XML 48 R34.htm IDEA: XBRL DOCUMENT v3.20.4
Note 3 - Investments (Details Textual) - USD ($)
3 Months Ended 12 Months Ended
Dec. 30, 2016
Mar. 31, 2020
Jun. 30, 2018
Dec. 31, 2020
Dec. 31, 2019
Jun. 30, 2019
Equity Method Investments   $ 0        
Cost-method Investments, Other than Temporary Impairment       $ 1,009,000  
Long-term Investments [Member]            
Equity Method Investments       1,921,000    
Equity Method Investments [Member] | Investment Income (Expense) [Member]            
Gain (Loss) on Investments, Total       400,000 $ 332,000  
Privately-Held Identity and Professional Services Company With Ties to the FinTech Industry [Member]            
Equity Method Investment, Ownership Percentage           40.00%
Investments, Unfunded Commitments $ 1,000,000          
Investment, Unfunded Commitments, to Be Held in Escrow $ 500,000          
Lumense Inc. [Member]            
Cost-method Investments, Other than Temporary Impairment   $ 750,000 $ 250,000      
Lumense Inc. [Member] | Other Current Liabilities [Member]            
Deposit Liability, Current       $ 3,335,000    
NKD Enterprises LLC [Member]            
Equity Method Investment, Ownership Percentage         25.50%  
Ownership Percentage       10.00%    
NKD Enterprises LLC [Member] | Investment Income [Member]            
Proceeds from Cost Method Investment, Distribution       $ 230,000