Note 2 - Revenues and Product Costs (Details Textual) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Contract with Customer, Asset, after Allowance for Credit Loss, Total	$ 0	$ 0
Extended Warranties and Services, VR, and Training [Member]
Contract with Customer, Liability	544	333
Extended Product Warranties [Member] | BolaWrap [Member]
Contract with Customer, Liability	139	124
Extended Product Warranties [Member] | Intrensic [Member]
Contract with Customer, Liability	216
Virtual Reality Training [Member]
Contract with Customer, Liability	171	198
Training [Member]
Contract with Customer, Liability	$ 18	$ 11