Balance Sheets (Unaudited) - USD ($)	Jul. 01, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 1,941,819	$ 3,407,760
Accounts receivable-trade, net	2,705,653	1,959,606
Inventories, net	1,945,808	1,970,961
Prepaid expenses and other current assets	92,775	88,443
Total current assets	6,686,055	7,426,770
Property and equipment:
Production equipment	9,046,846	9,046,846
Furniture and office equipment	491,928	412,412
Leasehold improvements	886,582	886,582
Total cost	10,425,356	10,345,840
Accumulated depreciation and amortization	(9,007,368)	(8,720,219)
Construction in progress	138,308	158,006
Net property and equipment	1,556,296	1,783,627
Deferred taxes	3,457,349	2,827,349
Total assets	11,699,700	12,037,746
Current liabilities:
Accounts payable	934,416	662,482
Accrued expenses	839,610	623,959
Total current liabilities	1,774,026	1,286,441
Stockholders equity:
Common stock, $0.01 par value, authorized 20,000,000 shares; issued 13,423,492; outstanding 13,203,436; at July 1, 2017 and December 31, 2016	134,235	134,235
Additional paid-in capital	35,564,672	35,452,685
Accumulated deficit	(25,256,180)	(24,318,562)
Less cost of 220,056 common shares repurchased at July 1, 2017 and December 31, 2016	(517,053)	(517,053)
Total stockholders equity	9,925,674	10,751,305
Total liabilities and stockholders equity	$ 11,699,700	$ 12,037,746