Net Sales (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Disaggregation of Revenue
Net Sales	$ 73,969	$ 66,866
Operating Segments | Debit and Credit
Disaggregation of Revenue
Net Sales	59,839	48,929
Operating Segments | Prepaid Debit
Disaggregation of Revenue
Net Sales	14,540	16,744
Operating Segments | Other
Disaggregation of Revenue
Net Sales		1,679
Intersegment eliminations
Disaggregation of Revenue
Net Sales	(410)	(486)
Products
Disaggregation of Revenue
Net Sales	42,501	32,757
Products | Operating Segments | Debit and Credit
Disaggregation of Revenue
Net Sales	42,911	32,844
Products | Operating Segments | Other
Disaggregation of Revenue
Net Sales		397
Products | Intersegment eliminations
Disaggregation of Revenue
Net Sales	(410)	(484)
Services
Disaggregation of Revenue
Net Sales	31,468	34,109
Services | Operating Segments | Debit and Credit
Disaggregation of Revenue
Net Sales	16,928	16,085
Services | Operating Segments | Prepaid Debit
Disaggregation of Revenue
Net Sales	$ 14,540	16,744
Services | Operating Segments | Other
Disaggregation of Revenue
Net Sales		1,282
Services | Intersegment eliminations
Disaggregation of Revenue
Net Sales		$ (2)