NOTES PAYABLE AND SPECIAL ASSESSMENT OBLIGATIONS - Notes Payable and Special Assessment Obligations (Details)	3 Months Ended	12 Months Ended
Mar. 31, 2020 USD ($) renewal_option	Dec. 31, 2019 USD ($)
Debt Instrument [Line Items]
Debt	$ 41,739,000
Secured Debt \| $4.9 Million Note Payable \| New Mexico
Debt Instrument [Line Items]
Debt amount	$ 4,900,000.0
Stated interest rate	7.75%	8.50%
Prime Rate \| Secured Debt \| $4.9 Million Note Payable \| New Mexico
Debt Instrument [Line Items]
Variable rate	3.00%
Minimum \| Secured Debt \| Special Assessment Bonds
Debt Instrument [Line Items]
Stated interest rate	6.00%
Maximum \| Secured Debt \| Special Assessment Bonds
Debt Instrument [Line Items]
Stated interest rate	7.50%
Continuing Operations
Debt Instrument [Line Items]
Debt	$ 41,820,000	$ 51,455,000
Less: deferred financing costs of notes payable	(81,000)	(178,000)
Total notes payable	41,739,000	51,277,000
Continuing Operations \| Special Assessment Bonds
Debt Instrument [Line Items]
Special assessment bond	61,000	61,000
Continuing Operations \| Secured Debt \| $37.0 Million Note Payable
Debt Instrument [Line Items]
Debt	36,819,000	35,454,000
Continuing Operations \| Secured Debt \| $11.0 Million Note Payable
Debt Instrument [Line Items]
Debt	0	11,000,000
Continuing Operations \| Secured Debt \| $4.9 Million Note Payable
Debt Instrument [Line Items]
Debt	4,940,000	$ 4,940,000
JPMorgan Chase Funding Inc. \| Secured Debt \| $11.0 Million Note Payable
Debt Instrument [Line Items]
Debt amount	11,000,000
Mortgage loans in process of foreclosure, notes purchased	$ 13,200,000
Maturity term	1 year
JPMorgan Chase Funding Inc. \| LIBOR \| Secured Debt \| $11.0 Million Note Payable
Debt Instrument [Line Items]
Variable rate	3.45%
MidFirst Bank \| Secured Debt \| $37.0 Million Note Payable
Debt Instrument [Line Items]
Debt amount	$ 37,000,000.0
Stated interest rate	5.10%	5.26%
Maturity term	1 year
Number of extensions available for loans acquired \| renewal_option	2
MidFirst Bank \| LIBOR \| Secured Debt \| $37.0 Million Note Payable
Debt Instrument [Line Items]
Annual interest rate	0.99%	1.76%
MidFirst Bank \| Minimum \| LIBOR \| Secured Debt \| $37.0 Million Note Payable
Debt Instrument [Line Items]
Variable rate	3.25%
MidFirst Bank \| Maximum \| LIBOR \| Secured Debt \| $37.0 Million Note Payable
Debt Instrument [Line Items]
Variable rate		3.75%

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