Note 2 - REVENUE FROM CONTRACTS WITH CUSTOMERS - Disaggregation of Revenue (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Percent of revenues	100.00%	100.00%	100.00%	100.00%
Transferred over Time [Member]
Percent of revenues	68.00%	72.00%	70.00%	60.00%
Transferred at Point in Time [Member]
Percent of revenues	32.00%	28.00%	30.00%	40.00%