BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2021	Jun. 30, 2020
Current assets:
Cash and cash equivalents	$ 3,721	$ 6,421
Investments	1,295	2,560
Accounts receivable, net of allowance for doubtful accounts of $2 and $6 at June 30, 2021 and 2020, respectively	10,933	5,155
Deferred costs	193	155
Inventory	8,437	8,238
Prepaid expenses and other current assets	434	145
Total current assets	25,013	22,674
Land and building, net	6,437
Equipment and improvements, net	3,845	2,686
Right of use asset, net	2,605	2,943
Intangibles, net	186	162
Deferred income taxes, net	463	259
Investments	1,704	2,360
Other assets	67	42
Total assets	40,320	31,126
Current liabilities:
Accounts payable	2,288	1,965
Accrued liabilities	2,198	2,411
Deferred revenue	150	200
Notes payable	1,236	651
Total current liabilities	5,872	5,227
Non-current liabilities:
Lease liability, net of current portion	2,432	2,750
Income taxes payable	397	804
Notes payable, net of current portion	11,535	3,283
Total non-current liabilities	14,364	6,837
Total liabilities	20,236	12,064
Commitments and Contingencies:
Shareholders' equity:
Common stock, no par value, 50,000,000 shares authorized; 3,645,660 and 3,811,137 shares issued and outstanding at June 30, 2021 and 2020, respectively	7,953	12,752
Accumulated other comprehensive loss	(215)	(1,586)
Retained earnings	12,346	7,896
Total shareholders' equity	20,084	19,062
Total liabilities and shareholders' equity	$ 40,320	$ 31,126