Acquisitions (Details) (Envision [Member], USD $) In Thousands, unless otherwise specified	Jun. 30, 2012
Tangible assets:
Accounts receivable	$ 300
Fixed assets	129
Total current assets	429
Summary of other intangible assets
Total intangible assets	1,024
Total assets	1,453
Accrued liabilities	3
Net assets acquired	1,450
Customer relationships [Member]
Summary of other intangible assets
Intangible assets, net	500
Trade names [Member]
Summary of other intangible assets
Intangible assets, net	126
Backlog [Member]
Summary of other intangible assets
Intangible assets, net	20
Non-compete [Member]
Summary of other intangible assets
Intangible assets, net	217
Goodwill [Member]
Summary of other intangible assets
Goodwill	$ 161