Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Grants outside of 2000 Plan (Details)

v3.6.0.2
Stock-Based Compensation - Grants outside of 2000 Plan (Details) - shares
 3 Months Ended 9 Months Ended
Dec. 31, 2016
Sep. 30, 2016
Dec. 31, 2015
Dec. 31, 2016
Mar. 31, 2016
Stock options          
Class of Stock          
Options outstanding (in shares) 357,037     357,037 467,631
Granted (in shares) 0   0 88,930  
Stock options | Non-qualified stock options          
Class of Stock          
Options outstanding (in shares) 131,430     131,430  
Granted (in shares)   88,930      
Portion vesting one year after the issuance date (as a percent)       25.00%  
Vesting period after one year of grant       1 year  
Vesting period of awards after issuance date       48 months  
Portion vesting on first day of each month after one year from the issuance date (as a percent)       2.083%  
Vesting period       4 years  
Expiration Term       10 years  
Stock options | Non-qualified stock options | Executive Vice President of Sales and Marketing          
Class of Stock          
Options outstanding (in shares) 42,500     42,500  
Stock options | Non-qualified stock options | Vice President, Manufacturing          
Class of Stock          
Options outstanding (in shares) 88,930     88,930  
Restricted stock units          
Class of Stock          
Restricted stock units outstanding (in shares) 14,820     14,820  
Granted (in shares)   14,820      
Restricted stock units | Vice President, Manufacturing          
Class of Stock          
Restricted stock units outstanding (in shares) 14,820     14,820  
Non-qualified stock options granted prior to fiscal 2017 | Non-qualified stock options          
Class of Stock          
Options outstanding (in shares) 42,500     42,500