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Investments (Details 1) (USD $) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 28, 2014 | Mar. 29, 2014
Available-for-Sale Securities by Investment Category |  |
Total Amortized Cost - Available-for-sale Securities | $ 19,210,000 | $ 19,132,000
Gross Unrealized Gains | 1,100,000 | 951,000
Gross Unrealized Losses | (169,000) | (281,000)
Total Fair Value - Available-for-sale Debt Securities | 14,385,000 | 13,530,000
Total Fair Value - Available-for-sale Securities | 20,141,000 | 19,802,000
U.S. Treasury and Government Agencies [Member] |  |
Available-for-Sale Securities by Investment Category |  |
Amortized Cost - Available-for sale Debt Securities | 2,163,000 | 2,318,000
Gross Unrealized Gains | 1,000 | 1,000
Gross Unrealized Losses | (21,000) | (46,000)
Total Fair Value - Available-for-sale Debt Securities | 2,143,000 | 2,273,000
Mortgage-backed securities [Member] |  |
Available-for-Sale Securities by Investment Category |  |
Amortized Cost - Available-for sale Debt Securities | 3,065,000 | 3,754,000
Gross Unrealized Gains | 14,000 | 13,000
Gross Unrealized Losses | (75,000) | (149,000)
Total Fair Value - Available-for-sale Debt Securities | 3,004,000 | 3,618,000
States and political subdivisions [Member] |  |
Available-for-Sale Securities by Investment Category |  |
Amortized Cost - Available-for sale Debt Securities | 6,143,000 | 5,923,000
Gross Unrealized Gains | 224,000 | 155,000
Gross Unrealized Losses | (11,000) | (13,000)
Total Fair Value - Available-for-sale Debt Securities | 6,356,000 | 6,065,000
Corporate debt securities [Member] |  |
Available-for-Sale Securities by Investment Category |  |
Amortized Cost - Available-for sale Debt Securities | 2,866,000 | 1,550,000
Gross Unrealized Gains | 17,000 | 24,000
Gross Unrealized Losses | (1,000) | 0
Total Fair Value - Available-for-sale Debt Securities | 2,882,000 | 1,574,000
Marketable equity securities [Member] |  |
Available-for-Sale Securities by Investment Category |  |
Amortized Cost - Available-for-sale Equity Securities | 3,923,000 | 4,537,000
Gross Unrealized Gains | 844,000 | 758,000
Gross Unrealized Losses | (61,000) | (73,000)
Total Fair Value - Available-for-sale Equity Securities | 4,706,000 | 5,222,000
Certificates of Deposit [Member] |  |
Available-for-Sale Securities by Investment Category |  |
Total Amortized Cost - Available-for-sale Securities | 1,050,000 | 1,050,000
Gross Unrealized Gains | 0 | 0
Gross Unrealized Losses | 0 | 0
Total Fair Value - Available-for-sale Securities | $ 1,050,000 | $ 1,050,000

X
- 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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