Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Current Assets:
Cash and cash equivalents	$ 3,378	$ 5,686
Accounts receivable, net of allowances of $463 and $376, respectively	714	928
Site equipment to be installed	4,866	2,998
Prepaid expenses and other current assets	680	1,050
Total current assets	9,638	10,662
Fixed assets, net (Note 3)	3,678	3,101
Software development costs, net of accumulated amortization of $2,651 and $2,641, respectively	1,459	970
Deferred costs	775	904
Goodwill (Note 4)	1,004	937
Intangible assets, net (Note 4)		29
Other assets	16	92
Total assets	16,570	16,695
Current Liabilities:
Accounts payable	390	247
Accrued compensation (Note 6)	646	1,060
Accrued expenses	418	697
Sales taxes payable	107	142
Income taxes payable	13	4
Current portion of long-term debt (Note 11)	5,059	2,988
Current portion of obligations under capital leases (Note 12)	176	155
Current portion of deferred revenue	3,564	1,059
Deferred rent	182
Other current liabilities	192	291
Total current liabilities	10,747	6,643
Long-term debt (Note 11)	8	5,123
Long-term obligations under capital leases (Note 12)	164	259
Long-term deferred revenue	63	219
Deferred rent		371
Other liabilities	52	12
Total liabilities	11,034	12,627
Commitments and contingencies (Notes 12 and 13)
Shareholders' Equity (Note 9):
Series A 10% cumulative convertible preferred stock, $.005 par value, $156 liquidation preference, 156 shares authorized; 156 shares issued and outstanding at December 31, 2017 and 2016	1	1
Common stock, $.005 par value, 15,000 shares authorized at December 31, 2017 and 2016; 2,521 and 2,261 shares issued and outstanding at December 31, 2017 and 2016, respectively	13	11
Treasury stock, at cost, 10 shares at December 31, 2017 and 2016	(456)	(456)
Additional paid-in capital	134,752	132,315
Accumulated deficit	(129,119)	(128,026)
Accumulated other comprehensive income (Note 14)	345	223
Total shareholders' equity	5,536	4,068
Total liabilities and shareholders' equity	$ 16,570	$ 16,695

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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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.