PREMISES AND EQUIPMENT AND DEVELOPED SOFTWARE - Premises and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	$ 2,202		$ 2,084
Accumulated depreciation	(1,786)		(1,738)
Total	416		346
Depreciation expense	$ 48	$ 56
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	$ 1,931		$ 1,813
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