Subordinated Debt (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended	12 Months Ended
	Jun. 30, 2012	Dec. 31, 2011
Subordinated Debt
Total subordinated debt	$ 23,702	$ 23,702
Subordinated debentures | Heritage Capital Trust I
Subordinated Debt
Interest rate (as a percent)	10.875%	10.875%
Total subordinated debt	7,217	7,217
Subordinated debentures | Heritage Statutory Trust I
Subordinated Debt
Interest rate (as a percent)	10.60%	10.60%
Total subordinated debt	7,206	7,206
Subordinated debentures | Heritage Statutory Trust II
Subordinated Debt
Interest rate at June 30, 2012 (as a percent)	4.04%
Total subordinated debt	5,155	5,155
Variable rate basis	3-month Libor	3-month Libor
Interest rate margin (as a percent)	3.58%	3.58%
Subordinated debentures | Heritage Statutory Trust III
Subordinated Debt
Interest rate at June 30, 2012 (as a percent)	3.86%
Total subordinated debt	$ 4,124	$ 4,124
Variable rate basis	3-month Libor	3-month Libor
Interest rate margin (as a percent)	3.40%	3.40%