REVENUE RECOGNITION - Timing of Revenue Recognition (Details) - USD ($)	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Revenues
Over Lease Term	$ 10,920,000	$ 9,389,000
Commercial Loan Investment Related Revenue		301,000
Total Revenues	14,259,319	23,497,243
Asset/Good Transferred at a Point in Time
Revenues
Revenue from contract with customer, including assessed tax	3,309,000	13,780,000
Services Transferred Over Time
Revenues
Revenue from contract with customer, including assessed tax	30,000	27,000
Income Properties
Revenues
Over Lease Term	10,694,000	9,179,000
Total Revenues	10,724,418	9,205,727
Income Properties \| Services Transferred Over Time
Revenues
Revenue from contract with customer, including assessed tax	30,000	27,000
Commercial Loan Investments
Revenues
Commercial Loan Investment Related Revenue		301,000
Total Revenues		300,999
Real Estate Operations
Revenues
Revenue from contract with customer, including assessed tax	3,534,901	13,990,517
Over Lease Term	226,000	210,000
Total Revenues	3,534,901	13,990,517
Real Estate Operations \| Asset/Good Transferred at a Point in Time
Revenues
Revenue from contract with customer, including assessed tax	$ 3,309,000	$ 13,780,000

Interest and fee income related to commercial loans including industrial and agricultural, real estate (commercial and residential, construction and development), trade financing, and lease financing.

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