Gladstone Commercial Corporation Quarterly report pursuant to Section 13 or 15(d)

Real Estate and Intangible Assets (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Schedule of properties acquired
Total Purchase Price	$ 5,650	$ 10,775
Annualized Straight Line Rent	826	354
Egg Harbor Township, NJ [Member]
Schedule of properties acquired
Acquisition Date	Mar. 28, 2013
Square Footage	29,257
Lease Term	10 years
Total Purchase Price	5,650
Acquisition Expenses	149
Annualized Straight Line Rent	490
Debt Issued	3,700
Egg Harbor Township, NJ [Member] \| Maximum [Member]
Schedule of properties acquired
Renewal Options	5 years
Egg Harbor Township, NJ [Member] \| Minimum [Member]
Schedule of properties acquired
Renewal Options	1 year
Ashburn, VA [Member]
Schedule of properties acquired
Acquisition Date		Jan. 25, 2012
Square Footage		52,130
Lease Term		15 years
Total Purchase Price		10,775
Acquisition Expenses		96
Annualized Straight Line Rent		$ 989
Ashburn, VA [Member] \| Maximum [Member]
Schedule of properties acquired
Renewal Options		5 years
Ashburn, VA [Member] \| Minimum [Member]
Schedule of properties acquired
Renewal Options		2 years