Revenue Recognition and Contracts with Customers (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Major Product Lines:
Equipment Revenues	$ 20,685	$ 18,269	$ 40,275	$ 36,855
Services	4,144	2,843	7,930	5,431
Total Revenues	24,829	21,112	48,205	42,286
Intrusion and Access alarm products [Member]
Major Product Lines:
Equipment Revenues	7,724	6,633	14,815	13,122
Door locking devices [Member]
Major Product Lines:
Equipment Revenues	$ 12,961	$ 11,636	$ 25,460	$ 23,733