XML 50 R24.htm IDEA: XBRL DOCUMENT v3.7.0.1
Debt (Details) - USD ($)
Dec. 11, 2015
Jun. 30, 2017
Dec. 31, 2016
Debt Instrument [Line Items]      
Secured long-term debt, gross   $ 138,070,280 $ 128,794,208
Less: current portion   (18,343,971) (19,627,846)
Less: unamortized debt issuance and bank fees   (2,036,668) (1,528,511)
Secured long-term debt   117,689,641 107,637,851
Bulk Nordic Six Ltd. Loan Agreement [Domain]      
Debt Instrument [Line Items]      
Secured long-term debt, gross   19,400,000 0
Bulk Freedom Loan Agreement [Member]      
Debt Instrument [Line Items]      
Secured long-term debt, gross   5,500,000 0
Bulk Pangaea Secured Note [Member]      
Debt Instrument [Line Items]      
Secured long-term debt, gross   0 1,040,625
Bulk Patriot Secured Note [Member]      
Debt Instrument [Line Items]      
Secured long-term debt, gross   0 1,087,500
Bulk Trident Secured Note [Member]      
Debt Instrument [Line Items]      
Secured long-term debt, gross   4,537,500 5,737,500
Bulk Juliana Secured Note [Member]      
Debt Instrument [Line Items]      
Secured long-term debt, gross   2,535,157 3,042,186
Bulk Nordic Odin, Bulk Nordic Olympic, Bulk Nordic Odyssey, Bulk Nordic Orion and Bulk Nordic Oshima Loan Agreement [Member] [Domain]      
Debt Instrument [Line Items]      
Secured long-term debt, gross   73,575,000 77,325,001
Bulk Atlantic Secured Note [Member]      
Debt Instrument [Line Items]      
Secured long-term debt, gross   0 5,350,000
Bulk Phoenix Secured Note [Member]      
Debt Instrument [Line Items]      
Secured long-term debt, gross   5,616,663 6,816,685
Nordic Bulk Barents Ltd. and Nordic Bulk Bothnia Ltd. [Member]      
Debt Instrument [Line Items]      
Secured long-term debt, gross   6,445,640 7,097,820
Bulk Nordic Oasis Ltd. Loan Agreement [Member]      
Debt Instrument [Line Items]      
Secured long-term debt, gross   19,250,000 20,000,000
Long Wharf Construction to Term Loan [Member]      
Debt Instrument [Line Items]      
Secured long-term debt, gross   977,267 1,032,067
mv Nordic Bulk Oasis [Member] | Primary Beneficiary      
Debt Instrument [Line Items]      
Ownership Percentage 33.33%    
mv Nordic Bulk Oasis [Member] | Not Primary Beneficiary | ST Shipping and Transport Ltd. (STST) [Member]      
Debt Instrument [Line Items]      
Ownership Percentage 33.33%    
mv Nordic Bulk Oasis [Member] | Not Primary Beneficiary | ASO 2020 Maritime S.A. (ASO2020) [Member]      
Debt Instrument [Line Items]      
Ownership Percentage 33.33%    
PBC US LLC Automobile Loan [Member]      
Debt Instrument [Line Items]      
Secured long-term debt, gross   25,856 28,582
PBC US LLC Master Loan [Member]      
Debt Instrument [Line Items]      
Secured long-term debt, gross   $ 207,197 $ 236,242