,846,000	118,045,000
Restructuring charge	573,400	0	0	0	0	0	0	0	573,400	0	0
Operating and interest expenses									116,677,000	111,846,000	118,045,000
Income before provision for income taxes	-272,900	2,622,800	5,817,200	6,044,000	4,750,800	7,129,800	7,522,400	6,909,200	14,211,100	26,312,200	28,994,400
Reporting Units [Member] | Public Carriers, Contractors & Program Managers [Member]
Market Reporting Information [Line Items]
Revenues									127,426,000	149,196,000	111,146,000
Gross profit									24,081,000	31,013,000	24,183,000
Reporting Units [Member] | Government System Operators [Member]
Market Reporting Information [Line Items]
Revenues									31,495,000	33,757,000	35,857,000
Gross profit									8,283,000	8,497,000	9,231,000
Reporting Units [Member] | Private System Operators [Member]
Market Reporting Information [Line Items]
Revenues									86,725,000	81,559,000	85,456,000
Gross profit									22,926,000	23,110,000	24,365,000
Reporting Units [Member] | Commercial Dealers & Resellers [Member]
Market Reporting Information [Line Items]
Revenues									134,195,000	140,552,000	138,737,000
Gross profit									37,977,000	39,396,000	38,345,000
Reporting Units [Member] | Retailer, Independent Dealer Agents & Carriers [Member]
Market Reporting Information [Line Items]
Revenues									169,778,000	155,023,000	167,895,000
Gross profit									37,622,000	36,142,000	35,903,000
Reporting Units [Member] | Revenue, excluding Major 3PL relationship [Member]
Market Reporting Information [Line Items]
Revenues									549,619,000	560,087,000	539,091,000
Gross profit									130,889,000	138,158,000	132,027,000
Reporting Units [Member] | Major 3PL relationship [Member]
Market Reporting Information [Line Items]
Revenues									0	0	213,474,000
Gross profit									$0	$0	$15,012,000

Operating_Segments_Revenue_Inf

Operating Segments, Revenue Information by Product (Details) (USD $)	3 Months Ended								12 Months Ended
	Mar. 29, 2015	Dec. 28, 2014	Sep. 28, 2014	Jun. 29, 2014	Mar. 30, 2014	Dec. 29, 2013	Sep. 29, 2013	Jun. 30, 2013	Mar. 29, 2015	Mar. 30, 2014	Mar. 31, 2013
Revenue and Gross Profit from External Customer [Line Items]
Revenue from external customers									$549,619,000	$560,086,600	$752,565,000
Gross profit	27,690,800	32,512,900	35,436,000	35,248,800	30,084,800	36,142,400	36,492,800	35,437,900	130,888,500	138,157,900	147,039,200
Base Station Infrastructure [Member]
Revenue and Gross Profit from External Customer [Line Items]
Revenue from external customers									224,135,000	252,983,000	227,510,000
Gross profit									60,960,000	69,451,000	65,472,000
Network Systems [Member]
Revenue and Gross Profit from External Customer [Line Items]
Revenue from external customers									96,399,000	89,411,000	78,989,000
Gross profit									16,064,000	16,040,000	14,887,000
Installation, Test and Maintenance [Member]
Revenue and Gross Profit from External Customer [Line Items]
Revenue from external customers									41,790,000	45,343,000	47,766,000
Gross profit									9,400,000	10,286,000	11,151,000
Mobile Device Accessories [Member]
Revenue and Gross Profit from External Customer [Line Items]
Revenue from external customers									187,295,000	172,350,000	398,300,000
Gross profit									$44,465,000	$42,381,000	$55,529,000

Restructuring_Charge_Details

Restructuring Charge (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 29, 2015
Restructuring Charge [Abstract]
Restructuring charge, pre-tax	$0.60

Stock_Buyback_Details

Stock Buyback (Details) (USD $)	0 Months Ended	12 Months Ended
	Apr. 23, 2014	Mar. 29, 2015	Mar. 30, 2014	Mar. 31, 2013	Apr. 23, 2014
Equity, Class of Treasury Stock [Line Items]
Number of shares repurchased under stock buy back program (in shares)		157,954
Shares repurchased		$4,600,000
Average cost per share (in dollars per share)		$29.17
Amount available for repurchase		5,400,000
Stock authorized to purchase on non-accelerated basis					10,000,000
Stock repurhase period	24 months
Tax withholding for share based compensation		$1,612,900	$1,646,300	$2,161,900

