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Subsequent Events	12 Months Ended
	Dec. 31, 2020
Subsequent Events [Abstract]
Subsequent Events	16.  Subsequent Events A total of 857,500 warrants, totaling approximately $4.3 million, issued in connection with the April 2020 financing, were exercised after December 31, 2020. Including the 901,000 warrants exercised during 2020, the aggregate exercise proceeds total approximately $8.8 million. On December 11, 2020, the Board of Directors declared a quarterly cash dividend in the amount of $0.15 per share on the Company’s Preferred Stock. The cash dividend was paid on February 1, 2021 to the holders of record of the Preferred Stock as of the close of business on January 15, 2021.

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- Definition

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI http://asc.fasb.org/topic&trid=2122774

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