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General Information (Details Textual) |  | 9 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Aug. 09, 2017 USD ($) shares | Sep. 30, 2017 USD ($) vessel shares | Sep. 30, 2016 USD ($) | Nov. 09, 2017 shares | Jun. 29, 2017 USD ($) shares | Jun. 27, 2017 shares | Dec. 31, 2016 USD ($) shares
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |
Shares of common stock sold to institutional and accredited investors | shares |  | 43,795,182 |  |  |  |  | 36,590,417
Common Stock, Value, Issued | $ |  | $ 4,380 |  |  |  |  | $ 3,659
Stock issued during period, value, issurance of common stock as settlement of accrued dividends | $ |  | $ 4,385,000 | $ 0 |  |  |  |
Shares issued in connection with share offering, percentage, of then common stock |  |  |  |  |  | 17.00% |
Common Stock, Shares, Outstanding | shares |  | 43,795,182 |  |  |  |  | 36,590,417
Entity Common Stock, Shares Outstanding | shares |  |  |  | 43,795,182 |  |  |
Panamax Ice Class 1A [Member] |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |
Number of vessels | vessel |  | 6 |  |  |  |  |
Panamax [Member] |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |
Number of vessels | vessel |  | 2 |  |  |  |  |
Supramax [Member] |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |
Number of vessels | vessel |  | 5 |  |  |  |  |
Handymax Ice Class 1A [Member] |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |
Number of vessels | vessel |  | 2 |  |  |  |  |
Ultramax Ice Class 1C [Member] |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |
Number of vessels | vessel |  | 2 |  |  |  |  |
bareboat charter [Member] | Supramax [Member] |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |
Number of vessels | vessel |  | 2 |  |  |  |  |
Stock Purchase Agreement sold to institutional and accredited investors [Member] |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |
Consenting Shareholders | shares |  |  |  |  |  | 31,304,961 |
% of shareholders approval |  |  |  |  |  | 84.00% |
Shares of common stock sold to institutional and accredited investors | shares |  |  |  |  | 6,533,443 |  |
Common Stock, Value, Issued | $ |  |  |  |  | $ 14,100,000 |  |
Stock Purchase Agreement inside investors [Member] [Member] |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |
Shares of common stock sold to institutional and accredited investors | shares | 2,597,778 |  |  |  |  |  |
Common Stock, Value, Issued | $ | $ 5,800,000 |  |  |  |  |  |
Stock issued during period, value, issurance of common stock as settlement of accrued dividends | $ | $ 4,400,000 |  |  |  |  |  |

X
- Definition Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument. + References No definition available. + Details
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