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Property, Plant and Equipment, Net (Details) - USD ($)
Feb. 28, 2019
Feb. 28, 2018
Property, plant and equipment, gross $ 6,450,775 $ 4,842,866
Less: accumulated depreciation (1,079,512) (805,963)
Property, plant and equipment, net 5,371,263 4,036,903
Building    
Property, plant and equipment, gross 1,882,665 1,935,423
Less: accumulated depreciation (68,596) (6,009)
Property, plant and equipment, net 1,814,069 1,929,414
Land    
Property, plant and equipment, gross 232,699 239,239
Less: accumulated depreciation 0 0
Property, plant and equipment, net 232,699 239,239
Building Improvements    
Property, plant and equipment, gross 383,985 377,253
Less: accumulated depreciation (119,889) (225,298)
Property, plant and equipment, net 264,096 151,955
Machinery and equipment    
Property, plant and equipment, gross 3,834,338 2,189,195
Less: accumulated depreciation (841,236) (536,222)
Property, plant and equipment, net 2,993,102 1,652,973
Office equipment and furniture    
Property, plant and equipment, gross 117,088 101,756
Less: accumulated depreciation (49,791) (38,434)
Property, plant and equipment, net $ 67,297 $ 63,322