Income_Taxes_Details

Income Taxes (Details) (USD $)	3 Months Ended								12 Months Ended
	Mar. 29, 2015	Dec. 28, 2014	Sep. 28, 2014	Jun. 29, 2014	Mar. 30, 2014	Dec. 29, 2013	Sep. 29, 2013	Jun. 30, 2013	Mar. 29, 2015	Mar. 30, 2014	Mar. 31, 2013
Effective Income Tax Rate Reconciliation [Abstract]
Statutory federal rate (in hundredths)									34.20%	35.00%	35.00%
State taxes, net of federal benefit (in hundredths)									4.10%	3.30%	2.90%
Non-deductible expenses (in hundredths)									0.90%	0.70%	0.50%
Other (in hundredths)									0.00%	-0.80%	0.20%
Effective rate (in hundredths)									39.20%	38.20%	38.60%
Federal [Abstract]
Current									$3,035,400	$9,252,700	$10,593,200
Deferred									1,964,800	-396,600	-929,600
State [Abstract]
Current									398,500	1,212,400	1,640,400
Deferred									178,100	-5,400	-103,500
Provision for income taxes	-41,000	941,600	2,303,600	2,372,600	1,795,500	2,709,300	2,941,300	2,617,000	5,576,800	10,063,100	11,200,500
Deferred tax assets [Abstract]
Deferred compensation	802,700				1,260,000				802,700	1,260,000
Accrued vacation	554,100				428,700				554,100	428,700
Deferred rent	687,500				886,800				687,500	886,800
Allowance for doubtful accounts	232,800				374,300				232,800	374,300
Inventory reserves	2,175,500				1,530,000				2,175,500	1,530,000
Sales tax reserves	459,600				472,700				459,600	472,700
Other assets	516,000				1,660,600				516,000	1,660,600
Restricted Stock	89,600				0				89,600	0
Tax contingency reserve	286,200				299,900				286,200	299,900
Total deferred tax assets	5,804,000				6,913,000				5,804,000	6,913,000
Deferred tax liabilities [Abstract]
Depreciation and amortization	3,354,600				3,549,700				3,354,600	3,549,700
Other liabilities	312,400				287,300				312,400	287,300
Accrued compensation	873,700				0				873,700	0
Prepaid expenses	767,400				423,700				767,400	423,700
Total deferred tax liabilities	5,308,100				4,260,700				5,308,100	4,260,700
Deferred tax asset, net	495,900				2,652,300				495,900	2,652,300
Gross amount of unrecognized tax benefits	394,400				1,665,000				394,400	1,665,000
Net of indirect tax benefits	256,400				309,400				256,400	309,400
Unrecognized tax benefits that would impact effective tax rate	580,200								580,200
Amount of interest and penalties									-31,600	-23,300	71,300
Unrecognized tax benefits liability	323,800				295,500				323,800	295,500
Reconciliation of unrecognized tax benefits [Rollforward]
Beginning balance of unrecognized tax benefit				1,665,000				631,100	1,665,000	631,100	561,600
Decrease due to reclassification to income tax payable									-1,189,000	0	0
Increase related to prior period tax positions									0	1,189,000	0
Increases related to current period tax positions									10,600	22,800	69,500
Reductions as a result of a lapse in the applicable statute of limitations									-92,200	-177,900	0
Ending balance of unrecognized tax benefits	$394,400				$1,665,000				$394,400	$1,665,000	$631,100
Tax Year 2009 [Member]
Income Tax Examination [Line Items]
Open tax year									2009
Tax Year 2015 [Member]
Income Tax Examination [Line Items]
Open tax year									2015

Retirement_Plans_Details

Retirement Plans (Details) (USD $)	12 Months Ended
	Mar. 29, 2015	Mar. 30, 2014	Mar. 31, 2013
Retirement Plans [Abstract]
Defined contribution plan expense	$524,200	$718,700	$610,700
Common stock shares included in plan assets (in shares)	127,693
Cash surrender value of life insurance policy	1,769,600	1,491,300
Net present value of benefit obligation	$941,300	$822,200

