Annual report pursuant to Section 13 and 15(d)

Income Taxes - NOL and Tax Credits (Details)

v3.20.1
Income Taxes - NOL and Tax Credits (Details)
$ in Thousands
12 Months Ended
Mar. 31, 2020
USD ($)
U.S. research credits  
Tax credit carryforwards  
Tax Credits $ 2,877
Texas franchise tax credits  
Tax credit carryforwards  
Tax Credits $ 1,902
Fiscal Year of Expiration Dec. 31, 2026
Domestic Tax Authority [Member] | Investment Tax Credit Carryforward [Member]  
Tax credit carryforwards  
Tax Credits $ 33
Fiscal Year of Expiration Dec. 31, 2028
Foreign Tax Authority [Member] | Investment Tax Credit Carryforward [Member]  
Tax credit carryforwards  
Tax Credits $ 122