Note 21 - Geographical Information - Long-lived Assets By Geographic Region (Details) - USD ($)	Mar. 31, 2018	Mar. 31, 2017
Non-current Assets	$ 20,273,171	$ 5,324,488
UNITED STATES
Non-current Assets	5,209,831	5,323,471
MEXICO
Non-current Assets	4,352,257
Non-US [Member]
Non-current Assets	15,063,340	$ 1,017
NETHERLANDS
Non-current Assets	7,084,947
ROMANIA
Non-current Assets	$ 3,626,136