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

Quarterly report pursuant to Section 13 or 15(d)

Mortgage Notes Payable and Line of Credit (Details)

Mortgage Notes Payable and Line of Credit (Details) (USD $) In Thousands, unless otherwise specified			3 Months Ended		3 Months Ended		3 Months Ended		3 Months Ended		3 Months Ended		3 Months Ended		3 Months Ended		3 Months Ended		3 Months Ended		3 Months Ended		3 Months Ended		3 Months Ended		3 Months Ended		3 Months Ended		3 Months Ended		3 Months Ended		3 Months Ended		3 Months Ended		3 Months Ended		3 Months Ended		3 Months Ended		3 Months Ended		3 Months Ended		3 Months Ended		3 Months Ended		3 Months Ended			3 Months Ended		3 Months Ended		3 Months Ended		3 Months Ended				3 Months Ended
	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2013 Mortgage Notes Payable One [Member]	Dec. 31, 2012 Mortgage Notes Payable One [Member]	Mar. 31, 2013 Mortgage Notes Payable Two [Member]	Dec. 31, 2012 Mortgage Notes Payable Two [Member]	Mar. 31, 2013 Mortgage Notes Payable Three [Member]	Dec. 31, 2012 Mortgage Notes Payable Three [Member]	Mar. 31, 2013 Mortgage Notes Payable Four [Member]	Dec. 31, 2012 Mortgage Notes Payable Four [Member]	Mar. 31, 2013 Mortgage Notes Payable Five [Member]	Dec. 31, 2012 Mortgage Notes Payable Five [Member]	Mar. 31, 2013 Mortgage Notes Payable Six [Member]	Dec. 31, 2012 Mortgage Notes Payable Six [Member]	Mar. 31, 2013 Mortgage Notes Payable Seven [Member]	Dec. 31, 2012 Mortgage Notes Payable Seven [Member]	Mar. 31, 2013 Mortgage Notes Payable Eight [Member]	Dec. 31, 2012 Mortgage Notes Payable Eight [Member]	Mar. 31, 2013 Mortgage Notes Payable Nine [Member]	Dec. 31, 2012 Mortgage Notes Payable Nine [Member]	Mar. 31, 2013 Mortgage Notes Payable Ten [Member]	Dec. 31, 2012 Mortgage Notes Payable Ten [Member]	Mar. 31, 2013 Mortgage Notes Payable Eleven [Member]	Dec. 31, 2012 Mortgage Notes Payable Eleven [Member]	Mar. 31, 2013 Mortgage Notes Payable Twelve [Member]	Dec. 31, 2012 Mortgage Notes Payable Twelve [Member]	Mar. 31, 2013 Mortgage Notes Payable Thirteen [Member]	Dec. 31, 2012 Mortgage Notes Payable Thirteen [Member]	Mar. 31, 2013 Mortgage Notes Payable Fourteen [Member]	Dec. 31, 2012 Mortgage Notes Payable Fourteen [Member]	Mar. 31, 2013 Mortgage Notes Payable Fifteen [Member]	Dec. 31, 2012 Mortgage Notes Payable Fifteen [Member]	Mar. 31, 2013 Mortgage Notes Payable Sixteen [Member]	Dec. 31, 2012 Mortgage Notes Payable Sixteen [Member]	Mar. 31, 2013 Mortgage Notes Payable Seventeen [Member]	Dec. 31, 2012 Mortgage Notes Payable Seventeen [Member]	Mar. 31, 2013 Mortgage Notes Payable Eighteen [Member]	Dec. 31, 2012 Mortgage Notes Payable Eighteen [Member]	Mar. 31, 2013 Mortgage Notes Payable Nineteen [Member]	Dec. 31, 2012 Mortgage Notes Payable Nineteen [Member]	Mar. 31, 2013 Mortgage Notes Payable Twenty [Member]	Dec. 31, 2012 Mortgage Notes Payable Twenty [Member]	Mar. 31, 2013 Mortgage Notes Payable Twenty One [Member]	Dec. 31, 2012 Mortgage Notes Payable Twenty One [Member]	Mar. 31, 2013 Mortgage Notes Payable Twenty Two [Member]	Dec. 31, 2012 Mortgage Notes Payable Twenty Two [Member]	Mar. 31, 2013 Mortgage Notes Payable Twenty Three [Member]	Dec. 31, 2012 Mortgage Notes Payable Twenty Three [Member]	Mar. 31, 2013 Mortgage Notes Payable Twenty Four [Member]	Dec. 31, 2012 Mortgage Notes Payable Twenty Four [Member]	Mar. 31, 2013 Mortgage Notes Payable Twenty Five [Member]	Dec. 31, 2012 Mortgage Notes Payable Twenty Five [Member]	Mar. 31, 2013 Mortgage Notes Payable Twenty Six [Member]	Mar. 31, 2013 Mortgage Notes Payable Twenty Seven [Member]	Dec. 31, 2012 Mortgage Notes Payable Twenty Seven [Member]	Mar. 31, 2013 Mortgage Notes Payable Twenty Eight [Member]	Dec. 31, 2012 Mortgage Notes Payable Twenty Eight [Member]	Mar. 31, 2013 Mortgage Notes Payable Twenty Nine [Member]	Dec. 31, 2012 Mortgage Notes Payable Twenty Nine [Member]	Mar. 31, 2013 Mortgage Notes Payable Thirty [Member]	Dec. 31, 2012 Mortgage Notes Payable Thirty [Member]	Mar. 31, 2013 Mortgage Notes Payable Thirty One [Member]	Mar. 31, 2012 Mortgage Notes Payable Thirty One [Member]	Mar. 31, 2013 Mortgage Notes Payable [Member]	Dec. 31, 2012 Mortgage Notes Payable [Member]	Mar. 31, 2013 Variable-Rate Line of Credit [Member]	Dec. 31, 2012 Variable-Rate Line of Credit [Member]
Company's mortgage notes payable and line of credit
Date of Issuance/ Assumption			Feb. 21, 2006		Feb. 21, 2006		Aug. 25, 2005		Sep. 12, 2005		Sep. 06, 2007		Dec. 21, 2005		Mar. 29, 2006		Apr. 27, 2006		Aug. 29, 2008		Jun. 20, 2011		Nov. 22, 2006		Dec. 22, 2006		Feb. 08, 2007		Jun. 05, 2007		Oct. 15, 2007		Sep. 26, 2012		Nov. 18, 2011		Dec. 06, 2011		Oct. 28, 2011		Apr. 05, 2012		Jun. 21, 2012		Aug. 03, 2012		Jul. 24, 2012		Oct. 01, 2012		Nov. 21, 2012		Mar. 28, 2013	Dec. 15, 2010		May 16, 2012		Nov. 08, 2012		May 30, 2012		Jun. 27, 2012				Dec. 28, 2010
Principal Maturity Date			Dec. 01, 2013		Jun. 30, 2014		Sep. 01, 2015		Sep. 01, 2015		Dec. 11, 2015		Jan. 08, 2016		Apr. 01, 2016		May 05, 2016		Jun. 01, 2016		Jun. 30, 2016		Dec. 01, 2016		Jan. 01, 2017		Mar. 01, 2017		Jun. 08, 2017		Nov. 08, 2017		Jul. 01, 2018		Nov. 01, 2018		Dec. 06, 2019		Nov. 01, 2021		May 01, 2022		Jul. 06, 2022		Jul. 31, 2022		Aug. 01, 2022		Oct. 01, 2022		Dec. 06, 2022		Apr. 06, 2023	Dec. 10, 2026		Dec. 31, 2026		Feb. 01, 2027		May 10, 2027		Jul. 01, 2029				Dec. 28, 2013
Stated Interest Rate on Note			5.91%		5.20%		5.33%		5.21%		5.81%		5.71%		5.92%		6.58%		6.80%		6.08%		5.76%		5.79%		6.00%		6.11%		6.63%		5.75%		4.50%		6.00%		6.00%		6.10%		5.05%		5.00%		5.60%		4.86%		4.04%		4.16%	6.63%		4.30%		5.69%		6.50%		5.10%
Principal Balance Outstanding			$ 8,608	$ 8,658	$ 17,819	$ 17,930	$ 19,978	$ 20,074	$ 11,767	$ 11,821	$ 4,120	$ 4,141	$ 18,075	$ 18,155	$ 16,612	$ 16,669	$ 12,991	$ 13,080	$ 5,826	$ 5,866	$ 11,296	$ 11,341	$ 13,503	$ 13,558	$ 20,647	$ 20,731	$ 13,775	$ 13,775	$ 14,120	$ 14,163	$ 15,014	$ 15,072	$ 10,653	$ 10,707	$ 4,231	$ 4,256	$ 8,209	$ 8,272	$ 7,035	$ 7,068	$ 18,737	$ 18,821	$ 4,688	$ 4,712	$ 2,963	$ 2,979	$ 9,592	$ 9,661	$ 33,710	$ 33,888	$ 18,889	$ 19,000	$ 3,700	$ 9,874	$ 9,983	$ 2,879	$ 2,897	$ 14,076	$ 14,145	$ 4,831	$ 4,883	$ 1,964	$ 1,984	$ 360,182	$ 358,290
Premiums and (Discounts), net:	853	895
Total Fixed-Rate Mortgage Notes Payable:	361,035	359,185
Variable-Rate Line of Credit, Stated Interest Rate																																																																		LIBOR +2.75%
Variable-Rate Line of Credit:	26,400	25,000																																																																26,400	25,000
Total Mortgage Notes Payable and Line of Credit	$ 387,435	$ 384,185