Quarterly report pursuant to Section 13 or 15(d)

Equity Incentive Plan (Details)

v3.4.0.3
Equity Incentive Plan (Details) - Equity Incentive Plan 2014 [Member] - $ / shares
 3 Months Ended 12 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Dec. 31, 2015
Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of Options, Outstanding beginning of year 1,277,367 752,372 752,372  
Number of Options, Granted 210,525 435,393    
Number of Options, Exercised 0 (23,075)    
Number of Options, Expired 0 (8,600)    
Number of Options, Outstanding at end of period 1,487,892 1,156,090 1,277,367 752,372
Number of Options, Exercisable at end of period 975,881 827,529    
Number of Options, Vested and expected to vest at end of period 975,881 827,529    
Weighted- Average Exercise Price, Outstanding at beginning of year $ 2.75 $ 0.91 $ 0.91  
Weighted- Average Exercise Price, Granted 2.91 5.8    
Weighted- Average Exercise Price, Exercised 0 0.65    
Weighted- Average Exercise Price, Expired 0 0.65    
Weighted- Average Exercise Price, Outstanding at end of period 2.80 2.69 $ 2.75 $ 0.91
Weighted- Average Exercise Price, Exercisable at end of period 2.68 2.46    
Weighted- Average Exercise Price, Vested and expected to vest at end of period $ 2.68 $ 2.46    
Weighted-Average Contractual Life (In Years), Outstanding 5 years 5 months 23 days 5 years 18 days 4 years 11 months 8 days 4 years 6 months 18 days
Weighted-Average Contractual Life (In Years), Granted 9 years 10 months 28 days 9 years 10 months 17 days    
Weighted-Average Contractual Life (In Years), Exercisable at end of period 5 years 6 months 4 days 6 years 10 months 13 days    
Weighted-Average Contractual Life (In Years), Vested and expected to vest at end of period 5 years 6 months 4 days 6 years 10 months 13 days