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Shareholders' Equity - Shareholders' Equity (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Common Stock
Beginning balance, value	$ 582	$ 584
Beginning balance, shares	58,171,466	58,434,566
Purchase of shares for cancellation, value	$ (1)	$ (1)
Purchase of shares for cancellation, shares	(33,200)	(145,200)
Ending balance, value	$ 581	$ 583
Ending balance, shares	58,138,266	58,289,366
Additional Paid-In Capital
Beginning balance, value	$ 69,873	$ 69,312
Stock option expense	173	442
Purchase of shares for cancellation, value	(10)	(64)
Ending balance, value	70,036	69,690
Retained Earnings / Accumulated Deficit
Beginning balance, value	(43,365)	(39,767)
Net loss	(1,443)	(1,617)
Ending balance, value	(44,808)	(41,384)
Total Shareholders' Equity
Beginning balance, value	27,090	30,129
Stock option expense	173	442
Purchase of shares for cancellation, value	(11)	(65)
Net loss	(1,443)	(1,617)
Ending balance, value	$ 25,809	$ 28,889

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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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