Commitments And Contingencies (Details)	1 Months Ended	3 Months Ended
	Jan. 31, 2017 USD ($) ft² $ / ft²	Mar. 31, 2017 USD ($)	Mar. 31, 2016 USD ($)	Dec. 31, 2016 USD ($)
Commitments and Contingencies [Line Items]
Lease expiration date		Jun. 30, 2017
Operating lease, monthly expense		$ 21,000
Area Of Lease | ft²	15,697
Lease term	62 months
Rent expense per month		64,000	$ 49,000
Security deposit	$ 101,000
Lease renewable term	5 years
Lease obligations, less than one year				$ 300,000
Lease obligations, one to three years				1,100,000
Lease obligations,three to five years				1,100,000
Lease obligations, more than five years				$ 300,000
Rent expense, including common area maintenance charges		$ 64,000	$ 49,000
Tier One Rent Expense First Two Months Of Lease Term [Member]
Commitments and Contingencies [Line Items]
Operating lease, monthly expense	$ 42,400
Tier Two Rent Expense [Member]
Commitments and Contingencies [Line Items]
Operating lease, monthly expense	$ 50,300
Landlord [Member]
Commitments and Contingencies [Line Items]
Landlord obligatory improvement allowance per rentable square foot | $ / ft²	135.00