Commitments and Contingencies (Narrative) (Details) - USD ($)	3 Months Ended		12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Dec. 31, 2016	Dec. 31, 2015	Oct. 31, 2017	Jul. 31, 2017	Jan. 31, 2017	Dec. 31, 2014
Rent expense under operating leases			$ 227,000	$ 192,000
Minimum payment commitment	$ 105,000		105,000
NRM VII Holdings [Member]
Cash paid for legal settlement	2,000,000
Payments of accrued dividends		$ 914,000
Total payable to insurance carrier	914,000		914,000
Remaining balance of note payable	803,000		803,000
Payment of note payable	100,000		100,000
NRM VII Holdings [Member] | Scenario, Forecast [Member]
Payment of note payable					$ 305,000	$ 305,000
NRM VII Holdings [Member] | Subsequent Event [Member]
Payment of note payable							$ 205,000
Virginia Biotech Research Partnership Laboratory [Member]
Minimum payment commitment	14,000		14,000	14,000
Savills Studley San Diego Office Space [Member]
Minimum payment commitment	6,000		6,000	6,000
Avtotehna [Member]
Minimum payment commitment	$ 81,000		$ 81,000	81,000
Lease expiration date			Feb. 01, 2019
Monthly rental expense			$ 3,128	$ 3,128
Leasehold improvements								$ 185,000