Accrued Expenses and Other Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Accrued Expenses, Current [Abstract]
Accrued compensation	$ 404	$ 755
Accrued severance costs	136	306
Accrued communication costs	420	328
Accrued professional fees	140	138
Accrued lease termination	203	0
Other accrued expenses	306	390
Deferred revenue	137	197
Customer deposits	436	163
Accrued expenses and other liabilities	$ 2,182	$ 2,277