Note 2 - REVENUE - Disaggregation of Revenue (Details)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Percent of revenues	100.00%	100.00%
Transferred over Time [Member]
Percent of revenues	65.00%	63.00%
Transferred at Point in Time [Member]
Percent of revenues	35.00%	37.00%