Related Party Transactions - Additional Information (Detail) - USD ($)
$ in Thousands |
|
12 Months Ended |
Feb. 12, 2014 |
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
| Research and Development Expense [Member] |
|
|
|
|
| Related Party Transaction [Line Items] |
|
|
|
|
| Fair value of shares issued |
|
|
$ 1,665
|
|
| Research and Development Expense [Member] | Common Stock [Member] |
|
|
|
|
| Related Party Transaction [Line Items] |
|
|
|
|
| Common stock, shares issued |
|
|
189,393
|
|
| General and Administrative Expense [Member] |
|
|
|
|
| Related Party Transaction [Line Items] |
|
|
|
|
| Fair value of shares issued |
|
|
$ 699
|
|
| General and Administrative Expense [Member] | Common Stock [Member] |
|
|
|
|
| Related Party Transaction [Line Items] |
|
|
|
|
| Common stock, shares issued |
|
|
79,545
|
|
| Incept [Member] | Common Stock [Member] |
|
|
|
|
| Related Party Transaction [Line Items] |
|
|
|
|
| Common stock, shares issued |
189,393
|
|
|
|
| Incept [Member] | Research and Development Expense [Member] | Common Stock [Member] |
|
|
|
|
| Related Party Transaction [Line Items] |
|
|
|
|
| Common stock, shares issued |
189,393
|
|
|
|
| Fair value of shares issued |
$ 1,665
|
|
|
|
| Incept [Member] | General and Administrative Expense [Member] | Common Stock [Member] | Former Board of Director [Member] |
|
|
|
|
| Related Party Transaction [Line Items] |
|
|
|
|
| Common stock, shares issued |
79,545
|
|
|
|
| Fair value of shares issued |
$ 699
|
|
|
|
| Receivables [Member] | Augmenix, Inc. [Member] | Consulting and Other Services [Member] |
|
|
|
|
| Related Party Transaction [Line Items] |
|
|
|
|
| Invoiced for consulting and other services |
|
$ 4
|
$ 82
|
$ 232
|
| Payables [Member] | Legal Fees [Member] |
|
|
|
|
| Related Party Transaction [Line Items] |
|
|
|
|
| Invoiced for consulting and other services |
|
0
|
27
|
0
|
| Payables [Member] | Consultant Fees [Member] |
|
|
|
|
| Related Party Transaction [Line Items] |
|
|
|
|
| Invoiced for consulting and other services |
|
$ 0
|
$ 0
|
$ 14
|