Summary of Significant Accounting Policies (Tables)

12 Months Ended

Mar. 31, 2019

Changes in the accounts receivable allowances are as follows as of March 31, 2019 and 2018 (in thousands):


Balance, March 31, 2017	$	6,845
Additions charged to costs and expenses		(1,099)
Bad debt write-off		(2)
Balance, March 31, 2018	$	5,744
Additions charged to costs and expenses		(345)
Bad debt write-off		(101)
Balance, March 31, 2019	$	5,298

Following is the geographic revenue information based on the primary operating location of the Company’s customers (in thousands):

The following table summarizes the Company’s revenue by product (in thousands):


	Year Ended		Year Ended
	March 31, 2019		March 31, 2018
C30	$	1,810	$	1,694
C65		11,719		12,740
C200		5,218		2,832
C600		6,286		9,057
C800		5,846		6,461
C1000		20,538		17,886
Unit upgrades		—		143
Microturbine Products	$	51,417	$	50,813
Accessories and Parts		14,886		15,941
Total Product, Accessories and Parts		66,303		66,754
Service		17,109		16,083
Total Revenue	$	83,412	$	82,837