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US SEISMIC SYSTEMS, INC. | 3 Months Ended
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Mar. 31, 2013
US SEISMIC SYSTEMS, INC. [Abstract] |
US Seismic Systems, Inc. [Text Block] | US SEISMIC SYSTEMS, INC. On February 28, 2013, the Company entered into a new Stock Purchase Agreement (the "2013 USSI Purchase Agreement") with USSI pursuant to which the Company made a payment to USSI of $2,500 to purchase additional shares of USSI Preferred Stock. The USSI Preferred Stock is the same class of shares that the Company acquired in 2012 and provides that upon any future liquidation of USSI, to the extent funds are available for distribution to USSI's stockholders after the satisfaction of any USSI liabilities at that time, USSI would first repay the Company for the purchase price of its USSI Preferred Stock. Thereafter, the Company would receive a further payment for such shares ratably with all other USSI Common Stock holders as though the Company's shares of USSI Preferred Stock were the same number of shares of USSI Common Stock. Following the February 28, 2013 payment to USSI, the Company owned approximately 95.0% of USSI on an as converted basis. The 2013 USSI Purchase Agreement contemplates that the Company may make an additional investment of $2,500 later this year in exchange for more shares of USSI Preferred Stock. If the Company fully funds that investment, it will own approximately 95.6% of USSI on an as converted basis (which amount would be diluted to approximately 87.9% if all options which could be awarded under USSI's 2012 Stock Purchase Plan were awarded and exercised).

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