Note 14 - Segments and Geographic Areas - Consolidated Assets and Long Lived Assets by Geographic Area (Details) - Geographic Concentration Risk [Member]	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Long-lived Assets [Member] | UNITED STATES
Percentage	30.00%	26.00%
Long-lived Assets [Member] | SWITZERLAND
Percentage	35.00%	34.00%
Long-lived Assets [Member] | ITALY
Percentage	29.00%	36.00%
Long-lived Assets [Member] | Other Countries in EMEA [Member]
Percentage	6.00%	4.00%
Long-lived Assets [Member] | Europe, Middle East, and Africa [Member]
Percentage	70.00%	74.00%
Long-lived Assets [Member] | Asia [Member]
Percentage	0.00%	0.00%
Long-lived Assets [Member] | All Countries [Member]
Percentage	100.00%	100.00%
Assets, Total [Member] | UNITED STATES
Percentage	78.00%	77.00%
Assets, Total [Member] | SWITZERLAND
Percentage	16.00%	16.00%
Assets, Total [Member] | ITALY
Percentage	4.00%	5.00%
Assets, Total [Member] | Other Countries in EMEA [Member]
Percentage	1.00%	1.00%
Assets, Total [Member] | Europe, Middle East, and Africa [Member]
Percentage	21.00%	22.00%
Assets, Total [Member] | Asia [Member]
Percentage	1.00%	1.00%
Assets, Total [Member] | All Countries [Member]
Percentage	100.00%	100.00%