Fixed Assets (Details)	Jun. 30, 2019 USD ($) vessel barge	Dec. 31, 2018 USD ($)
Property, Plant and Equipment [Line Items]
Number of dry bulk vessels owned | vessel	21
Number of dry bulk vessels financed under finance leases | vessel	5
Number of barges owned | barge	1
Vessels, net	$ 298,410,549	$ 278,793,474
Other fixed assets, net	2,686,006	2,561,892
Total fixed assets, net	301,096,555	281,355,366
Right of Use Assets	54,864,199	56,113,096
m/v BULK PANGAEA
Property, Plant and Equipment [Line Items]
Owned vessels	15,499,311	15,231,305
m/v BULK PATRIOT
Property, Plant and Equipment [Line Items]
Owned vessels	9,663,737	10,130,797
m/v BULK JULIANA
Property, Plant and Equipment [Line Items]
Owned vessels	10,358,342	10,651,029
m/v NORDIC ODYSSEY
Property, Plant and Equipment [Line Items]
Owned vessels	23,590,263	24,283,497
m/v NORDIC ORION
Property, Plant and Equipment [Line Items]
Owned vessels	24,392,141	25,095,469
m/v BULK NEWPORT
Property, Plant and Equipment [Line Items]
Owned vessels	13,470,429	13,956,092
m/v NORDIC BARENTS
Property, Plant and Equipment [Line Items]
Owned vessels	4,127,735	4,370,817
m/v NORDIC BOTHNIA
Property, Plant and Equipment [Line Items]
Owned vessels	4,082,548	4,322,490
m/v NORDIC OSHIMA
Property, Plant and Equipment [Line Items]
Owned vessels	28,969,352	28,897,931
m/v NORDIC ODIN
Property, Plant and Equipment [Line Items]
Owned vessels	28,708,182	29,151,529
m/v NORDIC ODIN
Property, Plant and Equipment [Line Items]
Owned vessels	28,541,651	29,321,599
m/v NORDIC OASIS
Property, Plant and Equipment [Line Items]
Owned vessels	29,803,793	30,416,651
m/v BULK ENDURANCE
Property, Plant and Equipment [Line Items]
Owned vessels	25,529,140	26,020,505
m/v BULK FREEDOM
Property, Plant and Equipment [Line Items]
Owned vessels	8,380,280	8,467,058
m/v BULK PRIDE
Property, Plant and Equipment [Line Items]
Owned vessels	13,263,936	13,531,561
m/v BULK SPIRIT
Property, Plant and Equipment [Line Items]
Owned vessels	13,112,983	1,950,000
m/v BULK INDEPENDENCE
Property, Plant and Equipment [Line Items]
Owned vessels	13,921,582	0
MISS NORA G PEARL
Property, Plant and Equipment [Line Items]
Owned vessels	2,995,144	2,995,144
m/v BULK DESTINY
Property, Plant and Equipment [Line Items]
Right of Use Assets	21,896,217	22,307,701
m/v BULK BEOTHUK
Property, Plant and Equipment [Line Items]
Right of Use Assets	6,827,418	7,065,300
m/v BULK TRIDENT
Property, Plant and Equipment [Line Items]
Right of Use Assets	12,380,316	12,664,906
m/v BULK PODS
Property, Plant and Equipment [Line Items]
Right of Use Assets	$ 13,760,248	$ 14,075,189