Revenue from Contracts with Customers (Summary of Cumulative Effect of Changes to Unaudited Consolidated Balance Sheet) (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Jul. 01, 2018	Jun. 30, 2018	Jun. 30, 2017
Current Assets
Cash and cash equivalents	$ 4,585		$ 5,830
Short-term investments	1,431		877
Receivables:
Billed receivables, net	27,449		31,797
Unbilled receivables, net	5,394	$ 1,864
Other receivables	200		346
Inventories, net	10,810		13,829
Other current assets	1,529		1,327
Total current assets	51,398		54,006
Property and Equipment, Net	6,538		6,613
Goodwill	1,741		7,985	$ 7,793
Intangible assets, Net	1,816		3,820
Long-Term Investment	725		725
Long-Term Deferred Income Tax Assets	620		1,055
Total Assets	62,838		74,204	70,615
Current Liabilities
Line of credit and short-term notes payable			175
Accounts payable	7,397		7,592
Accrued liabilities and expenses	3,609		3,517
Accrued compensation	1,646		3,155
Current portion of taxes payable	320		526
Income taxes payable	536		768
Reserves for restructuring and other charges	44		675
Deferred revenue	6,649	7,454	9,430
Total current liabilities	20,201		25,838	28,155
Long-Term Taxes Payable	114		450
Long-Term Deferred Income Tax Liability	41		638	51
Other Long-Term Liabilities	556		601
Total Liabilities	20,912		27,527	29,960
Shareholders' Equity
Preferred stock, no par value, authorized 1,000 shares, issued none	0		0	0
Common stock	97		96	94
Accumulated other comprehensive loss	(3,079)		(2,096)	(2,721)
Additional paid-in capital	49,083		48,110	46,688
Retained deficit	(4,175)		567	(3,406)
Total shareholders' equity	41,926		46,677	40,655
Total Liabilities and Shareholders' Equity	62,838		74,204	$ 70,615
ASC 606 [Member]
Receivables:
Unbilled receivables, net		1,864
Inventories, net		12,479
Other current assets		1,376
Current Liabilities
Deferred revenue		7,454
Long-Term Deferred Income Tax Liability		1,128
Shareholders' Equity
Retained deficit		$ 2,616
ASC 606 Adjustments [Member] | ASC 606 [Member]
Receivables:
Unbilled receivables, net	(5,394)		1,864
Inventories, net	3,970		(1,350)
Other current assets	(165)		49
Total current assets	(1,589)
Long-Term Deferred Income Tax Assets	333
Total Assets	(1,256)
Current Liabilities
Deferred revenue	2,489		(1,976)
Total current liabilities	2,489
Long-Term Deferred Income Tax Liability			490
Total Liabilities	2,489
Shareholders' Equity
Preferred stock, no par value, authorized 1,000 shares, issued none	0
Retained deficit	(3,745)		$ 2,049
Total shareholders' equity	(3,745)
Total Liabilities and Shareholders' Equity	(1,256)
Balances Without Adoption of ASC 606 [Member] | ASC 606 [Member]
Current Assets
Cash and cash equivalents	4,585
Short-term investments	1,431
Receivables:
Billed receivables, net	27,449
Other receivables	200
Inventories, net	14,780
Other current assets	1,364
Total current assets	49,809
Property and Equipment, Net	6,538
Goodwill	1,741
Intangible assets, Net	1,816
Long-Term Investment	725
Long-Term Deferred Income Tax Assets	953
Total Assets	61,582
Current Liabilities
Accounts payable	7,397
Accrued liabilities and expenses	3,609
Accrued compensation	1,646
Current portion of taxes payable	320
Income taxes payable	536
Reserves for restructuring and other charges	44
Deferred revenue	9,138
Total current liabilities	22,690
Long-Term Taxes Payable	114
Long-Term Deferred Income Tax Liability	41
Other Long-Term Liabilities	556
Total Liabilities	23,401
Shareholders' Equity
Preferred stock, no par value, authorized 1,000 shares, issued none	0
Common stock	97
Accumulated other comprehensive loss	(3,079)
Additional paid-in capital	49,083
Retained deficit	(7,920)
Total shareholders' equity	38,181
Total Liabilities and Shareholders' Equity	$ 61,582