Changes in deferred revenue are as follows as of March 31, 2018 and 2017 (in thousands):
2018
2017
FPP Balance, beginning of the period
$
3,414
2,929
FPP Billings
15,138
13,447
FPP Revenue recognized
(15,003)
(12,962)
Balance attributed to FPP contracts
3,549
Distributor Support System
1,087
Deposits
1,960
1,636
Deferred revenue balance, end of the period
6,596
5,050
Tabular disclosure of changes in deferred revenue.
No definition available.