Revenue Recognition (Tables)

12 Months Ended

Dec. 31, 2019

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue [Table Text Block]

In thousands	2019		2018
Digital product sales:
Catalog and small    customized products	$	13,322	$	10,958
Large customized    products		1,388		1,000
Subtotal		14,710		11,958
Digital product lease and     maintenance:
Operating leases		1,215		1,413
Maintenance agreements		1,110		1,028
Subtotal		2,325		2,441
Total	$	17,035	$	14,399

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

In thousands		2019		2018
Gross receivables	$	3,124	$	4,067
Allowance for bad debts		743		1,796
Net receivables		2,381		2,271
Contract liabilities		230		465

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

In thousands		2019		2018
Revenue recognized in the period from:
Amounts included in the contract liability   at the beginning of the period	$	392	$	891
Performance obligations satisfied in    previous periods (for example, due to    changes in transaction price)				-