CONDENSED BALANCE SHEETS (unaudited) - USD ($)	Mar. 31, 2017	Dec. 31, 2016
Current Assets
Cash and cash equivalents	$ 3,141,223	$ 5,042,477
Accounts receivable, net	4,220,481	3,098,635
Inventories	1,537,321	1,254,915
Investment in debt securities	7,906,370	6,462,369
Prepaid and other current assets	1,156,995	900,722
Total Current Assets	17,962,390	16,759,118
Property and Equipment, Net	507,840	433,408
Patent Rights, Net	602,412	626,509
Investment in Debt Securities		1,103,773
Deposits	24,272	24,272
Total Assets	19,096,914	18,947,080
Current Liabilities
Accounts payable and accrued expenses	3,321,792	2,762,371
Product warranties	52,303	40,481
Revolving credit facility	1,500,000	0
Deferred revenue, current portion	563,005	853,798
Total Current Liabilities	5,437,100	3,656,650
Deferred Revenue, Net of Current Portion	9,166	16,251
Total Liabilities	5,446,266	3,672,901
Commitments and Contingencies
Stockholders' Equity
Preferred stock, 5,000,000 shares authorized and none issued and outstanding.
Common stock, $0.01 par value - 50,000,000 authorized and 13,527,168 and 13,546,171 issued and outstanding at March 31, 2017 and December 31, 2016, respectively.	135,271	135,461
Additional paid-in capital	22,879,767	22,930,975
Accumulated deficit	(9,364,390)	(7,792,257)
Total Stockholders' Equity	13,650,648	15,274,179
Total Liabilities and Stockholders' Equity	$ 19,096,914	$ 18,947,080

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.

Name:	us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.