Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details

Revenue Recognition (Details) - Disaggregation of revenue from contracts with customers - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Digital product sales:
Revenue from contracts with customers	$ 3,463,000	$ 2,986,000	$ 6,087,000	$ 7,335,000
Digital Product Sales [Member]
Digital product sales:
Revenue from contracts with customers	3,273,000	2,767,000	5,702,000	6,888,000
Digital Product Sales [Member] \| Catalog and Small Customized Products [Member]
Digital product sales:
Revenue from contracts with customers	3,273,000	2,767,000	5,702,000	6,888,000
Digital Product Sales [Member] \| Large Customized Products [Member]
Digital product sales:
Revenue from contracts with customers
Digital Product Lease and Maintenance [Member]
Digital product sales:
Revenue from contracts with customers	190,000	219,000	385,000	447,000
Digital Product Lease and Maintenance [Member] \| Operating Leases [Member]
Digital product sales:
Revenue from contracts with customers	99,000	117,000	198,000	248,000
Digital Product Lease and Maintenance [Member] \| Maintenance Agreements [Member]
Digital product sales:
Revenue from contracts with customers	$ 91,000	$ 102,000	$ 187,000	$ 199,000