Revenue Recognition (Tables)

12 Months Ended

Dec. 31, 2021

Revenue Recognition (Tables) [Line Items]

Disaggregation of Revenue [Table Text Block]

In thousands	2021		2020
Digital product sales:
Catalog and small       customized products	$	9,418	$	6,823
Large customized       products		-		555
Subtotal		9,418		7,378
Digital product lease and maintenance:
Operating leases		817		936
Maintenance agreements		1,115		1,131
Subtotal		1,932		2,067
Total	$	11,350	$	9,445

Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]

In thousands	2021		2020
Gross receivables	$	2,572	$	2,042
Allowance for bad debts		423		660
Net receivables		2,149		1,382
Contract liabilities		2,011		618

Schedule Of Changes In Contract Asset And Contract Liability [Table Text Block]

In thousands	2021			2020
Revenue recognized in the period from:
Amounts included in the contract liability   at the beginning of the period	$	484	$	82
Performance obligations satisfied in    previous periods (for example, due to    changes in transaction price)		-		-