Note 11 - Marketable Securities (Details) - Marketable Securities (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Note 11 - Marketable Securities (Details) - Marketable Securities [Line Items]
Equity securities - Gross Unrealized Gains	$ 46,197	$ 25,995
Equity securities - Estimated Fair Value	87,659us-gaap_AvailableForSaleSecurities	59,723us-gaap_AvailableForSaleSecurities
Other debt securities - Gross Unrealized Gains	(200)	59
Other debt securities - Estimated Fair Value	2,376	3,102
Total marketable securities - Amortized Cost	90,235us-gaap_MarketableSecurities	62,766us-gaap_MarketableSecurities
Total marketable securities - Gross Unrealized Gains	45,997	26,054
Total marketable securities - Estimated Fair Value	90,035kim_MarketableSecuritiesFairValue	62,825kim_MarketableSecuritiesFairValue
Amortized Cost [Member]
Note 11 - Marketable Securities (Details) - Marketable Securities [Line Items]
Equity securities - Amortized Cost	41,462	33,728
Other debt securities - Amortized Cost	2,576	3,043
Total marketable securities - Amortized Cost	$ 44,038	$ 36,771

No authoritative reference available.

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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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Amount of unrealized gain before deducting unrealized loss on investments in debt and equity securities classified as available-for-sale securities.

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Amount before other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity.

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Total debt and equity financial instruments including: (1) securities held-to-maturity, (2) trading securities, and (3) securities available-for-sale.

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