Note 13 - Equipment Leased to Customers (Tables)

12 Months Ended

Mar. 31, 2018

Notes Tables

Schedule of Future Minimum Rental Receivables from Leased Asset [Table Text Block]

Year ended March 31,
2019	$	2,547,888
2020		1,392,588
2021		732,588
2022		83,288
2023		66,547
Thereafter		-
Total minimum lease payments	$	4,822,899