Summary of Significant Accounting Policies (Narrative) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Summary of Significant Accounting Policies [Line Items]
Shares excluded from the computation of diluted EPS	196,000	988,000	909,000
Cash and cash equivalents	$ 23,070	$ 13,364	$ 12,984	$ 12,105
Short-term investments	10,822	13,321
Advertising expense	35	53	13
Restricted Cash	520	772
Measurement Solutions Labor And Related Travel [Member]
Summary of Significant Accounting Policies [Line Items]
Standard product warranty period	1 year
TriCam Sensors [Member]
Summary of Significant Accounting Policies [Line Items]
Standard product warranty period	3 years
ScanWorks [Member]
Summary of Significant Accounting Policies [Line Items]
Standard product warranty period	1 year
WheelWorks [Member]
Summary of Significant Accounting Policies [Line Items]
Standard product warranty period	2 years
Foreign Bank Accounts [Member]
Summary of Significant Accounting Policies [Line Items]
Cash and cash equivalents	14,600
Minimum [Member]
Summary of Significant Accounting Policies [Line Items]
Delivery time of multi-element order, months	3 months
Accounts receivable maturity period	30 days
Minimum [Member] | Measurement Solutions Products [Member]
Summary of Significant Accounting Policies [Line Items]
Standard product warranty period	2 years
Maximum [Member]
Summary of Significant Accounting Policies [Line Items]
Delivery time of multi-element order, months	15 months
Accounts receivable maturity period	60 days
Maximum [Member] | Measurement Solutions Products [Member]
Summary of Significant Accounting Policies [Line Items]
Standard product warranty period	3 years
Building [Member]
Summary of Significant Accounting Policies [Line Items]
Property, plant and equipment, estimated useful lives	40 years
Machinery and Equipment [Member] | Minimum [Member]
Summary of Significant Accounting Policies [Line Items]
Property, plant and equipment, estimated useful lives	3 years
Machinery and Equipment [Member] | Maximum [Member]
Summary of Significant Accounting Policies [Line Items]
Property, plant and equipment, estimated useful lives	15 years
Furniture and Fixtures [Member] | Minimum [Member]
Summary of Significant Accounting Policies [Line Items]
Property, plant and equipment, estimated useful lives	3 years
Furniture and Fixtures [Member] | Maximum [Member]
Summary of Significant Accounting Policies [Line Items]
Property, plant and equipment, estimated useful lives	15 years
Mutual Funds [Member]
Summary of Significant Accounting Policies [Line Items]
Short-term investments	96	25
Bank Time Deposits [Member]
Summary of Significant Accounting Policies [Line Items]
Short-term investments	9,165	9,581
Variable Rate Demand Obligation [Member]
Summary of Significant Accounting Policies [Line Items]
Short-term investments	1,325	1,715
Repurchase Agreements [Member]
Summary of Significant Accounting Policies [Line Items]
Short-term investments	$ 236	$ 2,000