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Investments Investments (Available-for-sale Summary) (Details) (USD $) | 12 Months Ended
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Mar. 29, 2014 | Mar. 30, 2013
Available-for-Sale Securities by Investment Category |  |
Total Amortized Cost - Available-for-sale Securities | $ 19,132,000 | $ 17,159,000
Gross Unrealized Gains | 951,000 | 721,000
Gross Unrealized Losses | (281,000) | (182,000)
Total Fair Value - Available-for-sale Debt Securities | 13,530,000 | 12,375,000
Available-for-sale Securities | 19,802,000 | 17,698,000
U.S. Treasury and Government Agencies [Member] |  |
Available-for-Sale Securities by Investment Category |  |
Amortized Cost - Available-for sale Debt Securities | 2,318,000 | 2,682,000
Gross Unrealized Gains | 1,000 | 11,000
Gross Unrealized Losses | (46,000) | (6,000)
Total Fair Value - Available-for-sale Debt Securities | 2,273,000 | 2,687,000
Mortgage-backed securities [Member] |  |
Available-for-Sale Securities by Investment Category |  |
Amortized Cost - Available-for sale Debt Securities | 3,754,000 | 5,226,000
Gross Unrealized Gains | 13,000 | 21,000
Gross Unrealized Losses | (149,000) | (108,000)
Total Fair Value - Available-for-sale Debt Securities | 3,618,000 | 5,139,000
States and political subdivisions [Member] |  |
Available-for-Sale Securities by Investment Category |  |
Amortized Cost - Available-for sale Debt Securities | 5,923,000 | 1,681,000
Gross Unrealized Gains | 155,000 | 32,000
Gross Unrealized Losses | (13,000) | 0
Total Fair Value - Available-for-sale Debt Securities | 6,065,000 | 1,713,000
Corporate debt securities [Member] |  |
Available-for-Sale Securities by Investment Category |  |
Amortized Cost - Available-for sale Debt Securities | 1,550,000 | 2,788,000
Gross Unrealized Gains | 24,000 | 48,000
Gross Unrealized Losses | 0 | 0
Total Fair Value - Available-for-sale Debt Securities | 1,574,000 | 2,836,000
Equity Securities [Member] |  |
Available-for-Sale Securities by Investment Category |  |
Amortized Cost - Available-for-sale Equity Securities | 4,537,000 | 4,782,000
Gross Unrealized Gains | 758,000 | 609,000
Gross Unrealized Losses | (73,000) | (68,000)
Available-for-sale Securities, Equity Securities | 5,222,000 | 5,323,000
Certificates of Deposit [Member] |  |
Available-for-Sale Securities by Investment Category |  |
Total Amortized Cost - Available-for-sale Securities | 1,050,000 |
Gross Unrealized Gains | 0 |
Gross Unrealized Losses | 0 |
Available-for-sale Securities | $ 1,050,000 |

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- Definition This item represents the cost of debt securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any. + References No definition available. + Details
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- Definition This item represents the cost of equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments for other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any. + References No definition available. + Details
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- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=28360136&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26610-111562 + Details
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- Definition This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.2) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of debt securities categorized neither as held-to-maturity nor trading. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=28360136&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26610-111562 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27161-111563 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 2 -Subparagraph (b)-(g) -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62557-112803 + Details
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- Definition Amount of equity securities categorized neither as held-to-maturity nor as trading. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=28360136&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26610-111562 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62557-112803 + Details
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- Definition Amount of unrealized gain before deducting unrealized loss on investments in debt and equity securities classified as available-for-sale securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27161-111563 + Details
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- Definition Amount of unrealized loss before deducting unrealized gain on investments in available-for-sale securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27161-111563 + Details
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