Accrued Compensation and related expenses (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Accrued Compensation and related expenses [Abstract]
Accrued payroll and related taxes	$ 729	$ 1,010
Accrued vacation	340	262
Accrued commissions and bonus	1,619	1,222
Total accrued compensation and related expense	$ 2,688	$ 2,494	[1]

[1] Restated