CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2017	Mar. 31, 2016
ASSETS
Cash and cash equivalents	$ 33,736	$ 31,963
Short-term investments	16,199	23,149
Accounts receivable, net	6,349	7,478
Inventories	9,211	7,174
Prepaid expenses and other current assets	2,777	2,198
Total current assets	68,272	71,962
Property and equipment, net	7,689	8,653
Long-term investments	12,898	11,148
Goodwill	7,978	8,030
Intangible assets, net	3,302	3,651
Other assets	2,456	3,086
Total assets	102,595	106,530
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	1,627	2,514
Accrued expenses and other liabilities	7,051	4,398
Deferred revenue	1,796	2,330
Total current liabilities	10,474	9,242
Income taxes payable	244	116
Deferred income taxes	15	811
Other accrued expenses	5,418	6,492
Total liabilities	16,151	16,661
Commitments and contingencies (Note 7)
Stockholders' equity:
Preferred stock: $0.001 par value authorized: 5,000,000 shares; issued and outstanding: none
Common Stock: $0.001 par value authorized: 150,000,000 shares; issued and outstanding: 20,612,757 and 21,716,364 shares, respectively	21	22
Additional paid-in capital	21,830	25,050
Accumulated other comprehensive income (loss)	(62)	27
Retained earnings	64,655	64,770
Total stockholders' equity	86,444	89,869
Total liabilities and stockholders' equity	$ 102,595	$ 106,530