Note 4 - Restricted Cash (Tables)

6 Months Ended

Sep. 30, 2018

Notes Tables

Schedule of Cash and Cash Equivalents [Table Text Block]

	September 30, 2018		March 31, 2018
Cash and cash equivalents	$	5,612,472	$	4,803,238
Restricted cash		18,865		269,659
Total cash, cash equivalents and restricted cash shown in the statement of cash flows	$	5,631,337	$	5,072,897