CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2020	Mar. 31, 2019
ASSETS
Cash and cash equivalents	$ 51,506	$ 42,495
Short-term investments	15,061	19,346
Accounts receivable, net	6,330	7,339
Inventories	4,282	5,685
Prepaid expenses and other current assets	1,934	2,500
Total current assets	79,113	77,365
Property and equipment, net	8,119	9,001
Operating lease right-of-use assets	617
Long-term investments	4,117	8,997
Goodwill	7,978	7,978
Intangible assets, net	2,489	2,722
Other assets	128	160
Total assets	102,561	106,223
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	1,184	1,864
Lease liabilities, current	498
Accrued expenses and other liabilities	6,578	6,869
Total current liabilities	8,260	8,733
Income taxes payable	620	622
Lease liabilities, non-current	142
Contingent consideration, non-current	3,898	3,713
Total liabilities	12,920	13,068
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: 23,229,286 and 22,320,156 shares, respectively	23	22
Additional paid-in capital	40,176	33,462
Accumulated other comprehensive income (loss)	71	(37)
Retained earnings	49,371	59,708
Total stockholders' equity	89,641	93,155
Total liabilities and stockholders' equity	$ 102,561	$ 106,223