Quarterly report pursuant to Section 13 or 15(d)

Note 9 - Stockholders' Equity - Additional Information (Detail)

v3.7.0.1
Note 9 - Stockholders' Equity - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended 12 Months Ended
Nov. 30, 2016
Mar. 31, 2017
Dec. 31, 2016
Nov. 07, 2016
Treasury Stock, shares   875,621 875,621  
Warrants vested   58,255    
I N I [Member]        
Capstone settlement warrants     1,289,378  
Capstone settlement warrants exercise price       $ 1.83
Capstone settlement warrants fair value       $ 1,800
Expected term (in years) 4 years      
Fair value of warrants, assumption, risk free interest rate 1.27%      
Fair value of warrants, assumption, dividend yield 0.00%      
Fair value of warrants, assumption, expected volatility 118.40%