Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2019	Mar. 31, 2018
Current assets:
Cash and cash equivalents	$ 7,071	$ 10,152
Short-term investments	1,935	5,319
Trade accounts receivable, net of allowance for doubtful accounts of $539 and $333 at March 31, 2019 and March 31, 2018, respectively	16,929	12,866
Unbilled accounts receivable	6,487	7,473
Inventories	2,916	2,921
Prepaid expenses and other current assets	1,367	1,165
Total current assets	36,705	39,896
Property and equipment, net	1,965	2,333
Intangible assets, net	3,286	3,751
Goodwill	15,150	15,150
Other assets	849	1,756
Total assets	57,955	62,886
Current liabilities:
Trade accounts payable	9,441	7,838
Accrued payroll and related expenses	6,536	7,398
Accrued liabilities	2,370	2,358
Deferred revenue	4,883	4,900
Total current liabilities	23,230	22,494
Deferred rent	455	638
Deferred income taxes	65	65
Unrecognized tax benefits	150	168
Total liabilities	23,900	23,365
Commitments and contingencies (Note 6)
Stockholders' equity:
Preferred stock, $1.00 par value: Authorized shares - 2,000 Issued and outstanding shares - none
Common stock, $0.10 par value: Authorized shares - 70,000 at March 31, 2019 and March 31, 2018 Issued and outstanding shares - 33,377 at March 31, 2019 and 33,186 at March 31, 2018	3,338	3,318
Additional paid-in capital	142,260	139,722
Accumulated deficit	(111,543)	(103,519)
Total stockholders' equity	34,055	39,521
Total liabilities and stockholders' equity	$ 57,955	$ 62,886