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Other Financial Statement Information (Details 1) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Supplemental Cash Flow Information:    
Cash paid for interest $ 150 $ 18
Cash paid for taxes $ 38
Non-cash Investing and Financing Activities    
Non-cash conversion of borrowings from affiliate to equity $ 2,126
Leasehold improvements paid for by landlord allowance 344
Noncash preferred stock dividends $ 344 $ 112
Adjustment for options issued due to merger with Wireless Ronin Technologies, Inc. (212)
Issuance of notes in lieu of interest 5
Exchange of warrants for common stock 9
Issuance of stock upon conversion of preferred stock $ 78
Common and preferred shares issued for ConeXus merger 5,184
Common shares, stock options and warrants issued for Wireless Ronin merger 11,919