Subsequent Events (Details) (IberiaBank [Member], Line of Credit [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Subsequent Event [Line Items]
Line of Credit Facility, Affiliated Borrower		Hyperspring, LLC
Principal amount of the line of credit		$ 1.0
Expiration date of credit agreement		Jun. 30, 2015
Line of credit facility term		0 years 5 months 9 days
Line of Credit Facility, Interest Rate Description	interest is payable monthly at a rate of the prime rate of interest as published in the money rate section of the Wall Street Journal plus 1.00 %
Line of Credit Facility, Interest Rate During Period	4.25%
Line of Credit Facility, Collateral	The line is secured by all accounts and guaranteed by GSE Systems, Inc.
Subsequent Event [Member]
Subsequent Event [Line Items]
Subsequent Event, Date	Jan. 22, 2015
Line of Credit Facility, Affiliated Borrower	Hyperspring, LLC
Principal amount of the line of credit	$ 1.0
Expiration date of credit agreement	Jun. 30, 2015
Line of credit facility term	0 years 5 months 9 days
Line of Credit Facility, Interest Rate Description	interest is payable monthly at a rate of the prime rate of interest as published in the money rate section of the Wall Street Journal plus 1.00 %
Line of Credit Facility, Interest Rate During Period	4.25%
Line of Credit Facility, Collateral	The line is secured by all accounts and guaranteed by GSE Systems, Inc.