CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)	Mar. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 25,913,765	$ 30,014,405
Accounts receivable, net of allowance for doubtful accounts of approximately $307,000 and $272,000 respectively	8,383,925	8,052,203
Inventory	5,850,730	5,458,840
Prepaid expenses and other	749,437	511,804
Total current assets	40,897,857	44,037,252
Property and equipment, net	1,484,279	1,494,247
Intangible assets	890,688	828,979
Total Assets	43,272,824	46,360,478
Current liabilities:
Borrowings under revolving loan agreement	3,976,320	4,025,023
Accounts payable and accrued expenses	6,660,267	7,002,165
Current maturities of long term obligations	22,913	20,899
Deferred revenue, current	35,250	33,282
Total current liabilities	10,694,750	11,081,369
Long Term Obligations, net of current maturities and deferred financing fees	20,276,634	20,265,745
Deferred lease	89,888
Deferred revenue, noncurrent	86,818	92,215
Total liabilities	31,148,090	31,439,329
Shareholders' equity:
Common stock, $0.01 par value per share; 50,000,000 shares authorized; 33,063,960 and 33,008,865 shares issued and outstanding	330,639	330,088
Additional paid-in capital	133,439,943	132,474,884
Accumulated deficit	(121,645,848)	(117,883,823)
Total shareholders' equity	12,124,734	14,921,149
Total Liabilities and Shareholders' equity	$ 43,272,824	$ 46,360,478

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.

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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.