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Note 6 - Vessels, Net (Tables) | 12 Months Ended
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Dec. 31, 2017
Notes Tables |
Property, Plant and Equipment [Table Text Block] |
|  | Vessel cost |  |  | Accumulated Depreciation |  |  | Net Book Value |
Balance, December 31, 2015 |  |  | 1,066,630,849 |  |  |  | (201,940,961 | ) |  |  | 864,689,888 |
Acquisitions (transfer from Advances for Vessels under Construction and Acquisitions) |  |  | 44,432,663 |  |  |  | — |  |  |  | 44,432,663 |
Disposals |  |  | (591,137 | ) |  |  | — |  |  |  | (591,137 | )
Impairment loss |  |  | (34,859,054 | ) |  |  | 29,123,968 |  |  |  | (5,735,086 | )
Depreciation for the year |  |  | — |  |  |  | (39,096,589 | ) |  |  | (39,096,589 | )
Balance, December 31, 2016 |  |  | 1,075,613,321 |  |  |  | (211,913,582 | ) |  |  | 863,699,739 |
Acquisitions (transfer from Advances for Vessels under Construction and Acquisitions) |  |  | 55,302,364 |  |  |  | — |  |  |  | 55,302,364 |
Impairment loss |  |  | (29,222,564 | ) |  |  | 22,761,291 |  |  |  | (6,461,273 | )
Disposal |  |  | (11,557,252 | ) |  |  | — |  |  |  | (11,557,252 | )
Depreciation for the year |  |  | — |  |  |  | (38,921,672 | ) |  |  | (38,921,672 | )
Balance, December 31, 2017 |  |  | 1,090,135,869 |  |  |  | (228,073,963 | ) |  |  | 862,061,906 |

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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
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