Note 1 - Organization and Basis of Presentation (Details Textual) - USD ($)	1 Months Ended	9 Months Ended
	May 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Mar. 31, 2021	Apr. 30, 2019	Aug. 30, 2016
Cash and Cash Equivalents, at Carrying Value, Ending Balance		$ 2,298,000		$ 3,767,000
Working Capital (Deficit)		11,186,000		9,298,000
Line of Credit, Current		0		1,000,000
Long-term Debt and Capital Lease Obligations, Current and Noncurrent		4,111,000
Proceeds from Issuance of Unsecured Debt		0	$ 1,381,000
SBA CARES Act Paycheck Protection Program [Member]
Proceeds from Issuance of Unsecured Debt	$ 1,381,000
Unsecured Subordinated Loan From Skywords [Member]
Debt Instrument, Face Amount					$ 1,500,000
First Foundation Bank [Member]
Line of Credit, Current		0		1,000,000
First Foundation Bank [Member] | Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity		2,000,000				$ 2,000,000
Line of Credit, Current		$ 0		$ 1,000,000