Earnings_Per_Share_Details

Earnings Per Share (Details) (USD $)	3 Months Ended								12 Months Ended
Share data in Thousands, except Per Share data, unless otherwise specified	Mar. 29, 2015	Dec. 28, 2014	Sep. 28, 2014	Jun. 29, 2014	Mar. 30, 2014	Dec. 29, 2013	Sep. 29, 2013	Jun. 30, 2013	Mar. 29, 2015	Mar. 30, 2014	Mar. 31, 2013
Earnings per share - Basic [Abstract]
Net earnings	($231,900)	$1,681,200	$3,513,600	$3,671,400	$2,955,300	$4,420,500	$4,581,100	$4,292,200	$8,634,300	$16,249,100	$17,793,900
Less: Distributed and undistributed earnings allocated to nonvested stock									-47,000	-134,000	-200,000
Earnings available to common shareholders - Basic									8,587,000	16,115,000	17,594,000
Weighted average common shares outstanding - Basic (in shares)									8,171	8,134	7,929
Earnings per common share - Basic (in dollars per share)									$1.05	$1.98	$2.22
Earnings per share - Diluted [Abstract]
Net earnings	-231,900	1,681,200	3,513,600	3,671,400	2,955,300	4,420,500	4,581,100	4,292,200	8,634,300	16,249,100	17,793,900
Less: Distributed and undistributed earnings allocated to nonvested stock									-19,000	-132,000	-197,000
Earnings available to common shareholders - Diluted									$8,615,000	$16,117,000	$17,597,000
Weighted average common shares outstanding - Basic (in shares)									8,171	8,134	7,929
Effect of dilutive options (in shares)									102	192	271
Weighted average common shares outstanding - Diluted (in shares)									8,273	8,326	8,200
Earnings per common share - Diluted (in dollars per share)	($0.03)	$0.20	$0.42	$0.44	$0.35	$0.53	$0.55	$0.51	$1.04	$1.94	$2.15
Performance Stock Units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from computation of EPS (in shares)									0	0	0
Restricted Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from computation of EPS (in shares)									0	0	0

StockBased_Compensation_Detail

Stock-Based Compensation (Details) (USD $)	1 Months Ended	12 Months Ended			0 Months Ended					12 Months Ended
	Apr. 30, 2014	Mar. 29, 2015	Mar. 30, 2014	Mar. 31, 2013	11-May-15	3-May-12	14-May-13	8-May-14	Jul. 21, 2011	Apr. 01, 2007	Mar. 26, 2000
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum calculated estimated forfeiture rate (in hundredths)		2.00%
Performance Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Income tax benefit from share-based compensation		$441,300	$797,300	$979,800
Unrecognized compensation costs		300,000
Unrecognized compensation costs, period for recognition		1 year 7 months 6 days
Total fair value of shares vested during period		4,364,500	4,531,700	6,304,300
Annual vesting percentage (in hundredths)		25.00%
Nonvested PSU shares, Outstanding [Roll Forward]
Outstanding, non-vested beginning of period (in shares)		317,127	455,979	604,844
Granted (in shares)		91,000	112,000	156,200
Vested (in shares)		-125,347	-199,066	-288,765
Forfeited/cancelled (in shares)	-49,979	-78,939	-51,786	-16,300
Outstanding, non-vested end of period (in shares)		203,841	317,127	455,979
Nonvested PSU shares, Weighted-Average Grant Date Fair Value [Roll Forward]
Outstanding, non-vested beginning of period (in dollars per share)		$15.96	$12.77	$9.81
Granted (in dollars per share)		$29.28	$19.91	$19.31
Vested (in dollars per share)		$14.44	$10.22	$8.64
Forfeited/cancelled (in dollars per share)		$21.61	$18.47	$17.69
Outstanding, non-vested end of period (in dollars per share)		$20.65	$15.96	$12.77
Nonvested PSU shares, Expected to Vest - Fiscal Year Maturity [Abstract]
2015 (in shares)		87,107
2016 (in shares)		31,468
2017 (in shares)		10,766
Total shares earned but not yet vested (in shares)		129,341
Share released and vested (in shares)		125,347	199,066	288,765
Performance Stock Units [Member] | Subsequent Event [Member]
Nonvested PSU shares, Outstanding [Roll Forward]
Forfeited/cancelled (in shares)					-74,500
Restricted Stock [Member] | Non-Employee Director [Member] | Subsequent Event [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares of common stock granted (in shares)					10,000
Restricted Stock [Member] | Non-Employee Director [Member] | Award Date May 3, 2012 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation costs		100,000
Unrecognized compensation costs, period for recognition		1 year
Annual vesting percentage (in hundredths)						25.00%
Nonvested PSU shares, Expected to Vest - Fiscal Year Maturity [Abstract]
Shares of common stock granted (in shares)						20,100
Restricted Stock [Member] | Non-Employee Director [Member] | Award Date May 14, 2013 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation costs		100,000
Unrecognized compensation costs, period for recognition		2 years
Annual vesting percentage (in hundredths)							25.00%
Nonvested PSU shares, Expected to Vest - Fiscal Year Maturity [Abstract]
Shares of common stock granted (in shares)							15,000
Number of individuals not receiving RSU awards							1
Restricted Stock [Member] | Non-Employee Director [Member] | Award Date May 8, 2014 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation costs		200,000
Unrecognized compensation costs, period for recognition		3 years
Annual vesting percentage (in hundredths)								25.00%
Nonvested PSU shares, Expected to Vest - Fiscal Year Maturity [Abstract]
Shares of common stock granted (in shares)								10,000
Restricted Stock [Member] | Non-Employee Director [Member] | Award Date May 11, 2015 [Member] | Subsequent Event [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Annual vesting percentage (in hundredths)					25.00%
Nonvested PSU shares, Expected to Vest - Fiscal Year Maturity [Abstract]
Shares of common stock granted (in shares)					10,000
Second Amended and Restated 1994 Stock and Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of additional shares authorized (in shares)									690,000
Number of shares available for grant before amendment (in shares)									2,638,125
Number of shares available for grant (in shares)		439,028							3,553,125
Second Amended and Restated 1994 Stock and Incentive Plan [Member] | Subsequent Event [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant (in shares)					400,528
Second Amended and Restated 1994 Stock and Incentive Plan [Member] | Performance Stock Units [Member]
Nonvested PSU shares, Outstanding [Roll Forward]
Forfeited/cancelled (in shares)		-28,960
Second Amended and Restated 1994 Stock and Incentive Plan [Member] | Performance Stock Units [Member] | Subsequent Event [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares of common stock granted (in shares)					103,000
Measurement period					1 year
Second Amended and Restated 1994 Stock and Incentive Plan [Member] | Restricted Stock [Member] | Chief Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation costs		200,000
Unrecognized compensation costs, period for recognition		1 year
Nonvested PSU shares, Outstanding [Roll Forward]
Vested (in shares)		-22,500	-22,500
Outstanding, non-vested end of period (in shares)		22,500
Nonvested PSU shares, Expected to Vest - Fiscal Year Maturity [Abstract]
Shares of common stock granted (in shares)										225,000
Vesting period										10 years
Weighted-average grant date fair value (in dollars per share)										$10.56
Share released and vested (in shares)		22,500	22,500
Team Member Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-cash stock-based compensation		67,300	68,400	59,400
Number of shares authorized (in shares)											450,000
Purchase price of common stock (in hundredths)											85.00%
Nonvested PSU shares, Expected to Vest - Fiscal Year Maturity [Abstract]
Shares sold to employees (in shares)		8,547	9,604	11,009
Weighted-average market value (in dollars per share)		$22.93	$22.21	$15.80
Selling, General and Administrative Expenses [Member] | Performance Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-cash stock-based compensation		$1,161,300	$2,087,100	$2,536,800

