Note 9 - Stockholders' Deficit (Details Textual) $ in Thousands	Sep. 30, 2022 USD ($) shares
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total \| $	$ 0
Restricted Stock Units (RSUs) [Member] \| Share-Based Payment Arrangement, Employee [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Outstanding, Number, Ending Balance (in shares)	567,640
Restricted Stock Units (RSUs) [Member] \| Share-Based Payment Arrangement, Employee [Member] \| Old Cytocom Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Outstanding, Number, Ending Balance (in shares)	507,574
Restricted Stock Units (RSUs) [Member] \| Share-Based Payment Arrangement, Employee [Member] \| The Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Outstanding, Number, Ending Balance (in shares)	60,066