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Investments (Details 1) - USD ($) $ in Thousands | Sep. 30, 2017 | Apr. 01, 2017
--- | --- | ---
Available-for-Sale Securities by Investment Category |  |
Amortized Cost - Available-for sale Debt Securities | $ 15,146 |
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax | 3,522 | $ 2,582
Available-for-sale Securities, Amortized Cost Basis | 24,509 | 21,941
Total Amortized Cost - Available-for-sale Securities | 24,509 | 21,941
Gross Unrealized Losses | (318) | (361)
Total Fair Value - Available-for-sale Debt Securities | 15,086 |
Total Fair Value - Available-for-sale Securities | 27,713 | 24,162
Equity Method Investments | 18,543 | 17,383
U.S. Treasury and Government Agencies [Member] |  |
Available-for-Sale Securities by Investment Category |  |
Amortized Cost - Available-for sale Debt Securities | 650 | 650
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax | 0 | 0
Gross Unrealized Losses | (2) | (1)
Total Fair Value - Available-for-sale Debt Securities | 648 | 649
Mortgage-backed securities [Member] |  |
Available-for-Sale Securities by Investment Category |  |
Amortized Cost - Available-for sale Debt Securities | 6,549 | 5,646
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax | 2 | 3
Gross Unrealized Losses | (95) | (90)
Total Fair Value - Available-for-sale Debt Securities | 6,456 | 5,559
States and political subdivisions [Member] |  |
Available-for-Sale Securities by Investment Category |  |
Amortized Cost - Available-for sale Debt Securities | 6,257 | 7,195
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax | 168 | 145
Gross Unrealized Losses | (124) | (117)
Total Fair Value - Available-for-sale Debt Securities | 6,301 | 7,223
Corporate debt securities [Member] |  |
Available-for-Sale Securities by Investment Category |  |
Amortized Cost - Available-for sale Debt Securities | 1,690 | 1,698
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax | 4 | 4
Gross Unrealized Losses | (13) | (23)
Total Fair Value - Available-for-sale Debt Securities | 1,681 | 1,679
Marketable equity securities [Member] |  |
Available-for-Sale Securities by Investment Category |  |
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax | 3,348 | 2,430
Amortized Cost - Available-for-sale Equity Securities | 6,601 | 5,752
Gross Unrealized Losses | (84) | (130)
Total Fair Value - Available-for-sale Equity Securities | 9,865 | 8,052
Certificates of Deposit [Member] |  |
Available-for-Sale Securities by Investment Category |  |
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax | 0 | 0
Available-for-sale Securities, Amortized Cost Basis | 2,762 | 1,000
Total Amortized Cost - Available-for-sale Securities | 2,762 | 1,000
Gross Unrealized Losses | 0 | 0
Total Fair Value - Available-for-sale Securities | $ 2,762 | $ 1,000

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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 Reference 1: 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=82897076&loc=d3e27161-111563 Reference 2: 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 before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale. + 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=82897076&loc=d3e27161-111563 + Details
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