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v3.21.1

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Cash flows from operating activities |  |
Net income | $ 1,117,565 | $ 3,249,605
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Unrealized (gain) loss on net put/call option | (131,000) | 161,000
Net cash provided by operating activities - continuing operations | 1,466,141 | 283,539
Net cash used in operating activities - discontinued operations | (380,001) | (572,188)
Net cash provided by (used in) operating activities | 1,086,140 | (288,649)
Cash flows from investing activities |  |
Additions to property, plant and equipment and construction in progress | (292,803) | (516,331)
Proceeds from asset dispositions | 41,500 | 450
Net cash used in investing activities | (251,303) | (9,015,881)
Cash flows from financing activities |  |
Dividends paid to common shareholders | (1,288,726) | (1,280,993)
Dividends paid to preferred shareholders | (2,641) | (2,869)
Dividends paid to non-controlling interests | (649,880) |
Repurchase of redeemable preferred stock | (7,513) | 0
Principal repayments on long-term debt | (10,632) | (3,496)
Net cash used in financing activities | (1,959,392) | (1,287,358)
Net decrease in cash and cash equivalents | (1,124,555) | (10,591,888)
Cash and cash equivalents at beginning of period | 43,794,150 | 42,071,083
Cash and cash equivalents at beginning of period - discontinued operations | 154,130 | 831,586
Less: cash and cash equivalents at end of period - discontinued operations | (41,198) | (820,275)
Cash and cash equivalents at end of period | 42,782,527 | 31,490,506
Interest paid in cash | 2,740 | 2,526
Non-cash transactions: |  |
Dividends declared but not paid | 1,296,877 | 1,290,058
Transfers from (to) inventory to (from) property, plant and equipment and construction in progress | 75,433 | (71,719)
Transfers from construction in progress to property, plant and equipment | 81,599 | 1,336,271
Right-of-use assets obtained in exchange for new operating lease liabilities | 1,716,789 | 16,383
Purchase of equipment through issuance of long-term debt | 58,220 | 122,292
Aerex |  |
Cash flows from investing activities |  |
Acquisition of noncontrolling interest in subsidiaries | $ 0 | $ (8,500,000)

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- Definition Amount of increase in right-of-use asset obtained in exchange for operating lease liability. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=121568110&loc=SL77918982-209971 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (g)(2) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980 + Details
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- Definition The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 + Details
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