Revenue Recognition (Tables)

3 Months Ended

Mar. 31, 2018

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue [Table Text Block]

	For the Three Months Ended
In thousands	March 31, 2018		March31, 2017
Digital product sales:
Catalog and small customized products	$	2,948	$	2,580
Large customized products		1,000		-
Subtotal		3,948		2,580
Digital product lease and maintenance		587		497
Total	$	4,535	$	3,077

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

In thousands	March 31,  2018		December 31, 2017
Receivables	$	3,668	$	3,522
Contract liabilities		1,216		1,209

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

In thousands	Three Months Ended March 31, 2018
Revenue recognized in the period from:
Amounts included in the contract liability at the     beginning of the period	$	721
Performance obligations satisfied in previous periods     (for example, due to changes in transaction price)		-