Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies (Narrative) (Details)

v3.23.1
Summary of Significant Accounting Policies (Narrative) (Details)
 3 Months Ended 6 Months Ended
Oct. 11, 2022
USD ($)
Dec. 31, 2022
USD ($)
customer
$ / shares
Dec. 31, 2021
USD ($)
customer
Dec. 31, 2022
USD ($)
customer
$ / shares
Dec. 31, 2021
USD ($)
customer
Jun. 30, 2022
USD ($)
$ / shares
Jun. 30, 2021
USD ($)
Summary Of Significant Accounting Policies [Line Items]              
Contract assets   $ 0   $ 0   $ 0 $ 0
Contract liabilities   $ 88,000   $ 88,000   $ 100,000 423,000
Lease, Practical Expedients, Package [true false]       false      
Common stock, par value (in dollars per share) | $ / shares   $ 0.001   $ 0.001   $ 0.001  
Dividend rate       0.00%      
Amount in excess of insured limit   $ 3,400,000   $ 3,400,000   $ 18,200,000  
Accounts receivable - trade   970,000   970,000   $ 1,000,000 $ 426,000
Woodforest [Member] | Amended Credit Agreement [Member]              
Summary Of Significant Accounting Policies [Line Items]              
Repayment of term loan $ 5,500,000            
Continuing Operations [Member]              
Summary Of Significant Accounting Policies [Line Items]              
Revenue recognized included in contract liabilities     $ 0   $ 84,000    
Discontinued Operations [Member]              
Summary Of Significant Accounting Policies [Line Items]              
Revenue recognized included in contract liabilities   $ 38,000 $ 42,000 $ 48,000 $ 42,000    
Revenue [Member] | Customer Concentration Risk [Member]              
Summary Of Significant Accounting Policies [Line Items]              
Number of major customers | customer   2 4 3 4    
Minimum [Member]              
Summary Of Significant Accounting Policies [Line Items]              
Fixed assets, useful life       3 years      
Maximum [Member]              
Summary Of Significant Accounting Policies [Line Items]              
Fixed assets, useful life       39 years      
Patents and Licenses [Member]              
Summary Of Significant Accounting Policies [Line Items]              
Intangible asset, useful life       10 years      
Intellectual Property [Member] | Minimum [Member]              
Summary Of Significant Accounting Policies [Line Items]              
Intangible asset, useful life       16 years      
Intellectual Property [Member] | Maximum [Member]              
Summary Of Significant Accounting Policies [Line Items]              
Intangible asset, useful life       23 years