CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
Net cash provided by operating activities - continuing operations	$ 10,527,154	$ 5,063,483
Net cash provided by operating activities - discontinued operations		324,522
Net cash provided by operating activities	10,527,154	5,388,005
Cash flows from investing activities
Additions to property, plant and equipment and construction in progress	(2,673,192)	(13,709,598)
Proceeds from asset dispositions	548,480	51,590
Proceeds from sale of CW-Belize, net of cash provided	6,971,234
Collections on loans receivable	734,980	1,041,787
Payment for land and right of way held for development		(2,168,180)
Net cash provided by (used in) investing activities	5,581,502	(14,784,401)
Cash flows from financing activities
Dividends paid to common shareholders	(3,833,359)	(3,818,499)
Dividends paid to preferred shareholders	(2,958)	(2,846)
Issuance (repurchase) of redeemable preferred stock	(24,096)	(2,718)
Proceeds received from exercise of stock options	15,822	12,976
Payments on note payable to related party		(392,000)
Issuance of note payable to related party		784,000
Net cash used in financing activities	(3,844,591)	(3,419,087)
Net increase (decrease) in cash and cash equivalents and restricted cash	12,264,065	(12,815,483)
Cash and cash equivalents and restricted cash at beginning of period	31,337,477	45,482,966
Cash and cash equivalents and restricted cash at end of period	43,601,542	32,667,483
Cash and cash equivalents at end of period	41,991,071	32,667,483
Restricted cash at end of period	1,610,471
Cash and cash equivalents and restricted cash at end of period	43,601,542	32,667,483
Interest paid in cash	1,501	6,539
Non-cash investing and financing activities
Dividends declared but not paid	1,280,213	1,275,066
Transfers from inventory to property, plant and equipment and construction in progress	342,619	304,279
Transfers from construction in progress to property, plant and equipment	7,408,954	492,252
Transfers from other assets to construction in progress		$ 1,253,299
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 4,393,737