Revenue from Contracts with Customers (Details) - USD ($)	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Revenues	$ 20,650,843	$ 39,665,356
Carrier Services
Revenues	11,348,872	28,143,269
Managed Services
Revenues	$ 9,301,971	$ 11,522,087

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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+ Details