Summary of Significant Accounting Policies (Narrative) (Details)	3 Months Ended		12 Months Ended
	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2019 USD ($) shares	Jun. 30, 2018 USD ($) shares	Jun. 30, 2017 USD ($)	Jul. 01, 2019 USD ($)
Summary Of Significant Accounting Policies [Line Items]
Revenues impacted included in modified transition method adjustment			$ 76,822,000	$ 84,693,000	$ 77,947,000
Timing for satisfying performance obligation in contract with customer			Delivery of all performance obligations in an order will typically occur over a three to 15-month period after the order is received.
Shares excluded from the computation of diluted EPS | shares			122,000	23,000
Cash and cash equivalents	$ 4,585,000	$ 5,830,000	$ 4,585,000	$ 5,830,000
Non-cash impairment loss related to definite-lived intangible assets	1,384,000
Non-cash goodwill impairment charge	(6,020,000)		(6,020,000)
Goodwill	$ 1,800,000	8,000,000.0	1,800,000	8,000,000.0
Total Comprehensive Income (Loss)			$ (7,774,000)	4,598,000	584,000
Net change in net cash provided by operating activities due to revision		$ 0		0
As Previously Reported [Member]
Summary Of Significant Accounting Policies [Line Items]
Revenues impacted included in modified transition method adjustment				84,693,000	77,947,000
Total Comprehensive Income (Loss)				$ 4,339,000	$ 331,000
Measurement Input Discount Rate [Member]
Summary Of Significant Accounting Policies [Line Items]
Discount rate used in annual valuation	0.160		0.160
Customer/Distributor Relationships [Member]
Summary Of Significant Accounting Policies [Line Items]
Amortization period			5 years
Trade Name [Member]
Summary Of Significant Accounting Policies [Line Items]
Amortization period			10 years
Software [Member]
Summary Of Significant Accounting Policies [Line Items]
Amortization period			5 years
Building [Member]
Summary Of Significant Accounting Policies [Line Items]
Property, plant and equipment, estimated useful lives			40 years
Other Current Assets [Member]
Summary Of Significant Accounting Policies [Line Items]
Capitalized commissions	$ 164,000		$ 164,000
Selling, General and Administrative Expenses [Member]
Summary Of Significant Accounting Policies [Line Items]
Commission expense recognized			969,000
Foreign Bank Accounts [Member]
Summary Of Significant Accounting Policies [Line Items]
Cash and cash equivalents	$ 3,808,000		$ 3,808,000
Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Delivery time of multi-element order			3 months
Accounts receivable maturity period			30 days
Minimum [Member] | Subsequent Event [Member]
Summary Of Significant Accounting Policies [Line Items]
ROU asset						$ 4,000,000.0
Lease liability						4,000,000.0
Minimum [Member] | Machinery and Equipment [Member]
Summary Of Significant Accounting Policies [Line Items]
Property, plant and equipment, estimated useful lives			3 years
Minimum [Member] | Furniture and Fixtures [Member]
Summary Of Significant Accounting Policies [Line Items]
Property, plant and equipment, estimated useful lives			3 years
Minimum [Member] | Building Improvements [Member]
Summary Of Significant Accounting Policies [Line Items]
Property, plant and equipment, estimated useful lives			10 years
Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Delivery time of multi-element order			15 months
Accounts receivable maturity period			60 days
Maximum [Member] | Subsequent Event [Member]
Summary Of Significant Accounting Policies [Line Items]
ROU asset						4,500,000
Lease liability						$ 4,500,000
Maximum [Member] | Machinery and Equipment [Member]
Summary Of Significant Accounting Policies [Line Items]
Property, plant and equipment, estimated useful lives			15 years
Maximum [Member] | Furniture and Fixtures [Member]
Summary Of Significant Accounting Policies [Line Items]
Property, plant and equipment, estimated useful lives			15 years
Maximum [Member] | Building Improvements [Member]
Summary Of Significant Accounting Policies [Line Items]
Property, plant and equipment, estimated useful lives			15 years
ASC 606 [Member]
Summary Of Significant Accounting Policies [Line Items]
Net impact on retained earnings (deficit)			$ 2,049,000
Measurement Solutions and Value Added Services [Member] | ASC 606 [Member]
Summary Of Significant Accounting Policies [Line Items]
Revenues impacted included in modified transition method adjustment			$ 3,800,000
In-Line And Near-Line Measurement Solutions [Member] | Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Standard product warranty period			1 year
In-Line And Near-Line Measurement Solutions [Member] | Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Standard product warranty period			3 years
Labor And Travel Related [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
Off-Line Measurement Solutions [Member] | Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Standard product warranty period			12 months
Off-Line Measurement Solutions [Member] | Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Standard product warranty period			15 months