Multiple-Deliverable Revenue Arrangements (Detail Textuals) (Contractual Arrangements, Maintenance and other support obligations, USD $)	3 Months Ended	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2013	Dec. 31, 2012
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Deferred revenue in the condensed consolidated balance sheets	$ 488,000	$ 488,000	$ 560,000
Revenue recognized related to transaction	$ 36,000	$ 72,000
Minimum
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Expiration period of maintenance and other support obligations		12 months
Maximum
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Expiration period of maintenance and other support obligations		30 months