XML 106 R90.htm IDEA: XBRL DOCUMENT v3.7.0.1
Stockholders' Equity/(Deficit) - Summary of Stock Option Activity (Detail) - $ / shares
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Equity [Abstract]      
Number of Shares, Outstanding, Beginning 375,283 307,791 249,656
Number of Shares, Granted 22,493 137,667 85,524
Number of Shares, Exercised 0 0 0
Number of Shares, Cancelled (65,361) (70,174) (27,390)
Number of Shares, Outstanding, Ending 332,415 375,283 307,791
Weighted Average Exercise Price Outstanding, Beginning $ 32.04 $ 32.04 $ 39.72
Number of Shares, Options exercisable 300,751 275,735 221,109
Weighted Average Exercise Price, Granted $ 2.74 $ 12.48 $ 25.68
Weighted Average Exercise Price, Exercised 0 0 0
Weighted Average Exercise Price, Cancelled 32.82 32.88 41.76
Weighted Average Exercise Price, Outstanding, Ending 21.55 32.04 32.04
Weighted Average Exercise Price, Options exercisable $ 22.30 $ 27.48 $ 33.24