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Shareholders Equity (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Common Stock
Beginning balance, value	$ 582	$ 584
Beginning balance, shares	58,171,466	58,434,566
Stock option expense
Purchase of shares for cancellation, value
Purchase of shares for cancellation, shares	(27,900)	(52,614)
Net loss
Ending balance, value	$ 582	$ 584
Ending balance, shares	58,143,566	58,381,952
Additional Paid-In Capital
Beginning balance, value	$ 69,873	$ 69,312
Beginning balance, shares
Stock option expense	$ 88	$ 10
Purchase of shares for cancellation, value	$ (9)	$ (26)
Purchase of shares for cancellation, shares
Net loss
Ending balance, value	$ 69,952	$ 69,296
Ending balance, shares
Retained Earnings / Accumulated Deficit
Beginning balance, value	$ (43,365)	$ (39,767)
Beginning balance, shares
Stock option expense
Purchase of shares for cancellation, value
Purchase of shares for cancellation, shares
Net loss	$ (441)	$ (1,004)
Ending balance, value	$ (43,806)	$ (40,771)
Ending balance, shares
Beginning balance, value	$ 27,090	$ 30,129
Beginning balance, shares
Stock option expense	$ 88	$ 10
Purchase of shares for cancellation, value	$ (9)	$ (26)
Purchase of shares for cancellation, shares
Net loss	$ (441)	$ (1,004)
Ending balance, value	$ 26,728	$ 29,109
Ending balance, shares

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Amount of increase to additional paid-in capital (APIC) for recognition of cost for option under share-based payment arrangement.

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