Balance Sheets (Current Period Unaudited) - USD ($)	Jun. 30, 2016	Mar. 31, 2016	[1]
Current assets
Cash and cash equivalents	$ 1,905,697	$ 7,534,593
Marketable securities, short-term	19,559,795	19,697,384
Accounts receivable, net of allowance for uncollectible accounts of $15,000	2,651,926	2,244,086
Inventories	3,186,450	3,205,233
Prepaid expenses and other assets	701,867	734,524
Total current assets	28,005,735	33,415,820
Fixed assets
Machinery and equipment	8,839,621	8,840,033
Leasehold improvements	1,539,965	1,539,965
	10,379,586	10,379,998
Less accumulated depreciation and amortization	8,882,264	8,688,285
Net fixed assets	1,497,322	1,691,713
Long-term deferred tax assets		51,188
Marketable securities, long-term	71,170,799	65,695,335
Total assets	100,673,856	100,854,056
Current liabilities
Accounts payable	297,831	317,990
Accrued payroll and other	591,821	556,674
Income taxes payable	1,281,154
Deferred revenue	714,805	714,805
Total current liabilities	2,885,611	1,589,469
Long-term deferred tax liabilities	520
Shareholders’ equity
Common stock, $0.01 par value, 6,000,000 shares authorized; 4,835,010 issued and outstanding as of June 30, 2016 and March 31, 2016	48,350	48,350
Additional paid-in capital	19,205,682	19,205,682
Accumulated other comprehensive income	676,962	451,359
Retained earnings	77,856,731	79,559,196
Total shareholders’ equity	97,787,725	99,264,587
Total liabilities and shareholders’ equity	$ 100,673,856	$ 100,854,056

[1] The March 31, 2016 Balance Sheet is derived from the audited financial statements contained in our Annual Report on Form 10-K for the fiscal year ended March 31, 2016.