CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	3 Months Ended				12 Months Ended			24 Months Ended
	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2018
Cash Flow from Operating Activities:
Net Income	$ 11,796,411	$ 10,912,299	$ 24,327,224	$ 12,746,392	$ 37,167,790	$ 41,719,424	$ 16,199,414
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Depreciation and Amortization					16,135,502	12,663,959	8,195,417
Amortization of Intangible Liabilities to Income Property Revenue					(2,338,531)	(2,193,957)	(2,240,008)
Loan Cost Amortization					495,438	509,263	828,075
Amortization of Discount on Convertible Debt					1,273,436	1,194,714	1,120,859
Gain on Disposition of Property, Plant, and Equipment and Intangible Assets		(3,650,858)	(304)		(22,035,666)	(38)	(12,758,770)
Impairment Charges					1,119,362	0	2,180,730
Discount Accretion on Commercial Loan Investments					(34,768)
Accretion of Commercial Loan Origination Fees						(25,232)	(164,893)
Amortization of Fees on Acquisition of Commercial Loan Investments							36,382
Discount on Commercial Loan Investment Payoff							217,500
Realized Loss on Investment Securities							575,567
Deferred Income Taxes					12,589,970	(8,953,981)	11,658,864
Non-Cash Compensation					1,684,250	1,437,223	3,178,883
Decrease (Increase) in Assets:
Refundable Income Taxes					891,556	(172,589)	(85,520)
Land and Development Costs					5,477,221	12,477,581	422,020
Impact Fees and Mitigation Credits					663,229	1,197,637	2,231,321
Other Assets					(522,436)	(3,502,041)	(4,128,648)
Increase (Decrease) in Liabilities:
Accounts Payable					(630,667)	362,411	(416,312)
Accrued and Other Liabilities					(4,357,411)	792,629	(29,492)
Deferred Revenue					1,077,185	38,793	(12,732,944)
Net Cash Provided By Operating Activities					48,655,460	57,545,796	14,288,445
Cash Flow from Investing Activities:
Acquisition of Property, Plant, and Equipment and Intangible Lease Assets and Liabilities					(109,394,481)	(94,627,373)	(42,623,497)
Acquisition of Property, Plant, and Equipment and Intangible Lease Assets and Liabilities through Business Combinations							(49,926,604)
Acquisition of Commercial Loan Investments						(2,940,000)
Acquisition of Land					(4,702,243)		(4,778,790)
Cash Contribution for Interest in Joint Venture					(2,137,018)
Proceeds from Sale of Investment Securities							6,252,362
Proceeds from Disposition of Property, Plant, and Equipment					26,377,525		49,170,314
Principal Payments Received on Commercial Loan Investments					11,960,467	15,000,000	14,282,500
Net Cash Used In Investing Activities					(77,895,750)	(82,567,373)	(27,623,715)
Cash Flow from Financing Activities:
Proceeds from Long-Term Debt					106,300,000	63,500,000	70,050,000
Payments on Long-Term Debt					(55,996,954)	(35,100,000)	(49,050,000)
Cash Paid for Loan Fees					(263,473)	(532,814)	(400,586)
Cash Proceeds from Exercise of Stock Options and Stock Issuance					437,081	1,188,069	157,197
Contributions from Noncontrolling Interest in Consolidated VIE							102,844
Cash Used to Purchase Common Stock					(9,837,242)	(7,209,454)	(7,431,896)
Cash from Excess Tax Benefit (Expense) from Vesting of Restricted Stock							299,845
Cash Paid for Vesting of Restricted Stock					(498,374)	(394,254)	(196,206)
Dividends Paid					(1,484,167)	(997,461)	(682,097)
Net Cash Provided By Financing Activities					38,656,871	20,454,086	12,849,101
Net Increase (Decrease) in Cash					9,416,581	(4,567,491)	(486,169)
Cash, Beginning of Year		12,615,383		17,182,874	12,615,383	17,182,874	17,669,043	$ 17,182,874
Cash, End of Period	22,031,964		12,615,383		22,031,964	12,615,383	17,182,874	22,031,964
Reconciliation of Cash to the Consolidated Balance Sheets:
Cash and Cash Equivalents	2,310,489		6,107,252		2,310,489	6,107,252	7,327,405	2,310,489
Restricted Cash	19,721,475		6,508,131		19,721,475	6,508,131	9,855,469	19,721,475
Total Cash as of December 31, 2018, 2017, and 2016, respectively	$ 22,031,964	$ 12,615,383	$ 12,615,383	$ 17,182,874	$ 12,615,383	$ 17,182,874	$ 17,669,043	$ 17,182,874