Annual report pursuant to Section 13 and 15(d)

Consolidated Balance Sheets (Parenthetical)

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Consolidated Balance Sheets (Parenthetical) - USD ($)
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Accumulated depreciation, leased property $ 105,825,816 $ 87,154,095
Accumulated depreciation, property and equipment 19,304,610 15,969,346
Accumulated amortization, deferred costs 1,956,710 1,290,236
Reserve for financing notes and related accrued interest receivable $ 600,000 $ 600,000
Preferred stock, par value (in dollars per share) $ 0.001  
Preferred stock, authorized (in shares) 10,000,000  
Preferred stock, outstanding (in shares) 50,197  
Capital stock non-convertible, par value (in dollars per share) $ 0.001 $ 0.001
Capital stock non-convertible, shares issued (in shares) 13,638,916 11,960,225
Capital stock non-convertible, shares outstanding (in shares) 13,638,916 11,960,225
Capital stock non-convertible, shares authorized (in shares) 100,000,000 100,000,000
Series A Cumulative Redeemable Preferred Stock    
Preferred stock interest rate 7.375% 7.375%
Preferred stock, liquidation preference $ 125,493,175 $ 125,555,675
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, authorized (in shares) 10,000,000 10,000,000
Preferred stock, issued (in shares) 50,197 50,222
Preferred stock, outstanding (in shares) 50,197 50,222
Convertible Debt    
Unamortized discount and debt issuance costs $ 3,768,504 $ 1,180,729
Secured Debt    
Deferred debt financing costs, net $ 158,070 $ 210,891