PREMISES AND EQUIPMENT & DEVELOPED SOFTWARE - Premises and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	$ 1,946		$ 1,946
Accumulated amortization	(1,601)		(1,545)
Total	345		401
Depreciation expense (less than)	56	$ 92
Leasehold improvements
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	$ 28		28
Expected Useful Life	5 years
Furniture, fixtures and equipment
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	$ 243		243
Expected Useful Life	10 years
IT equipment
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	$ 1,675		$ 1,675
IT equipment | Minimum
Property, Plant and Equipment [Line Items]
Expected Useful Life	3 years
IT equipment | Maximum
Property, Plant and Equipment [Line Items]
Expected Useful Life	5 years