Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Current assets:
Cash	$ 701	$ 1,248
Accounts receivable, net	569	$ 397
Investment in lease, net – current portion	22
Inventory, net	476	$ 591
Prepaid expenses and other current assets	105	228
Total current assets	1,873	2,464
Property and equipment, net	41	$ 12
Investment in lease, net – less current portion	71
Other assets, net	1,442	$ 1,494
Total assets	3,427	3,970
Current liabilities:
Accounts payable	744	652
Accrued expenses	290	237
Deferred revenue, current portion	70	70
Total current liabilities	1,104	959
Long-term portion of deferred revenue	330	347
Total liabilities	$ 1,434	$ 1,306
Commitments and Contingencies
Stockholders’ equity
Preferred stock, $.001 par value; 5,000,000 shares authorized at March 31, 2016 and December 31, 2015; no shares issued and outstanding at March 31, 2016 and December 31, 2015
Common stock, $.001 par value; 90,000,000 shares authorized at March 31, 2016 and December 31, 2015; 48,825,461 and 48,580,355 shares issued and outstanding at March 31, 2016 and December 31, 2015, respectively.	$ 49	$ 49
Additional paid-in capital	119,961	119,797
Accumulated other comprehensive income	72	71
Accumulated deficit	(118,089)	(117,253)
Total stockholders’ equity	1,993	2,664
Total liabilities and stockholders’ equity	$ 3,427	$ 3,970