Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Revenues:
Revenues	$ 5,942	$ 7,467	$ 17,716	$ 21,343
Cost of revenues:
Cost of revenues	3,012	3,307	9,400	10,066
Gross profit:
Gross profit	2,930	4,160	8,316	11,277
Operating expenses:
Research and development	1,087	1,289	3,458	3,363
Sales and marketing	2,232	2,733	7,814	7,923
General and administrative	2,273	1,986	6,503	5,863
Total operating expenses	5,592	6,008	17,775	17,149
Loss from operations	(2,662)	(1,848)	(9,459)	(5,872)
Other expense, net	(318)	(534)	(1,073)	(1,280)
Net loss before income tax	(2,980)	(2,382)	(10,532)	(7,152)
Provision for income taxes	(19)	36	(119)	25
Net loss	$ (2,999)	$ (2,346)	$ (10,651)	$ (7,127)
Basic and diluted net loss per share (Note 11) (in dollars per share)	$ (0.20)	$ (0.16)	$ (0.70)	$ (0.51)
Weighted-average shares of common stock used in computing basic and diluted net loss per share attributable to common stockholders (in shares)	15,122	14,953	15,222	14,068
Statements of comprehensive loss:
Consolidated net loss	$ (2,999)	$ (2,346)	$ (10,651)	$ (7,127)
Foreign currency translation adjustments, net	(143)	257	(592)	1,028
Other comprehensive loss		(69)		(80)
Comprehensive loss	(3,142)	(2,158)	(11,243)	(6,179)
Fair Value, Measurements, Recurring [Member]
Revenues:
Revenues	4,891	5,552	15,186	16,397
Cost of revenues:
Cost of revenues	1,938	1,903	5,973	5,863
Gross profit:
Gross profit	2,953	3,649	9,213	10,534
Fair Value, Measurements, Nonrecurring [Member]
Revenues:
Revenues	1,051	1,915	2,530	4,946
Cost of revenues:
Cost of revenues	1,074	1,404	3,427	4,203
Gross profit:
Gross profit	$ (23)	$ 511	$ (897)	$ 743