Condensed Consolidated Balance Sheets - USD ($)	Sep. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 5,546,000	$ 4,972,000
Restricted cash	305,000	305,000
Investments - short term	1,286,000	115,000
Accounts receivable, net of allowance for doubtful accounts of $341,000 and $91,000 in 2016 and 2017, respectively	9,379,000	9,585,000
Financing receivables - current, net of allowance for doubtful accounts of $-0- in 2016 and 2017	1,488,000	1,766,000
Inventory, net	4,723,000	3,920,000
Deferred costs - current	4,208,000	3,750,000
Prepaid expenses and other current assets	3,795,000	3,495,000
Total current assets	30,730,000	27,908,000
Investments - long term	10,238,000	1,499,000
Financing receivables - less current portion	1,658,000	2,430,000
Deferred costs - less current portion	5,027,000	6,638,000
Fixed assets, net	2,770,000	3,075,000
Goodwill	7,042,000	1,837,000
Intangible assets, net	5,595,000	706,000
Other assets	159,000	153,000
Total assets	63,219,000	44,246,000
Current liabilities:
Short-term borrowings		2,993,000
Accounts payable and accrued expenses	8,637,000	7,622,000
Deferred revenue - current	9,799,000	7,197,000
Acquisition related contingent consideration - current	1,868,000
Total current liabilities	20,304,000	17,812,000
Deferred rent	316,000	366,000
Deferred revenue - less current portion	8,403,000	10,066,000
Acquisition related contingent consideration – less current portion	815,000
Total liabilities	29,838,000	28,244,000
Commitments and Contingencies (Note 21)
STOCKHOLDERS’ EQUITY
Preferred stock; authorized 5,000,000 shares, $0.01 par value; none issued
Common stock; authorized 50,000,000 shares, $0.01 par value; 14,578,000 and 18,316,000 shares issued at December 31, 2016 and September 30, 2017, respectively; shares outstanding, 13,767,000 and 17,435,000 at December 31, 2016 and September 30, 2017, respectively	165,000	129,000
Additional paid-in capital	132,980,000	111,844,000
Accumulated deficit	(94,494,000)	(91,498,000)
Accumulated other comprehensive loss	(471,000)	(103,000)
Treasury stock; 811,000 and 881,000 common shares at cost at December 31, 2016 and September 30, 2017, respectively	(4,799,000)	(4,370,000)
Total stockholders’ equity	33,381,000	16,002,000
Total liabilities and stockholders’ equity	$ 63,219,000	$ 44,246,000

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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- 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.