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)	500,000us-gaap_PreferredStockSharesAuthorized	500,000us-gaap_PreferredStockSharesAuthorized
Preferred stock, issued (in shares)	0us-gaap_PreferredStockSharesIssued	0us-gaap_PreferredStockSharesIssued
Preferred stock, outstanding (in shares)	0us-gaap_PreferredStockSharesOutstanding	0us-gaap_PreferredStockSharesOutstanding
Common stock, par value (in dollars shares)	$ 0.01	$ 0.01
Common stock, authorized (in shares)	15,000,000us-gaap_CommonStockSharesAuthorized	15,000,000us-gaap_CommonStockSharesAuthorized
Common stock, issued (in shares)	13,817,239us-gaap_CommonStockSharesIssued	13,627,098us-gaap_CommonStockSharesIssued
Common stock, outstanding (in shares)	8,159,592us-gaap_CommonStockSharesOutstanding	8,180,484us-gaap_CommonStockSharesOutstanding
Treasury stock (in shares)	5,657,647us-gaap_TreasuryStockShares	5,446,614us-gaap_TreasuryStockShares

A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

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