Annual report pursuant to Section 13 and 15(d)

Income Taxes - Reconciliation of Income Tax Expense Between Statutory U S Income Tax Rate With Actual Income Tax Provision (Detail)

v3.5.0.1
Income Taxes - Reconciliation of Income Tax Expense Between Statutory U S Income Tax Rate With Actual Income Tax Provision (Detail) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Mar. 31, 2014
Income Tax Disclosure [Abstract]      
Statutory federal income taxes $ (9,736) $ (8,365) $ (6,017)
State income taxes, net of federal benefit 0 17 (765)
Non-deductible expenses 821 2,171 895
Rate change (224) 0 0
Change in uncertain tax liability (123) 324 (136)
Change in valuation allowance 10,106 6,600 5,751
Return-to-provision adjustments (630) 0 0
Total income tax provision $ 214 $ 747 $ (272)