Consolidated Statements of Cash Flows (Parenthetical) - USD ($)	Sep. 30, 2019	Dec. 31, 2018	Sep. 30, 2018	[1]	Dec. 31, 2017	[1]
Reconciliation of cash and cash equivalents and restricted cash per consolidated balance sheets to statements of cash flows
Cash and cash equivalents	$ 6,194,964	$ 6,451,758	$ 11,511,112
Restricted cash	0	750,000	750,000
Total cash, cash equivalents and restricted cash per statements of cash flows	$ 6,194,964	$ 7,201,758	$ 12,261,112		$ 2,172,985

[1] *     In accordance with ASC Subtopic 80550 "Transactions between entities under common control", results of operations for the 2018 period have been retrospectively adjusted for the acquisition of A Plus on December 28, 2018 to furnish comparative information as required. The effects of intra-entity transactions have been eliminated as a part of the consolidation, where applicable.