CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2020	Mar. 31, 2020
ASSETS
Cash and cash equivalents	$ 50,970	$ 51,506
Short-term investments	13,596	15,061
Accounts receivable, net	3,838	6,330
Inventories	4,703	4,282
Prepaid expenses and other current assets	1,711	1,934
Total current assets	74,818	79,113
Property and equipment, net	7,870	8,119
Operating lease right-of-use assets	465	617
Long-term investments	4,863	4,117
Goodwill	7,978	7,978
Intangible assets, net	2,431	2,489
Other assets	130	128
Total assets	98,555	102,561
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	1,069	1,184
Lease liabilities, current	405	498
Accrued expenses and other liabilities	6,057	6,578
Total current liabilities	7,531	8,260
Income taxes payable	334	620
Lease liabilities, non-current	84	142
Contingent consideration, non-current	3,922	3,898
Total liabilities	11,871	12,920
Commitments and contingencies (Note 9)
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: 23,607,773 and 23,229,286 shares, respectively	24	23
Additional paid-in capital	43,269	40,176
Accumulated other comprehensive income	96	71
Retained earnings	43,295	49,371
Total stockholders' equity	86,684	89,641
Total liabilities and stockholders' equity	$ 98,555	$ 102,561