Note 15 - Geographical Information (Tables)

6 Months Ended

Sep. 30, 2018

Notes Tables

Long-lived Assets by Geographic Areas [Table Text Block]

	September 30, 2018		March 31, 2018
United States	$	5,224,050	$	5,209,831
Foreign		31,847,163		15,063,340
Total property and equipment, net	$	37,071,213	$	20,273,171

	September 30, 2018		March 31, 2018
Australia	$	5,246	$	-
United Kingdom		5,142		-
Canada		17,993		-
Mexico		3,516,541		4,352,257
Romania		3,293,210		3,626,136
Netherlands		6,202,377		7,084,947
China		18,806,654		-
Total property and equipment, net	$	31,847,163	$	15,063,340

Revenue from External Customers by Geographic Areas [Table Text Block]

	September 30, 2018		September 30, 2017
United States	$	96,788,427	$	85,319,178
Foreign		13,419,819		11,239,685
Total revenue	$	110,208,246	$	96,558,863