Fair Value (Details 3) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Assets:
Marketable Securities	$ 3,536	$ 6,795
Liabilities:
Redeemable warrants	2,514
Recurring Basis [Member]
Assets:
Marketable Securities	3,536	6,795
Liabilities:
Redeemable warrants	2,514
Recurring Basis [Member] | Level 1 [Member]
Assets:
Marketable Securities	3,536	6,795
Liabilities:
Redeemable warrants
Recurring Basis [Member] | Level 2 [Member]
Assets:
Marketable Securities
Liabilities:
Redeemable warrants
Recurring Basis [Member] | Level 3 [Member]
Assets:
Marketable Securities
Liabilities:
Redeemable warrants	$ 2,514