Revenue Recognition (Tables)

9 Months Ended

Sep. 30, 2018

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue [Table Text Block]

	Three months ended September 30,				Nine months ended September 30,
In thousands	2018		2017		2018		2017
Digital product sales:
Catalog and small customized products	$	2,857	$	5,270	$	8,158	$	11,210
Large customized products		-		4,406		1,000		4,406
Subtotal		2,857		9,676		9,158		15,616
Digital product lease and maintenance		593		650		1,889		1,765
Total	$	3,450	$	10,326	$	11,047	$	17,381

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

In thousands	September 30, 2018		December 31, 2017
Gross receivables	$	3,738	$	3,753
Allowance for bad debts		1,763		231
Net receivables		1,975		3,522
Contract liabilities		895		1,209

Schedule of Changes in Contract Asset and Contract Liability [Table Text Block]

In thousands	Three months ended September 30, 2018		Nine months ended September 30, 2018
Revenue recognized in the period from:
amounts included in the contract liability at the   beginning of the period	$	218	$	806
Performance obligations satisfied in previous periods   (for example, due to changes in transaction price)		-		-