Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Recurring (Details)

v3.8.0.1
Fair Value Measurements - Recurring (Details) - Recurring - USD ($)
$ in Thousands
Mar. 31, 2018
Mar. 31, 2017
Total    
Fair Value Measurements    
Cash equivalents   $ 7,520
Restricted cash $ 5,000 5,514
Quoted Prices in Active Markets for Identical Assets (Level 1)    
Fair Value Measurements    
Cash equivalents   7,520
Restricted cash $ 5,000 $ 5,514