PREPAID EXPENSES AND OTHER ASSETS (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Jun. 30, 2021	Dec. 31, 2020
PREPAID EXPENSES AND OTHER ASSETS
Prepaid clinical study		$ 0	$ 32
Prepaid insurance		138	347
PPE deposits		0	700
Prepaid equipment		61	61
Prepaid deposit for inventory		175	211
Prepaid expenses		102	66
Other assets		123	79
Total Prepaid expenses and other assets		599	1,510
Current portion of prepaid expenses and other assets		(516)	(1,452)
Prepaid consulting services		0	14
Prepaid expenses and other assets less current portion	$ 83	$ 83	$ 58