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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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SHARE-BASED COMPENSATION - Restricted Stock Unit Activity (Details) - RSUs - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Restricted stock units issued and outstanding
Outstanding and expected to vest at beginning of period (in shares)			28,907
Granted (in shares)			19,054
Vested (in shares)			(11,314)
Forfeited (in shares)			(1,082)
Outstanding and expected to vest at end of period (in shares)	35,565		35,565		28,907
Weighted average grant price
Weighted average grant price, Outstanding and expected to vest, Beginning of period (in dollars per share)			$ 28.04
Weighted average grant price, Granted (in dollars per share)			9.92
Weighted average grant price, Vested (in dollars per share)			25.98
Weighted average grant price, Forfeited (in dollars per share)			29.81
Weighted average grant price, Outstanding and expected to vest, End of period (in dollars per share)	$ 18.42		$ 18.42		$ 28.04
Unrecognized compensation	$ 504	$ 631	$ 504	$ 631
Weighted average remaining vesting life			2 years	1 year 10 months 28 days	1 year 9 months 25 days
Stock-based compensation expenses	84	72	$ 242	$ 217
Research and development expense
Weighted average grant price
Stock-based compensation expenses	74	63	215	194
Selling, general, and administrative
Weighted average grant price
Stock-based compensation expenses	$ 10	$ 9	$ 27	$ 23