Concentration of Risk (Details Textual) - USD ($)	3 Months Ended								12 Months Ended
	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Concentration Risk [Line Items]
Revenues, Total	$ 17,443,000	$ 15,456,000	$ 14,899,000	$ 13,351,000	$ 13,813,000	$ 17,110,000	$ 15,996,000	$ 17,540,000	$ 61,149,000	$ 64,459,000	$ 71,171,000
Government Contracts Concentration Risk [Member]
Concentration Risk [Line Items]
Revenues, Total									$ 9,748	$ 12,001	$ 10,072
Government Contracts Concentration Risk [Member] | Sales Revenue, Net [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage									16.00%	19.00%	14.00%
International Sales [Member]
Concentration Risk [Line Items]
Revenues, Total									$ 24,452	$ 29,746	$ 30,178
International Sales [Member] | Sales Revenue, Net [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage									40.00%	46.00%	42.00%