CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011
Cash flows from operating activities:
Net loss	$ (2,942)	$ (3,547)	$ (2,979)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization of long-lived assets	144	159	364
Provision for (recovery from) bad debt	(7)	5	3
Stock-based compensation expense	1,049	1,280	1,007
Change in deferred tax assets	89	98	149
Foreign currency exchange (gain) loss	(3)	74	(7)
Change in assets and liabilities:
Trade accounts receivable	76	(157)	221
Other current and non-current assets	(72)	(175)	(80)
Accounts payable	(108)	71	1
Accrued liabilities	(197)	(299)	(24)
Deferred revenue	77	69	(84)
Net cash used in operating activities	(1,894)	(2,422)	(1,429)
Cash flows from investing activities:
Business acquisition, net of cash received	(490)
Purchases of property, plant and equipment	(81)	(76)	(266)
Net cash used for investing activities	(571)	(76)	(266)
Cash flows from financing activities:
Proceeds from exercise of stock options	24	87	379
Proceeds from issuance of common stock	47	85	83
Net cash provided by financing activities	71	172	462
Effect of exchange rate changes on cash	(59)	(110)	95
Net decrease in cash	(2,453)	(2,436)	(1,138)
Cash at beginning of year	8,918	11,354	12,492
Cash at end of year	6,465	8,918	11,354
Supplemental disclosures:
Cash paid for income taxes	148	879
Non-cash investing activities:
Issuance of common stock and stock options assumed in business acquisition	$ 5,095