PREMISES AND EQUIPMENT AND DEVELOPED SOFTWARE - Premises and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	9 Months Ended	12 Months Ended
	Mar. 31, 2021	Jun. 30, 2021	Sep. 30, 2021	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Premises and equipment, gross				$ 2,084	$ 1,946
Accumulated depreciation				(1,738)	(1,545)
Total	$ 345	$ 349	$ 305	346	401
Depreciation expense	$ 56	$ 103	$ 147	$ 193	310
Leasehold improvements
Property, Plant and Equipment [Line Items]
Expected useful life (in years)				5 years
Premises and equipment, gross				$ 28	28
Furniture, fixtures and equipment
Property, Plant and Equipment [Line Items]
Expected useful life (in years)				10 years
Premises and equipment, gross				$ 243	243
IT equipment
Property, Plant and Equipment [Line Items]
Premises and equipment, gross				$ 1,813	$ 1,675
IT equipment | Minimum
Property, Plant and Equipment [Line Items]
Expected useful life (in years)				3 years
IT equipment | Maximum
Property, Plant and Equipment [Line Items]
Expected useful life (in years)				5 years