Quarterly report pursuant to Section 13 or 15(d)

Note 1 - Organization and Significant Accounting Policies (Details Textual)

v3.20.4
Note 1 - Organization and Significant Accounting Policies (Details Textual)
$ in Thousands
Dec. 12, 2019
Dec. 26, 2020
USD ($)
Mar. 28, 2020
USD ($)
[1]
Dec. 28, 2019
Mar. 31, 2019
USD ($)
Number of Leases       2  
Operating Lease, Right-of-Use Asset   $ 946 $ 1,183    
Operating Lease, Liability, Total   $ 1,244      
Accounting Standards Update 2016-02 [Member]          
Operating Lease, Right-of-Use Asset         $ 1,400
Operating Lease, Liability, Total         $ 1,800
Reverse Stock Split [Member]          
Stockholders' Equity Note, Stock Split, Conversion Ratio 15        
[1] Derived from the audited consolidated financial statements as of and for the fiscal year ended March 28, 2020.