Note 4 - Consolidating Financial Information (Details) - Consolidated Balance Sheet (USD $) | Mar. 31, 2014 | Dec. 31, 2013 | Mar. 31, 2013 | Dec. 31, 2012 |
Rental property: | ' | ' | ' | ' |
Land | $4,621,293 | $4,621,293 | ' | ' |
Building and improvements | 32,864,821 | 32,626,185 | ' | ' |
Machinery and equipment | 344,733 | 344,733 | ' | ' |
| 37,830,847 | 37,592,211 | ' | ' |
Less accumulated depreciation | 7,475,739 | 7,234,846 | ' | ' |
| 30355108.00% | ' | ' | ' |
Land held for development: | ' | ' | ' | ' |
Land | 558,466 | 558,466 | ' | ' |
Land development costs | 1,862,048 | 1,823,847 | ' | ' |
| 2,420,514 | 2,382,313 | ' | ' |
Total real estate, net | 32,775,622 | 32,739,678 | ' | ' |
Cash and cash equivalents | 8,481,571 | 13,048,827 | 88,864,560 | 94,164,722 |
Investment in marketable securities | 3,301,875 | 3,380,864 | ' | ' |
Rent receivable, net of allowance for doubtful accounts of approximately $76,000 | 205,547 | 95,829 | ' | ' |
Deferred rent receivable | 216,123 | 215,709 | ' | ' |
Prepaid expenses and other assets | 838,236 | 892,074 | ' | ' |
Prepaid pension costs | 601,338 | 608,807 | ' | ' |
Total Assets | 46,420,312 | 50,981,788 | ' | ' |
LIABILITIES: | ' | ' | ' | ' |
Accounts payable | 630,277 | 1,710,257 | ' | ' |
Accrued liabilities | 392,998 | 3,246,403 | ' | ' |
Deferred rent liability | 101,225 | 93,922 | ' | ' |
Tenant security deposits payable | 480,392 | 474,111 | ' | ' |
Deferred income taxes | 1,315,000 | 1,315,000 | ' | ' |
Dividend note payable | 16,144,614 | 16,144,614 | ' | ' |
Total Liabilities | 19,064,506 | 22,984,307 | ' | ' |
EQUITY: | ' | ' | ' | ' |
Common stock, $1 par value; authorized 4,000,000 shares; 1,723,888 shares issued; 1,482,680 shares outstanding | 1,723,888 | 1,723,888 | ' | ' |
Additional paid-in capital | 17,753,505 | 17,753,505 | ' | ' |
Accumulated other comprehensive loss | 148,772 | 118,789 | ' | ' |
Deficit retained earnings | -9,107,399 | -9,119,471 | ' | ' |
| 10,518,766 | 10,476,711 | ' | ' |
Less cost of shares of common stock held in treasury; 241,208 | -1,537,697 | -1,537,697 | ' | ' |
Total Gyrodyne Stockholdersb Equity | 8,981,069 | 8,939,014 | ' | ' |
Non-controlling interest in GSD, LLC | 18,374,737 | 19,058,467 | ' | ' |
Total equity | 27,355,806 | 27,997,481 | ' | ' |
Total Liabilities and Equity | 46,420,312 | 50,981,788 | ' | ' |
Consolidation, Eliminations [Member] | ' | ' | ' | ' |
Land held for development: | ' | ' | ' | ' |
GSD Line of Credit | -1,049,963 | ' | ' | ' |
Mortgage receivable | -13,606,486 | ' | ' | ' |
Total Assets | -14,656,449 | ' | ' | ' |
LIABILITIES: | ' | ' | ' | ' |
GSD Line of Credit | -1,049,963 | ' | ' | ' |
Mortgage Payable | -13,606,486 | ' | ' | ' |
Total Liabilities | -14,656,449 | ' | ' | ' |
EQUITY: | ' | ' | ' | ' |
Deficit retained earnings | 691,731 | ' | ' | ' |
| 691,731 | ' | ' | ' |
Total Gyrodyne Stockholdersb Equity | 691,731 | ' | ' | ' |
Non-controlling interest in GSD, LLC | -691,731 | ' | ' | ' |
Total Liabilities and Equity | -14,656,449 | ' | ' | ' |
Parent Company [Member] | ' | ' | ' | ' |
Land held for development: | ' | ' | ' | ' |
Cash and cash equivalents | 8,481,571 | ' | ' | ' |
Investment in marketable securities | 3,301,875 | ' | ' | ' |
GSD Line of Credit | 1,049,963 | ' | ' | ' |
Prepaid expenses and other assets | 114,624 | ' | ' | ' |
Prepaid pension costs | 601,338 | ' | ' | ' |
Mortgage receivable | 13,606,486 | ' | ' | ' |
Total Assets | 27,155,857 | ' | ' | ' |
LIABILITIES: | ' | ' | ' | ' |
Accounts payable | 354,517 | ' | ' | ' |
Accrued liabilities | 360,657 | ' | ' | ' |
Deferred income taxes | 1,315,000 | ' | ' | ' |
Dividend note payable | 16,144,614 | ' | ' | ' |
Total Liabilities | 18,174,788 | ' | ' | ' |
EQUITY: | ' | ' | ' | ' |
Common stock, $1 par value; authorized 4,000,000 shares; 1,723,888 shares issued; 1,482,680 shares outstanding | 1,723,888 | ' | ' | ' |
Additional paid-in capital | 17,753,505 | ' | ' | ' |
