CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Operating Activities:
Net income (loss)	$ 262	$ (140)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	78	75
Stock-based compensation	109	117
Changes in operating assets and liabilities:
Accounts receivable	(225)	(554)
Inventories	(19)
Prepaid expenses and other assets	1	4
Accounts payable and accrued expenses	421	95
Deferred revenue	81	255
Net cash provided by (used in) operating activities	708	(148)
Investing Activities:
Purchases of property and equipment	(36)	(12)
Financing Activities:
Proceeds from line of credit	508	371
Payments on line of credit	(638)	(385)
Penalties and waived penalties on dividends	12	5
Proceeds from stock options exercised		9
Proceeds from warrants exercised		44
Principal payments on capital leases	(61)	(43)
Net cash (used in) provided by financing activities	(179)	1
Net increase (decrease) in cash and cash equivalents	493	(159)
Cash and cash equivalents at beginning of period	52	308
Cash and cash equivalents at end of period	545	149
Cash paid during the year for interest	9	9
SUPPLEMENTAL DISCLOSURE OF NON CASH FINANCING ACTIVITIES:
Preferred stock dividends accrued	75	75
Purchase of leased equipment under capital lease	$ 34	$ 71