Revenue Recognition (Tables)

9 Months Ended

Sep. 30, 2021

Revenue Recognition (Tables) [Line Items]

Disaggregation of Revenue [Table Text Block]

	Three months ended				Nine months ended
In thousands	September 30, 2021		September 30, 2020		September 30, 2021		September 30, 2020
Digital product sales:
Catalog and small customized products	$	2,393	$	2,405	$	6,882	$	5,257
Large customized products		-		-		-		-
Subtotal		2,393		2,405		6,882		5,257
Digital product lease and maintenance:
Operating leases		196		240		615		755
Maintenance agreements		276		251		841		846
Subtotal		472		491		1,456		1,601
Total	$	2,865	$	2,896	$	8,338	$	6,858

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

In thousands	September 30, 2021		December 31, 2020
Gross receivables	$	2,134	$	2,042
Allowance for bad debts		428		660
Net receivables		1,706		1,382
Contract liabilities		328		618

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

	Three months ended				Nine months ended
In thousands	September 30, 2021		September 30, 2020		September 30, 2021		September 30, 2020
Revenue recognized in the period from:
Amounts included in the contract liability at    the beginning of the period	$	-	$	149	$	484	$	82
Performance obligations satisfied in previous periods    (for example, due to changes in transaction price)		-		-		-		-