Accumulated other comprehensive loss | 148,772 | ' | ' | ' |
Deficit retained earnings | -9,107,399 | ' | ' | ' |
| 10,518,766 | ' | ' | ' |
Less cost of shares of common stock held in treasury; 241,208 | -1,537,697 | ' | ' | ' |
Total Gyrodyne Stockholdersb Equity | 8,981,069 | ' | ' | ' |
Total equity | 8,981,069 | ' | ' | ' |
Total Liabilities and Equity | 27,155,857 | ' | ' | ' |
GSD LLC [Member] | ' | ' | ' | ' |
Rental property: | ' | ' | ' | ' |
Land | 4,621,293 | ' | ' | ' |
Building and improvements | 32,864,821 | ' | ' | ' |
Machinery and equipment | 344,733 | ' | ' | ' |
| 37,830,847 | ' | ' | ' |
Less accumulated depreciation | 7,475,739 | ' | ' | ' |
| 30355108.00% | ' | ' | ' |
Land held for development: | ' | ' | ' | ' |
Land | 558,466 | ' | ' | ' |
Land development costs | 1,862,048 | ' | ' | ' |
| 2,420,514 | ' | ' | ' |
Total real estate, net | 32,775,622 | ' | ' | ' |
Rent receivable, net of allowance for doubtful accounts of approximately $76,000 | 205,547 | ' | ' | ' |
Deferred rent receivable | 216,123 | ' | ' | ' |
Prepaid expenses and other assets | 723,612 | ' | ' | ' |
Total Assets | 33,920,904 | ' | ' | ' |
LIABILITIES: | ' | ' | ' | ' |
Accounts payable | 275,760 | ' | ' | ' |
Accrued liabilities | 32,341 | ' | ' | ' |
Deferred rent liability | 101,225 | ' | ' | ' |
Tenant security deposits payable | 480,392 | ' | ' | ' |
GSD Line of Credit | 1,049,963 | ' | ' | ' |
Mortgage Payable | 13,606,486 | ' | ' | ' |
Total Liabilities | 15,546,167 | ' | ' | ' |
EQUITY: | ' | ' | ' | ' |
Deficit retained earnings | -691,731 | ' | ' | ' |
| -691,731 | ' | ' | ' |
Total Gyrodyne Stockholdersb Equity | -691,731 | ' | ' | ' |
Non-controlling interest in GSD, LLC | 19,066,468 | ' | ' | ' |
Total equity | 18,374,737 | ' | ' | ' |
Total Liabilities and Equity | 33,920,904 | ' | ' | ' |
Consolidated Entities [Member] | ' | ' | ' | ' |
Rental property: | ' | ' | ' | ' |
Land | 4,621,293 | ' | ' | ' |
Building and improvements | 32,864,821 | ' | ' | ' |
Machinery and equipment | 344,733 | ' | ' | ' |
| 37,830,847 | ' | ' | ' |
Less accumulated depreciation | 7,475,739 | ' | ' | ' |
| 30355108.00% | ' | ' | ' |
Land held for development: | ' | ' | ' | ' |
Land | 558,466 | ' | ' | ' |
Land development costs | 1,862,048 | ' | ' | ' |
| 2,420,514 | ' | ' | ' |
Total real estate, net | 32,775,622 | ' | ' | ' |
Cash and cash equivalents | 8,481,571 | ' | ' | ' |
Investment in marketable securities | 3,301,875 | ' | ' | ' |
Rent receivable, net of allowance for doubtful accounts of approximately $76,000 | 205,547 | ' | ' | ' |
Deferred rent receivable | 216,123 | ' | ' | ' |
GSD Line of Credit | 1,049,963 | ' | ' | ' |
Prepaid expenses and other assets | 838,236 | ' | ' | ' |
Prepaid pension costs | 601,338 | ' | ' | ' |
Mortgage receivable | 13,606,486 | ' | ' | ' |
Total Assets | 61,076,761 | ' | ' | ' |
LIABILITIES: | ' | ' | ' | ' |
Accounts payable | 630,277 | ' | ' | ' |
Accrued liabilities | 392,998 | ' | ' | ' |
Deferred rent liability | 101,225 | ' | ' | ' |
Tenant security deposits payable | 480,392 | ' | ' | ' |
GSD Line of Credit | 1,049,963 | ' | ' | ' |
Mortgage Payable | 13,606,486 | ' | ' | ' |
Deferred income taxes | 1,315,000 | ' | ' | ' |
Dividend note payable | 16,144,614 | ' | ' | ' |
Total Liabilities | 33,720,955 | ' | ' | ' |
EQUITY: | ' | ' | ' | ' |
Common stock, $1 par value; authorized 4,000,000 shares; 1,723,888 shares issued; 1,482,680 shares outstanding | 1,723,888 | ' | ' | ' |
Additional paid-in capital | 17,753,505 | ' | ' | ' |
Accumulated other comprehensive loss | 148,772 | ' | ' | ' |
Deficit retained earnings | -9,799,130 | ' | ' | ' |
| 9,827,035 | ' | ' | ' |
Less cost of shares of common stock held in treasury; 241,208 | -1,537,697 | ' | ' | ' |
Total Gyrodyne Stockholdersb Equity | 8,289,338 | ' | ' | ' |
Non-controlling interest in GSD, LLC | 19,066,468 | ' | ' | ' |
Total equity | 27,355,806 | ' | ' | ' |
Total Liabilities and Equity | $61,076,761 | ' | ' | ' |