Sale of In-Store Marketing Business and Presentation as Discontinued Operations - Discontinued operations on the condensed consolidated balance sheets (Details) - USD ($)	Dec. 31, 2024	Dec. 31, 2023
Current Assets:
Current assets related to discontinued operations		$ 292,000
Current Liabilities:
Current liabilities related to discontinued operation	$ 33,000	257,000
In-Store Marketing Business | Discontinued operations disposed by sale
Current Assets:
Accounts receivable, net		292,000
Current assets related to discontinued operations		292,000
Current Liabilities:
Accounts payable		7,000
Accrued sales tax	24,000	169,000
Other accrued liabilities	9,000	81,000
Current liabilities related to discontinued operation	$ 33,000	$ 257,000