Quarterly report pursuant to Section 13 or 15(d)

Consolidated Balance Sheets (Parenthetical)

v3.8.0.1
Consolidated Balance Sheets (Parenthetical) - USD ($)
 3 Months Ended
Mar. 31, 2018
Dec. 31, 2017
Accumulated depreciation, leased property $ 77,452,422 $ 72,155,753
Accumulated depreciation, property and equipment 13,470,161 12,643,636
Reserve for financing notes and related accrued interest receivable 4,600,000 4,100,000
Accumulated amortization, Deferred costs 790,381 623,764
Secured debt, debt issuance costs $ 250,507 $ 254,646
Capital stock non-convertible, par value (in dollars per share) $ 0.001 $ 0.001
Capital stock non-convertible, shares issued 11,924,478 11,915,830
Capital stock non-convertible, shares outstanding 11,924,478 11,915,830
Capital stock non-convertible, shares authorized 100,000,000 100,000,000
Series A Cumulative Redeemable Preferred Stock [Member]    
Preferred stock interest rate 7.375%  
Preferred Stock, Liquidation Preference $ 130,000,000 $ 130,000,000
Preferred Stock, Liquidation Preference (in dollars per share) $ 2,500 $ 2,500
Preferred stock, par value (in dollars per share) $ 0.001 $ 0.001
Preferred stock, shares authorized 10,000,000 10,000,000
Preferred stock, shares issued 52,000 52,000
Preferred stock, shares outstanding 52,000 52,000
Convertible Debt [Member]    
Discount and debt issuance costs $ 1,771,120 $ 1,967,917