Fair_Value_Disclosure_Details

Fair Value Disclosure (Details) (USD $)	Mar. 29, 2015	Mar. 30, 2014
Carrying Amount [Member] | Note Payable to a Bank [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	$2,100,000	$2,325,000
Carrying Amount [Member] | Note Payable to Baltimore County [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	108,200	133,400
Fair Value [Member] | Note Payable to a Bank [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	2,031,400	2,200,500
Fair Value [Member] | Note Payable to Baltimore County [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	$102,300	$124,400

Supplemental_Cash_Flow_Informa1

Supplemental Cash Flow Information (Details) (USD $)	12 Months Ended
	Mar. 29, 2015	Mar. 30, 2014	Mar. 31, 2013
Supplemental Cash Flow Information [Abstract]
Cash paid for income taxes, net of refunds	$4,914,000	$8,355,900	$11,847,300
Cash paid for interest	174,600	198,400	208,300
Interest capitalized	$3,400	$0	$0

Concentration_of_Risk_Details

Concentration of Risk (Details) (Revenues [Member])	12 Months Ended
	Mar. 29, 2015	Mar. 30, 2014	Mar. 31, 2013
	Customer
Concentration Risk [Line Items]
Maximum amount of revenue from top ten vendors (in hundredths)	41.00%	43.00%	42.00%
Maximum amount of revenue from the top ten customers (in hundredths)	20.00%	19.00%	39.00%
Maximum amount of revenue per single customer (in hundredths)	7.00%	7.00%
Number of customers who account for concentration risk	0
Customer Concentration Risk - AT&T Mobility Inc. [Member]
Concentration Risk [Line Items]
Concentration risk percentage (in hundredths)			30.00%
Supplier Concentration Risk - Otter Products LLC [Member]
Concentration Risk [Line Items]
Concentration risk percentage (in hundredths)			9.00%
Supplier Concentration Risk - CommScope Incorporated [Member]
Concentration Risk [Line Items]
Concentration risk percentage (in hundredths)	14.00%	16.00%

