Subsequent Events (Details Narrative) - USD ($)				3 Months Ended						9 Months Ended
	Oct. 20, 2020	Oct. 16, 2020	Oct. 07, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2020	Sep. 30, 2019	Aug. 18, 2020	Dec. 31, 2019
Number of common stock shares issues
Number of common stock shares issues, value				$ 13,088,000	$ 6,185,000	$ 4,054,000	$ 162,000	$ 4,887,000	$ 638,000
Common stock, par value				$ 0.02						$ 0.02			$ .02
Share based upon a liquidation value				$ 47,000,000						$ 47,000,000			$ 47,000,000
Series A Convertible Preferred Stock [Member]
Share based upon a liquidation value												$ 1,000
Subsequent Event [Member]
Common stock, par value	$ 0.02
Share exchange agreement description	The purpose of the meeting is to (1.) To elect eight director nominees to the Company's Board of Directors to hold office until the next Annual Meeting of Stockholders; (2.) To ratify Freed Maxick CPAs, P.C. as the Company's independent registered public accounting firm for the fiscal year ending December 31, 2020; (3.) To provide an advisory vote on executive compensation; (4.) To approve, pursuant to Rule 713 of the NYSE American, the potential issuance of shares of the Corporation's common stock, par value $0.02 per share representing equal to or greater than 20% but not more than 50.99% of presently outstanding stock, issuable upon conversion of our Series A Convertible Preferred Stock, issued by the Company to Global BioMedical Pte. Ltd on August 21, 2020 in accordance with the Share Exchange Agreement dated April 27, 2020, by increasing the beneficial ownership limitation of the Series A Convertible Preferred Stock; and (5.) To approve the reincorporation of the Company from New York to Texas, pursuant to a merger of the Company with and into a newly-formed Texas corporation that will initially be a wholly-owned subsidiary of the Company, resulting in a change in name of the Company from "Document Security Systems, Inc." to "Alset, Inc."
Subsequent Event [Member] | Presidio Property Trust, Inc. [Member] | IPO [Member]
Number of common stock shares issues			200,000
Share price per share			$ 5.00
Number of common stock shares issues, value			$ 1,000,000
Subsequent Event [Member] | Global BioMedical Pte Ltd [Member] | Series A Convertible Preferred Stock [Member]
Number of converted shares		4,293
Common stock, par value		$ 0.02
Number of restricted shares of common shares		662,500
Share based upon a liquidation value		$ 1,000
Conversion price		$ 6.48