Note 2 - Significant Accounting Policies (Tables)

12 Months Ended

Mar. 31, 2020

Notes Tables

Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Table Text Block]

	March 31, 20 20		March 31, 201 9
	(in thousands)
Cash	$	840	$	1,329
Restricted cash		—		65
Cash and restricted cash at beginning of period	$	840	$	1,394
Cash	$	2,417	$	840
Restricted cash		—		—
Cash and restricted cash at end of period	$	2,417	$	840

Property, Plant, and Equipment, Estimated Useful Lives [Table Text Block]

Equipment	3	to	10
Furniture and fixtures	3	to	7
Leasehold improvements	10	to	25