Revenue Recognition (Tables)

9 Months Ended

Sep. 30, 2019

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue [Table Text Block]

	Three months ended				Nine months ended
In thousands	September 30 2019		September 30 2018		September 30 2019		September 30 2018
Digital product sales:
Catalog and small customized products	$	3,951	$	2,857	$	10,155	$	8,158
Large customized products		-		-		-		1,000
Subtotal		3,951		2,857		10,155		9,158
Digital product lease and maintenance:
Operating leases		270		350		900		1,116
Maintenance agreements		251		243		763		773
Subtotal		521		593		1,663		1,889
Total	$	4,472	$	3,450	$	11,818	$	11,047

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

In thousands	September 30 2019		December 31 2018
Gross receivables	$	3,422	$	4,067
Allowance for bad debts		623		1,796
Net receivables		2,799		2,271
Contract liabilities		1,211		465

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

	Three months ended				Nine months ended
In thousands	September 30 2019		September 30 2018		September 30 2019		September 30 2018
Revenue recognized in the period from:
Amounts included in the contract liability     at the beginning of the period	$	680	$	218	$	392	$	806