CONDENSED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 1,265	$ 1,104
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	150	138
Share-based compensation	26	12
Non-cash lease expense	9	13
Amortization of loan fees	2	2
Gain on sale of investments	(12)
Deferred income tax		(41)
Bad debt expense	3	12
Changes in operating assets and liabilities:
Accounts receivable and other receivables	(986)	931
Deferred costs	13	(63)
Inventory	(75)	(605)
Prepaid expenses and other assets	(198)	391
Accounts payable and accrued expenses	(767)	(1,040)
Deferred revenue		25
Income taxes payable	(318)	29
Net cash provided by (used in) operating activities	(888)	908
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of equipment	(89)	(61)
Purchases of investments		(1,258)
Increase in intangibles	(1)	(4)
Proceeds from sale of investments	115
Net cash provided by (used in) investing activities	25	(1,323)
CASH FLOWS FROM FINANCING ACTIVITIES:
Principal payments on capital lease and notes payable	(161)	(159)
Payment of employee payroll taxes on net issuance of common stock	(259)
Proceeds from stock option exercises and ESPP contributions	64	15
Repurchases of common stock		(681)
Net cash used in financing activities	(356)	(825)
Net decrease in cash and cash equivalents	(1,219)	(1,240)
Cash and cash equivalents, beginning of period	6,421	7,742
Cash and cash equivalents, end of period	5,202	6,502
Cash paid during the period for:
Interest	54	63
Income taxes, net of refunds	$ 747