Quarterly_Results_of_Operation2

Quarterly Results of Operations (Unaudited) (Details) (USD $)	3 Months Ended								12 Months Ended
	Mar. 29, 2015	Dec. 28, 2014	Sep. 28, 2014	Jun. 29, 2014	Mar. 30, 2014	Dec. 29, 2013	Sep. 29, 2013	Jun. 30, 2013	Mar. 29, 2015	Mar. 30, 2014	Mar. 31, 2013
Summarized quarterly financial data [Abstract]
Revenues	$112,962,200	$135,188,700	$148,521,800	$152,946,300	$124,536,600	$144,915,200	$146,526,000	$144,108,800
Cost of goods sold	85,271,400	102,675,800	113,085,800	117,697,500	94,451,800	108,772,800	110,033,200	108,670,900
Gross profit	27,690,800	32,512,900	35,436,000	35,248,800	30,084,800	36,142,400	36,492,800	35,437,900	130,888,500	138,157,900	147,039,200
Selling, general and administrative expenses	27,362,100	29,828,800	29,569,400	29,176,400	25,315,700	28,974,800	28,903,400	28,474,100	115,936,700	111,668,000	117,820,600
Restructuring charges	573,400	0	0	0	0	0	0	0	573,400	0	0
Operating expenses	27,935,500	29,828,800	29,569,400	29,176,400	25,315,700	28,974,800	28,903,400	28,474,100
Income from operations	-244,700	2,684,100	5,866,600	6,072,400	4,769,100	7,167,600	7,589,400	6,963,800	14,378,400	26,489,900	29,218,600
Interest, net	28,200	61,300	49,400	28,400	18,300	37,800	67,000	54,600
Income before provision for income taxes	-272,900	2,622,800	5,817,200	6,044,000	4,750,800	7,129,800	7,522,400	6,909,200	14,211,100	26,312,200	28,994,400
Provision for income taxes	-41,000	941,600	2,303,600	2,372,600	1,795,500	2,709,300	2,941,300	2,617,000	5,576,800	10,063,100	11,200,500
Net income	($231,900)	$1,681,200	$3,513,600	$3,671,400	$2,955,300	$4,420,500	$4,581,100	$4,292,200	$8,634,300	$16,249,100	$17,793,900
Diluted (loss) earnings per share (in dollars per share)	($0.03)	$0.20	$0.42	$0.44	$0.35	$0.53	$0.55	$0.51	$1.04	$1.94	$2.15
Cash dividends declared per common share (in dollars per share)	$0.20	$0.20	$0.20	$0.20	$0.20	$0.18	$0.18	$0.18	$0.80	$0.74	$1.47

Subsequent_Events_Details

Subsequent Events (Details) (USD $)	12 Months Ended			0 Months Ended
	Mar. 29, 2015	Mar. 30, 2014	Mar. 31, 2013	26-May-15	Aug. 28, 2015
				Installment
Performance Stock Units [Member]
Subsequent Event [Line Items]
Vested (in shares)	-125,347	-199,066	-288,765
Subsequent Event [Member] | Tofighi [Member]
Subsequent Event [Line Items]
Severance cost				$345,000
Severance payments, description				The parties have agreed that Mr. Tofighi will receive a severance payment equal to 1.00 times his current base salary ($345,000) to be paid in two equal installments.
Number of installment, severance cost paid				2
Severance first installment date				28-Aug-15
Severance second installment date				1-Apr-16
Termination of employment				28-Aug-15
Subsequent Event [Member] | Tofighi [Member] | Performance Stock Units [Member]
Subsequent Event [Line Items]
Vested (in shares)					-5,768

Schedule_II_Valuation_and_Qual1

Schedule II - Valuation and Qualifying Accounts (Details) (USD $)	12 Months Ended
	Mar. 29, 2015	Mar. 30, 2014	Mar. 31, 2013
Allowance for Doubtful Accounts [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance, beginning of period	$1,080,300	$1,274,700	$998,800
Provision for bad debts	943,300	202,000	1,197,300
Write-offs and other adjustments	-1,361,700	-396,400	-921,400
Balance, end of period	661,900	1,080,300	1,274,700
Inventory Reserve [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance, beginning of period	4,086,100	3,336,700	3,268,900
Inventory reserve expense	2,098,800	1,428,100	2,581,200
Write-offs and other adjustments	-404,300	-678,700	-2,513,400
Balance, end of period	$5,780,600	$4,086,100	$3,336,700