Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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FAIR VALUE MEASUREMENTS, Assets and Liabilities Measured at Fair Value on Recurring Basis (Q3) (Details) - Recurring [Member] - USD ($)	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020	Sep. 22, 2020
Level 1 [Member]
Assets [Abstract]
Marketable securities held in Trust Account	$ 132,259,019	$ 132,253,093	$ 132,250,443	$ 132,250,000
Level 1 [Member] \| Public Warrants [Member]
Liabilities [Abstract]
Warrant Liability	5,885,125	8,927,000
Level 3 [Member] \| Private Placement Warrants [Member]
Liabilities [Abstract]
Warrant Liability	$ 3,740,000	$ 5,673,000