Sale of Product Line (Details Textual) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
	Sep. 09, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Product Information [Line Items]
Sales Revenue, Goods, Net, Total		$ 10,246	$ 9,974	$ 18,105	$ 18,468
Disposal Group, Including Discontinued Operation, Assets, Current, Total	$ 188
Financial Guarantee Insurance Contracts, Unearned Premium Revenue, Total	1,016
Legal Fees	212
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal		$ 0	$ 0	$ 0	4,116
Proceeds from sale of intangible assets	2,750
Proceeds From Receipt Of Deferred Payment	375
Proceeds From Source Related To Escrow	375
Disposal Group, Including Discontinued Operation, Operating Income (Loss)					$ 179
Assets Purchase Agreement [Member]
Product Information [Line Items]
Sales Revenue, Goods, Net, Total	$ 3,500