Revenue Recognition and Contracts with Customers (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019
Disaggregation of Revenue [Abstract]
Equipment revenues	$ 20,007	$ 20,597	$ 60,973	$ 60,872
Services	6,232	4,546	17,380	12,476
Total Revenues	26,239	25,143	78,353	73,348
Intrusion and Access alarm products [Member]
Disaggregation of Revenue [Abstract]
Equipment revenues	8,409	8,113	24,163	22,928
Door locking devices [Member]
Disaggregation of Revenue [Abstract]
Equipment revenues	$ 11,598	$ 12,484	$ 36,810	$ 37,944