Note C - Revenue From Contracts With Customers - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Total Revenue	$ 49,062	$ 43,754
Marketing Services [Member]
Total Revenue	12,924	12,878
Customer Care [Member]
Total Revenue	17,742	16,544
Fulfillment and Logistics Services [Member]
Total Revenue	18,396	14,332
Transferred over Time [Member]
Total Revenue	43,525	40,438
Transferred over Time [Member] | Marketing Services [Member]
Total Revenue	10,895	11,448
Transferred over Time [Member] | Customer Care [Member]
Total Revenue	17,742	16,544
Transferred over Time [Member] | Fulfillment and Logistics Services [Member]
Total Revenue	14,888	12,446
Transferred at Point in Time [Member]
Total Revenue	5,537	3,316
Transferred at Point in Time [Member] | Marketing Services [Member]
Total Revenue	2,029	1,430
Transferred at Point in Time [Member] | Customer Care [Member]
Total Revenue	0	0
Transferred at Point in Time [Member] | Fulfillment and Logistics Services [Member]
Total Revenue	$ 3,508	$ 1,886