Condensed Statements of Operations (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Product [Member]
Revenue from contract with customer				$ 1,247
Cost of goods and services	(31)	(1)	(36)	(1,394)
Cost of goods and services	31	1	36	1,394
License [Member]
Revenue from contract with customer	746	572	1,225	784
Technology Service [Member]
Revenue from contract with customer		15		25
Cost of goods and services				(4)
Cost of goods and services				$ 4