Stock incentive plan and stock-based compensation (Details Textual) (USD $) In Thousands, except Share data, unless otherwise specified	6 Months Ended	0 Months Ended		6 Months Ended	0 Months Ended			1 Months Ended
	Jun. 30, 2014	May 16, 2014 Consulting Agreement [Member]	Nov. 12, 2013 Consulting Agreement [Member]	Jun. 30, 2014 Consulting Agreement [Member]	Jun. 16, 2014 Settlement Agreement [Member]	Sep. 27, 2013 Stock Incentive Plan 2012 [Member]	Sep. 27, 2013 Amended And Restated Plan [Member]	Jul. 31, 2014 Restricted Stock [Member] Subsequent Event [Member]	Jun. 30, 2014 JS Gaming, Inc [Member] Subsequent Event [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	415,000					1,335,000	920,000
Percentage Of Stockholder Incentive Stock Option Granted On Date Of Grant	10.00%
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized	$ 174
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term	1 year 2 months 16 days
Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Grants In Period	85,000							12,000
Stock Issued During Period, Value, Restricted Stock Award, Gross								12
Stock Issuance Costs			57	3
Common Stock Shares Issued Upon Execution Of Consulting Agreement		12,000
Warrants Expiry Description	all issued warrants are exercisable and expire through 2017.
Cash Consideration Payable Upon Execution Of Agreement		6	20
Cash Consideration Payable Subsequent To Date Of Agreement			25
Common Stock Issuable Upon Execution Of Agreement			10,000		75,000
Common Stock Issuable Subsequent To Date Of Agreement			10,000
Common Stock Shares Issuance Upon Execution Agreement			20,000
Settlement Agreement, Common stock fair value									$ 49