Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 313	$ 846
Accounts receivable, net of allowance of $16 at March 31, 2016 and $22 at December 31, 2015, respectively	61	94
Prepaid expenses and other current assets	353	372
Total current assets	727	1,312
Property and equipment, net	33	44
Intangible assets, net	510	591
Other assets	29	29
Total assets	1,299	1,976
Current liabilities:
Accounts payable	1,079	787
Short-term debt, net	1,097	991
Accrued compensation	269	263
Other accrued liabilities	827	615
Deferred revenue	419	384
Derivative liability	305	330
Total current liabilities	3,996	3,370
Deferred revenue long-term	420	455
Other long-term liabilities	21	21
Total liabilities	$ 4,437	3,846
Commitments and Contingencies
Equity (deficit)
Common stock	$ 2	2
Treasury stock	(325)	(325)
Additional paid in capital	94,522	95,312
Accumulated deficit	(128,448)	(127,116)
Accumulated other comprehensive loss	(14)	(14)
Total iSign stockholder's deficit	(2,602)	(1,334)
Non-controlling interest	(536)	(536)
Total deficit	(3,138)	(1,870)
Total liabilities and deficit	1,299	1,976
Series A-1 Preferred Stock [Member]
Equity (deficit)
Preferred stock by class of stock	966	947
Series B Preferred Stock [Member]
Equity (deficit)
Preferred stock by class of stock	11,990	11,653
Series C Preferred Stock [Member]
Equity (deficit)
Preferred stock by class of stock	6,206	6,069
Series D-1 Preferred Stock [Member]
Equity (deficit)
Preferred stock by class of stock	7,068	6,866
Series D-2 Preferred Stock [Member]
Equity (deficit)
Preferred stock by class of stock	$ 5,431	$ 5,272