Statements of Cash Flows (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Cash flow from operating activities:
Net income	$ 227,109	$ 169,619
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Depreciation and amortization	9,993	8,569
Deferred tax (benefit) expense	(2,000)	38,000
Share-based compensation expense	31,434	28,349
Net changes in assets and liabilities
Decrease in certificate of deposit, securing line of credit		50,000
Decrease (increase) in receivables on government contracts	315,680	(928,987)
(Increase) decrease in prepaid expenses and other current assets	(1,042)	14,438
(Decrease) increase in accrued payroll and payroll taxes	(91,059)	31,325
(Decrease) increase in accounts payable and accrued expenses	(545,188)	866,171
(Decrease) increase in accrued warranty expense	(16,745)	36,400
(Decrease) increase in long-term liabilities	(1,252)	13,994
Net (used in) cash provided by operating activities	(73,070)	327,878
Cash flow from investing activities:
Purchase of property and equipment	(3,346)	(2,428)
Net cash used in investing activities	(3,346)	(2,428)
Net (decrease) increase in cash and cash equivalents	(76,416)	325,450
Cash and cash equivalents, beginning of period	963,556	638,106
Cash and cash equivalents, end of period	887,140	963,556
Supplemental cash flows information:
Cash paid during the period for income taxes	$ 31,000	$ 27,135