Condensed Consolidated Statements of Cash Flows (USD $)	3 Months Ended
	Mar. 31, 2015		Mar. 31, 2014
Cash flows from operating activities:
Net loss	$ (3,945,000)		$ (2,831,000)
Adjustments to reconcile net loss to cash used in operating activities:
Bad debt expense	7,000		128,000
Proceeds from sale of New Jersey net operating loss carryforwards	0		63,000
Stock-based compensation expense	388,000		610,000
Depreciation and amortization	218,000		551,000
Inventory reserve	108,000		29,000
Other non-cash items	(1,000)		6,000
Changes in:
Accounts receivable	1,962,000		(1,134,000)
Financing receivables	350,000		714,000
Inventory	(1,652,000)		168,000
Prepaid expenses and other assets	21,000		(177,000)
Deferred costs	90,000		97,000
Deferred revenue	(830,000)		755,000
Accounts payable and accrued expenses	1,389,000		368,000
Net cash used in operating activities	(1,895,000)		(653,000)
Cash flows from investing activities:
Expenditures for fixed assets including website development costs	(711,000)		(56,000)
Purchase of investments	(1,023,000)		(1,575,000)
Maturities of investments	1,013,000		1,565,000
Net cash used in investing activities	(721,000)		(66,000)
Cash flows from financing activities:
Principal payments of capital lease obligation	(39,000)		(34,000)
Proceeds from exercise of stock options	155,000		43,000
Net cash provided by financing activities	116,000		9,000
Effect of foreign exchange rate changes on cash and cash equivalents	(104,000)		46,000
Net decrease in cash and cash equivalents	(2,604,000)		(664,000)
Cash and cash equivalents - beginning of period	5,974,000	[1]	6,582,000
Cash and cash equivalents - end of period	3,370,000		5,918,000
Supplemental disclosure of cash flow information:
Taxes	0		0
Interest	4,000		9,000
Noncash activities:
Unrealized gain on investments	15,000		1,000
Shares withheld pursuant to stock issuance	$ 117,000		$ 92,000

[1] Derived from audited balance sheet as of December 31, 2014.