Goodwill and Identifiable Intangible Assets (Details) (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2012
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Goodwill	$ 3,500,000	$ 3,500,000
Identifiable Intangible Asset	1,900,000	1,900,000
Transfer of goodwill from one subsidiary to another	213,000
G S I [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Goodwill	3,300,000	3,300,000
G. distributors [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Goodwill	$ 200,000	$ 200,000